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NSYSU
1.
Wu, Pei-shuan.
Removal of nutrients from lake water by intergral vertical flow and subsurface flow constructed wetlands.
Degree: Master, Marine Environment and Engineering, 2008, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729108-180301
► Constructed wetlands (CWs) utilize the natural mechanisms in wetlands to remove pollutants by physical, chemical and biological processes. CWs are one of the ecological engineering…
(more)
▼ Constructed wetlands (CWs) utilize the natural mechanisms in
wetlands to remove pollutants by physical, chemical and biological processes. CWs are one of the ecological engineering methods to purity water quality and has been experimented to assess their capabilities to remove nutrients from eutrophic water bodies of lakes and reserviors. This
study was carried out to compare the removal of nutrients between vegetated and unvegetated CWs. The vertical flow bed was placed in the upstream, while the horizontal subsurface flow bed was set in the
downstream. Cannaceae was selected to plant in the vegetated CWs. Two kinds of hydraulic retention time (HRT), 3 days and 7 days, were applied and compared with each other in this study.
The experimental results show that no significantly difference between vegetated and unvegetated systems. The removal efficiencies of SS, BOD,
NH3-N, TP are measure equal to about 80%, 75%, 80% and 65%, respectively, while the removal efficiencies of TN, OP, and COD were reached about 50% and larger. Both of the two systems show high
efficiencies for nutrient removal. In the comparison between the two kinds of HRTâs, the HRT controlled at 3 days presented higher removal efficiencies than that controlled at 7 days.
Advisors/Committee Members: Wen-Chien Kuo (chair), Lei Yang (committee member), Jimmy C. M. Kao (chair).
Subjects/Keywords: constructed wetlands; Cannaceae; nutrient removal
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APA (6th Edition):
Wu, P. (2008). Removal of nutrients from lake water by intergral vertical flow and subsurface flow constructed wetlands. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729108-180301
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wu, Pei-shuan. “Removal of nutrients from lake water by intergral vertical flow and subsurface flow constructed wetlands.” 2008. Thesis, NSYSU. Accessed April 14, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729108-180301.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wu, Pei-shuan. “Removal of nutrients from lake water by intergral vertical flow and subsurface flow constructed wetlands.” 2008. Web. 14 Apr 2021.
Vancouver:
Wu P. Removal of nutrients from lake water by intergral vertical flow and subsurface flow constructed wetlands. [Internet] [Thesis]. NSYSU; 2008. [cited 2021 Apr 14].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729108-180301.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wu P. Removal of nutrients from lake water by intergral vertical flow and subsurface flow constructed wetlands. [Thesis]. NSYSU; 2008. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729108-180301
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University
2.
Gregory, Christopher T. (Christopher Thomas).
Temperature and infiltration characterization of a constructed wetland for wastewater treatment.
Degree: MS, Water Resources Engineering, 2010, Oregon State University
URL: http://hdl.handle.net/1957/13780
► The City of Woodburn, Oregon's Wastewater Treatment Plant (WWTP) has been investigating several natural alternatives for improving effluent quality. Based on its current National Pollution…
(more)
▼ The City of Woodburn, Oregon's Wastewater Treatment Plant (WWTP) has been investigating several natural alternatives for improving effluent quality. Based on its current National Pollution Discharge Elimination System (NPDES) permit, the WWTP will require additional reduction of temperature and ammonia levels in the summer, especially in the critical month of September.
The present research focuses on the performance of a 0.15 ha
constructed pilot wetland during the summer and early fall of 2009. The wetland was intended to demonstrate the feasibility of using treatment
wetlands to lower temperature and ammonia during an annual operational period (approximately June through October).
Point sensors and a fiber optic distributed temperature sensor (DTS) were used to assess temperature treatment during the study. Infiltration was monitored to characterize the hydrogeologic behavior of the site. A wetland water budget was used to determine system-wide infiltration, and heat pulses applied to a subsurface fiber optic cable were used to assess infiltrative variability.
The results showed that temperature reduction in the pilot wetland was marginal over the study period. In the September critical month, significantly more treatment occurred in the WWTP storage lagoon than in the wetland (about 4°C cooling compared to 1.2°C in the wetland). Decreasing the hydraulic retention time from 2.5 to 0.5 days in mid-September did not change the average temperature treatment. DTS data demonstrated that all temperature reduction occurred in the first half of the wetland. Infiltration was greater than outflow for most of the study, and steadily decreased through time. The highest and lowest infiltration velocities were within a factor of 2, and this range also declined between November 2008 and June 2009. Potential explanations for decreasing infiltration include soil clogging and settling. The study showed the utility of DTS for assessing the spatial and temporal variability of infiltration processes.
Advisors/Committee Members: Selker, John S (advisor), Bolte, John P (committee member).
Subjects/Keywords: DTS; Constructed wetlands – Oregon – Woodburn
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APA ·
Chicago ·
MLA ·
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CSE |
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APA (6th Edition):
Gregory, C. T. (. T. (2010). Temperature and infiltration characterization of a constructed wetland for wastewater treatment. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/13780
Chicago Manual of Style (16th Edition):
Gregory, Christopher T (Christopher Thomas). “Temperature and infiltration characterization of a constructed wetland for wastewater treatment.” 2010. Masters Thesis, Oregon State University. Accessed April 14, 2021.
http://hdl.handle.net/1957/13780.
MLA Handbook (7th Edition):
Gregory, Christopher T (Christopher Thomas). “Temperature and infiltration characterization of a constructed wetland for wastewater treatment.” 2010. Web. 14 Apr 2021.
Vancouver:
Gregory CT(T. Temperature and infiltration characterization of a constructed wetland for wastewater treatment. [Internet] [Masters thesis]. Oregon State University; 2010. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1957/13780.
Council of Science Editors:
Gregory CT(T. Temperature and infiltration characterization of a constructed wetland for wastewater treatment. [Masters Thesis]. Oregon State University; 2010. Available from: http://hdl.handle.net/1957/13780
3.
Cosway, Katryn.
FATE AND EFFECT OF TRICLOSAN AND SULFAMETHOXAZOLE WITHIN
MESO-SCALE VERTICAL FLOW CONSTRUCTED WETLANDS.
Degree: MSc (MS/Maîtrise ès sciences), Chemistry and Chemical Engineering/Chimie et génie
chimique, 2014, Royal Military College of Canada
URL: http://hdl.handle.net/11264/161
► The presence of pharmaceuticals and personal care products are increasing in our natural environment due to their incomplete removal within traditional wastewater treatment plants. Constructed…
(more)
▼ The presence of pharmaceuticals and personal care
products are increasing in our natural environment due to their
incomplete removal within traditional wastewater treatment plants.
Constructed wetlands are used as secondary or tertiary wastewater
treatment and as such may receive both pharmaceuticals and personal
care products with subsequent implications for their treatment
efficacy. The aim of this study was to examine the fate and effects
of antimicrobials in planted and unplanted vertical flow
constructed wetlands. Twelve mesocosms were inoculated with
activated sludge from the Cataraqui Bay Wastewater Treatment Plant.
Six were planted with reed canary grass (Phalaris arundinacea) and
the remaining six were left unplanted. The wetland mesocosms were
assessed using a variety of parameters including water treatment
(chemical oxygen demand removal rate), hydrological (porosity,
evapotranspiration/evaporation) water quality (temperature, pH,
specific conductivity, dissolved oxygen, redox potential, total
dissolved solids), ecological (plant height and stem count), and
microbial community function (community level physiological
profiling).. Community-level physiological profiles were gathered
for the wetland microbial community using Biolog EcoplatesTM. The
development phase was initially characterized for all mesocosms
over a ninety-day period to establish ecological stability. The
microbial communities were then subjected to ex-situ, dose-response
exposures (0 – 1000 μg/L) for trimethoprim, triclosan and
sulfamethoxazole to gain an understanding of the ecotoxicity of
these antimicrobials. Following the ex-situ exposures, in-situ
exposures were performed with triclosan and sulfamethoxazole at low
(100 μg/L) and high (500 μg/L) concentrations. The low
concentration was selected based on literature reviews of the
levels found in water bodies and the high concentration was
selected to represent a shock-loading scenario. Hydrological,
ecological and microbial parameters were monitored before,
immediately after and over a recovery period of four weeks
following each exposure. During the developmental period both the
planted and unplanted mesocosms developed similarly and ecological
stability was established. However, a distinct microbial community
profile was observed in the planted mesocosms. In the ex-situ
dose-response experiments the effect of trimethoprim was negligible
on the planted microbial communities but with some removal of
microbial function for the unplanted microbial communities.
Triclosan exposure led to a moderate decline in microbial function
for both the planted and unplanted communities. Sulfamethoxazole
exposure led to a severe decline in microbial function in both the
planted and unplanted microbial communities, so much so that
negligible activity was observed at 1000 μg/L. Following the
in-situ low and high exposures of triclosan and sulfamethoxazole
there was a significant removal of the compounds (>80%) from the
mesocosm water column. The effects of both low and high triclosan
and sulfamethoxazole…
Advisors/Committee Members: Royal Military College of Canada / Collège militaire royal du Canada, Weber, Kela.
Subjects/Keywords: constructed wetlands; emerging contaminants
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cosway, K. (2014). FATE AND EFFECT OF TRICLOSAN AND SULFAMETHOXAZOLE WITHIN
MESO-SCALE VERTICAL FLOW CONSTRUCTED WETLANDS. (Masters Thesis). Royal Military College of Canada. Retrieved from http://hdl.handle.net/11264/161
Chicago Manual of Style (16th Edition):
Cosway, Katryn. “FATE AND EFFECT OF TRICLOSAN AND SULFAMETHOXAZOLE WITHIN
MESO-SCALE VERTICAL FLOW CONSTRUCTED WETLANDS.” 2014. Masters Thesis, Royal Military College of Canada. Accessed April 14, 2021.
http://hdl.handle.net/11264/161.
MLA Handbook (7th Edition):
Cosway, Katryn. “FATE AND EFFECT OF TRICLOSAN AND SULFAMETHOXAZOLE WITHIN
MESO-SCALE VERTICAL FLOW CONSTRUCTED WETLANDS.” 2014. Web. 14 Apr 2021.
Vancouver:
Cosway K. FATE AND EFFECT OF TRICLOSAN AND SULFAMETHOXAZOLE WITHIN
MESO-SCALE VERTICAL FLOW CONSTRUCTED WETLANDS. [Internet] [Masters thesis]. Royal Military College of Canada; 2014. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/11264/161.
Council of Science Editors:
Cosway K. FATE AND EFFECT OF TRICLOSAN AND SULFAMETHOXAZOLE WITHIN
MESO-SCALE VERTICAL FLOW CONSTRUCTED WETLANDS. [Masters Thesis]. Royal Military College of Canada; 2014. Available from: http://hdl.handle.net/11264/161

Oregon State University
4.
Niswander, Steven Francis.
Treatment of dairy wastewater in a constructed wetland system : evapotranspiration, hydrology, hydraulics, treatment performance, and nitrogen cycling processes.
Degree: PhD, Bioresource Engineering, 1997, Oregon State University
URL: http://hdl.handle.net/1957/34503
► Five unique but related studies were conducted at the Oregon State University Dairy Wetland Treatment System (OSUDWTS), Corvallis, OR. The research site consisted of six…
(more)
▼ Five unique but related studies were conducted at the Oregon State University Dairy
Wetland Treatment System (OSUDWTS), Corvallis, OR. The research site consisted of
six parallel wetland cells, which were built in 1992 and began receiving concentrated dairy
wastewater in the fall of 1993. Hydrologic, hydraulic, and water quality data were
collected at the site for three years. The five resulting studies were:
1. the prediction of evapotranspiration (ET) from
wetlands;
2. the development of a hydrologic model and water budget for the OSUDWTS;
3. a preliminary investigation of the hydraulics of the OSUDWTS;
4. an overall evaluation of the treatment performance of the OSUDWTS and
applicability of current
constructed wetland design methods to livestock
wastewater
wetlands; and
5. the development of a conceptual model for nitrogen removal in
constructed
wetlands.
Average ET rates for the wetland cells were found to be 1.6 times as great as the Penman-
Monteith alfalfa reference ET. Specific crop coefficients were 1.72, 2.32, and 0.57 for
bulrush, cattails, and floating grass mats. The detailed hydrology model predicted daily
water levels very accurately (R²=0.95) and showed seasonal rainfall and ET could
increase or decrease the average detention time by as much as 18%.
Tracer studies indicated that non ideal flow existed in the
wetlands. Actual
detention times were found to be an average of 43% shorter than theoretical detention
times. Tank-in-series and plug flow modified by dispersion models were inadequate at
describing the observed tracer response.
Constructed wetlands were shown to be able to reduce a high percentage of most
waste constituents in concentrated livestock wastewaters. Average reductions for COD,
BOD, TS, TSS, TP, TKN, NH₃ and fecal coliforms were 45, 52, 27, 55, 42, 41, 37 and
80%, respectively. Rate constants for volumetric and areal first-order plug flow models
were found for each wastewater constituent. Overall, both models were fair at predicting
wastewater reduction at the OSUDWTS.
A conceptual model of nitrogen cycling showed denitrification to be the most
important process for nitrogen removal in
constructed wetlands. However, low dissolved
oxygen in
constructed wetlands limits nitrification, which in turn limits denitrification.
Advisors/Committee Members: Moore, James A. (advisor), English, Marshall (committee member).
Subjects/Keywords: Constructed wetlands
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Niswander, S. F. (1997). Treatment of dairy wastewater in a constructed wetland system : evapotranspiration, hydrology, hydraulics, treatment performance, and nitrogen cycling processes. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/34503
Chicago Manual of Style (16th Edition):
Niswander, Steven Francis. “Treatment of dairy wastewater in a constructed wetland system : evapotranspiration, hydrology, hydraulics, treatment performance, and nitrogen cycling processes.” 1997. Doctoral Dissertation, Oregon State University. Accessed April 14, 2021.
http://hdl.handle.net/1957/34503.
MLA Handbook (7th Edition):
Niswander, Steven Francis. “Treatment of dairy wastewater in a constructed wetland system : evapotranspiration, hydrology, hydraulics, treatment performance, and nitrogen cycling processes.” 1997. Web. 14 Apr 2021.
Vancouver:
Niswander SF. Treatment of dairy wastewater in a constructed wetland system : evapotranspiration, hydrology, hydraulics, treatment performance, and nitrogen cycling processes. [Internet] [Doctoral dissertation]. Oregon State University; 1997. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1957/34503.
Council of Science Editors:
Niswander SF. Treatment of dairy wastewater in a constructed wetland system : evapotranspiration, hydrology, hydraulics, treatment performance, and nitrogen cycling processes. [Doctoral Dissertation]. Oregon State University; 1997. Available from: http://hdl.handle.net/1957/34503

University of Vermont
5.
Twohig, Eamon.
Evaluating Methane Emissions from Dairy Treatment Materials in a Cold Climate.
Degree: MS, Plant and Soil Science, 2012, University of Vermont
URL: https://scholarworks.uvm.edu/graddis/231
► Treating elevated nutrients, suspended solids, oxygen demanding materials, heavy metals and chemical fertilizers and pesticides in agricultural wastewaters is necessary to protect surface and ground…
(more)
▼ Treating elevated nutrients, suspended solids, oxygen demanding materials, heavy metals and chemical fertilizers and pesticides in agricultural wastewaters is necessary to protect surface and ground waters.
Constructed wetlands (CWs) are an increasingly important technology to remediate wastewaters and reduce negative impacts on water quality in agricultural settings. Treatment of high strength effluents typical of agricultural operations results in the production of methane (CH4), a potent greenhouse trace gas. The objective of this study was to evaluate CH4 emissions from two subsurface flow (SSF) CWs (223 m2 each) treating dairy wastewater. The CWs were implemented at the University of Vermont Paul Miller Dairy Farm in 2003 as an alternative nutrient management approach for treating mixed dairy farm effluent (barnyard runoff and milk parlor waste) in a cold, northern climate. In 2006, static collars were installed throughout the inlet, mid and outlet zones of two CWs (aerated (CW1) and a non-aerated (CW2)) connected in-series, and gas samples were collected via non-steady state chambers (19.75 L) over a nine-month period (Feb-Oct 2007). Methane flux densities were variable throughout the nine-month study period, ranging from 0.026 to 339 and 0.008 to 165 mg m-2 h-1 in CW1 and CW2, respectively. The average daily CH4 flux of CW1 and CW2 were 1475 and 552 mg m-2 d-1, respectively. Average CH4 flux of CW1 was nearly threefold greater than that of CW2 (p = .0387) across all three seasons. The in-series design may have confounded differences in CH4 flux between CWs by limiting differences in dissolved oxygen and by accentuating differences in carbon loading. Methane flux densities revealed strong spatial and seasonal variation within CWs. Emissions generally decreased from inlet to outlet in both CWs. Average CW1 CH4 flux of the inlet zone was nearly threefold greater than mid zone and over tenfold greater than flux at the outlet, while fluxes for CW2 zones were not statistically different. Methane flux of CW1 was nearly fifteen fold greater than CW2 during the fall, representing the only season during which flux was statistically different (p = .0082) between CWs. Fluxes differed significantly between seasons for both CW1 (p = .0034) and CW2 (p = .0002). CH4 emissions were greatest during the spring season in both CWs, attributed to a consistently high water table observed during this season. Vegetation was excluded from chambers during GHG monitoring, and considering that the presence of vascular plants is an important factor influencing CH4 flux, the potential CH4 emissions reported in our study could be greatly underestimated. However, our reported average CH4 fluxes are comparable to published data from SSF dairy treatment CWs. We estimate average and maximum daily emissions from the entire CW system (892 m2) at approximately 1.11 and 6.33 kg CH4 d-1, respectively, yielding an annual average and maximum flux of 8.51 and 48.5 MtCO2-e y-1, respectively.
Advisors/Committee Members: Drizo, Aleksandra.
Subjects/Keywords: Methane; Constructed wetlands; agricultural wastewater
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Twohig, E. (2012). Evaluating Methane Emissions from Dairy Treatment Materials in a Cold Climate. (Thesis). University of Vermont. Retrieved from https://scholarworks.uvm.edu/graddis/231
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Twohig, Eamon. “Evaluating Methane Emissions from Dairy Treatment Materials in a Cold Climate.” 2012. Thesis, University of Vermont. Accessed April 14, 2021.
https://scholarworks.uvm.edu/graddis/231.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Twohig, Eamon. “Evaluating Methane Emissions from Dairy Treatment Materials in a Cold Climate.” 2012. Web. 14 Apr 2021.
Vancouver:
Twohig E. Evaluating Methane Emissions from Dairy Treatment Materials in a Cold Climate. [Internet] [Thesis]. University of Vermont; 2012. [cited 2021 Apr 14].
Available from: https://scholarworks.uvm.edu/graddis/231.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Twohig E. Evaluating Methane Emissions from Dairy Treatment Materials in a Cold Climate. [Thesis]. University of Vermont; 2012. Available from: https://scholarworks.uvm.edu/graddis/231
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Colorado State University
6.
Hollowed, Margaret Ellen.
Free water surface and horizontal subsurface flow constructed wetlands: a comparison of performance in treating domestic graywater.
Degree: MS(M.S.), Civil and Environmental Engineering, 2012, Colorado State University
URL: http://hdl.handle.net/10217/74433
► Communities throughout the United States and abroad are seeking innovative approaches to sustaining their freshwater resources. Graywater reuse for non-potable demands is gaining popularity because…
(more)
▼ Communities throughout the United States and abroad are seeking innovative approaches to sustaining their freshwater resources. Graywater reuse for non-potable demands is gaining popularity because it allows for the reuse of minimally contaminated wash water, generated and treated on site. Graywater is defined as any wastewater generated at the home or office including wastewater from the laundry, shower, and bathroom sinks but excluding water from the toilets, kitchen sinks, and dishwasher. When compared to other wastewater generated in the home, graywater is contaminated with lower concentrations of organics, solids, nutrients, and pathogens. These characteristics make the water suitable for reuse with negligible treatment when compared to other domestic wastewater sources. Graywater reuse for non-potable demands reduces the demand for treated water and preserves source waters. One method of treating graywater at a community scale for irrigation reuse is
constructed wetlands. Despite widespread interest in this innovative approach, limited guidance is available on the design and operation of
constructed wetlands specific to graywater treatment. The foremost objective of this research was to compare the performance of a free water surface
constructed wetland (FWS) to a horizontal subsurface
constructed wetland (SF) for graywater treatment and to assess their ability to meet water quality standards for surface discharge and reuse. This was done by comparison of percent (%) mass removal rates and requisite surface areas (SA) based on determined removal rates ( k ). Aerial loading rates were compared to EPA suggested aerial loading rates in an attempt to provide recommendations for target effluent concentrations. Determining contaminant removal rates is important for creating wetland design standards for graywater treatment and reuse. Contaminant removal rates were evaluated over the summer and fall of 2010 and 2011 for a SF wetland. These removal rates were compared to the removal rates evaluated over a two year period (2008-2010) for a FWS wetland. Another objective was to determine the % mass removal of three common anionic surfactants in
constructed wetlands (both FWS and SF) and finally, the possibility of incorporating
constructed wetlands into greenhouse community garden centers as an option to reduce the losses resulting from evapotranspiration (ET) in arid climates was explored briefly. The results indicate that SF
wetlands provide relatively stable and more efficient treatment year round when compared to FWS
wetlands. In particular, the SF wetland showed statistically significant higher mass removal of both biological oxygen demand (BOD5 ) and total nitrogen (TN) than the FWS wetland during winter months (P=0.1 and 0.005; α=0.1). When all the seasons were compared for each wetland individually there was a statistically significant degree of removal for BOD5 and TN between the seasons in the FWS wetland (P=0.09 and 0.04; α=0.1) while there was none in the SF wetland (P=1.0 and 0.9; α=0.1). These results are…
Advisors/Committee Members: Sharvelle, Sybil E. (advisor), Roesner, Larry A. (committee member), Stromberger, Mary (committee member).
Subjects/Keywords: constructed wetlands; water reuse; graywater
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hollowed, M. E. (2012). Free water surface and horizontal subsurface flow constructed wetlands: a comparison of performance in treating domestic graywater. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/74433
Chicago Manual of Style (16th Edition):
Hollowed, Margaret Ellen. “Free water surface and horizontal subsurface flow constructed wetlands: a comparison of performance in treating domestic graywater.” 2012. Masters Thesis, Colorado State University. Accessed April 14, 2021.
http://hdl.handle.net/10217/74433.
MLA Handbook (7th Edition):
Hollowed, Margaret Ellen. “Free water surface and horizontal subsurface flow constructed wetlands: a comparison of performance in treating domestic graywater.” 2012. Web. 14 Apr 2021.
Vancouver:
Hollowed ME. Free water surface and horizontal subsurface flow constructed wetlands: a comparison of performance in treating domestic graywater. [Internet] [Masters thesis]. Colorado State University; 2012. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/10217/74433.
Council of Science Editors:
Hollowed ME. Free water surface and horizontal subsurface flow constructed wetlands: a comparison of performance in treating domestic graywater. [Masters Thesis]. Colorado State University; 2012. Available from: http://hdl.handle.net/10217/74433

Montana State University
7.
Moss, Jefferson Jack, IV.
Operation and optimization of a two-stage, vertical flow constructed wetland system at Bridger Bowl Ski Area.
Degree: MS, College of Engineering, 2016, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/13802
► Treatment wetlands are an internationally accepted technology for treatment of domestic wastewater and modern designs have become the preferred option for small communities in several…
(more)
▼ Treatment
wetlands are an internationally accepted technology for treatment of domestic wastewater and modern designs have become the preferred option for small communities in several European countries for their ability to produce a high quality effluent. To evaluate performance of modern treatment wetland designs with respect to carbon and nitrogen removal in Montana and other challenging contexts, a two-stage, vertical flow system with recycle capabilities has been
constructed and tested at a ski area near Bozeman, Montana. Site climatic and operational conditions provide a 'worst-case' scenario to test the efficacy of treatment
wetlands in Montana. Intensive sampling of influent and effluent concentrations of chemical oxygen demand (COD) and nitrogen containing compounds after the second season of plant growth is used to optimize and correlate performance as influenced by loading rate, dose volume, and recycle ratio. COD removal was greater than 90% and increased linearly with loading rate even when loading rate exceeded European design guidelines by nearly a factor of 10, with effluent concentrations approximately 100 mg·L -1. The system was also able to nitrify and denitrify. With the use of water recycling, effluent could be optimized for complete removal of ammonium and total nitrogen removal around 50%, even though influent concentrations were approximately 4 times greater than typical domestic wastewater. Mass removal rates were as high as 20 g-N·m-2·day -1, higher than expected based on European guidelines. These results indicate that treatment
wetlands are capable of high nitrogen and organic carbon removal, even when applied at a high concentrations, low temperatures, and variable flow situations.
Advisors/Committee Members: Chairperson, Graduate Committee: Otto Stein (advisor).
Subjects/Keywords: Constructed wetlands; Research; Carbon; Nitrogen
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Moss, Jefferson Jack, I. (2016). Operation and optimization of a two-stage, vertical flow constructed wetland system at Bridger Bowl Ski Area. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/13802
Chicago Manual of Style (16th Edition):
Moss, Jefferson Jack, IV. “Operation and optimization of a two-stage, vertical flow constructed wetland system at Bridger Bowl Ski Area.” 2016. Masters Thesis, Montana State University. Accessed April 14, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/13802.
MLA Handbook (7th Edition):
Moss, Jefferson Jack, IV. “Operation and optimization of a two-stage, vertical flow constructed wetland system at Bridger Bowl Ski Area.” 2016. Web. 14 Apr 2021.
Vancouver:
Moss, Jefferson Jack I. Operation and optimization of a two-stage, vertical flow constructed wetland system at Bridger Bowl Ski Area. [Internet] [Masters thesis]. Montana State University; 2016. [cited 2021 Apr 14].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/13802.
Council of Science Editors:
Moss, Jefferson Jack I. Operation and optimization of a two-stage, vertical flow constructed wetland system at Bridger Bowl Ski Area. [Masters Thesis]. Montana State University; 2016. Available from: https://scholarworks.montana.edu/xmlui/handle/1/13802

Montana State University
8.
Allen, Christopher Robert.
Nitrogen removal and associated greenhouse gas production in laboratory-scale treatment wetlands.
Degree: PhD, College of Engineering, 2016, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/9964
► Treatment wetlands (TWs) are designed to treat domestic wastewater and water polluted from non-point sources such as agricultural runoff. Because many recent design improvements have…
(more)
▼ Treatment
wetlands (TWs) are designed to treat domestic wastewater and water polluted from non-point sources such as agricultural runoff. Because many recent design improvements have increased aerobic removal pathways, nearly complete removal of biological oxygen demand (BOD) and oxidation of ammonium to nitrate in domestic wastewater is possible. These improvements have come at the expense of reducing the TW capacity to remove nitrate. Nitrate is also a main pollutant of concern in many non-point pollution sources. Organic carbon (OC) is a limiting factor for microbial nitrate removal and in
wetlands can be supplied externally or provided by plants. Nitrate removal has the potential to release greenhouse gases (GHG) resulting in TWs being capable of acting as a net source or sink for GHG. Increasing our understanding of nitrogen removal and GHG production in TWs is the overarching goal of this project. A multi-year controlled environment greenhouse study measured water quality within 15-day incubations over annual cycles of temperature as well as greenhouse gas production at the seasonal extremes of the annual cycle. The experiment consisted of microcosms planted with either Carex utriculata, Deschampsia cespitosa, Phragmites australis, Schoenoplectus acutus, Typha latifolia or left unplanted. The fully factorial experiment also included three levels of OC addition, ranging from zero to two times the stoichiometric equivalent required for complete nitrogen removal. Nitrogen removal was affected by all experimental factors; plant species, OC addition, and temperature, with plant species mediating the effects of carbon and temperature in some treatments. The three highest performing species, C. utriculata, P. australis and S. acutus, removed nitrogen at an annual rate exceeding 166 g m -2 yr -1, without OC; only C. utriculata showed less N removal in winter. Incubation time series analysis indicated greater total and seasonal removal capacity for these plant treatments. Total GHG emission was dominated by summer CO 2 emission and varied by plant treatment and carbon load. CO 2 emission correlated negatively with OC addition in the high performing species attributable to plant biomass that decreased with OC addition. N 2O production significantly increased with the addition of organic carbon and did not vary significantly by season.
Advisors/Committee Members: Chairperson, Graduate Committee: Otto Stein (advisor), Mark D. Burr, Anne K. Camper, Jefferson J. Moss and Otto R. Stein were co-authors of the article, 'Plant influence on denitrification in treatment wetlands' submitted to the journal 'Water research' which is contained within this thesis. (other), Mark D. Burr, Anne K. Camper, Jefferson J. Moss and Otto R. Stein were co-authors of the article, 'Influence of plants and organic carbon addition on greenhouse gas emissions from model treatment wetlands' submitted to the journal 'Environmental science and technology' which is contained within this thesis. (other), Otto R. Stein was a co-author of the article, 'Empirical modeling of plant influence and organic carbon addition on nitrogen removal in treatment wetlands' submitted to the journal 'Ecological engineering' which is contained within this thesis. (other).
Subjects/Keywords: Greenhouse gases; Constructed wetlands; Denitrification
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MLA ·
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CSE |
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APA (6th Edition):
Allen, C. R. (2016). Nitrogen removal and associated greenhouse gas production in laboratory-scale treatment wetlands. (Doctoral Dissertation). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/9964
Chicago Manual of Style (16th Edition):
Allen, Christopher Robert. “Nitrogen removal and associated greenhouse gas production in laboratory-scale treatment wetlands.” 2016. Doctoral Dissertation, Montana State University. Accessed April 14, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/9964.
MLA Handbook (7th Edition):
Allen, Christopher Robert. “Nitrogen removal and associated greenhouse gas production in laboratory-scale treatment wetlands.” 2016. Web. 14 Apr 2021.
Vancouver:
Allen CR. Nitrogen removal and associated greenhouse gas production in laboratory-scale treatment wetlands. [Internet] [Doctoral dissertation]. Montana State University; 2016. [cited 2021 Apr 14].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/9964.
Council of Science Editors:
Allen CR. Nitrogen removal and associated greenhouse gas production in laboratory-scale treatment wetlands. [Doctoral Dissertation]. Montana State University; 2016. Available from: https://scholarworks.montana.edu/xmlui/handle/1/9964

Montana State University
9.
Spengler, Justin Warren.
Denitrification at the microscale in treatment wetlands.
Degree: MS, College of Engineering, 2015, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/12741
► Treatment wetlands (TWs) have been in use for over three decades for wastewater treatment, agricultural water treatment, and some industrial wastes. Thousands of TWs exist…
(more)
▼ Treatment
wetlands (TWs) have been in use for over three decades for wastewater treatment, agricultural water treatment, and some industrial wastes. Thousands of TWs exist for treating wastewater globally, but the microbial processes and controls in situ primarily responsible for water treatment are poorly understood. In this study, 16 separate model TW columns consisting of three plant groups and one non-planted group were fed synthetic post-secondary wastewater with half receiving no added carbon and half receiving 0.391 g L -1 as sucrose. Core samples were taken from each of the TW columns and separated into three distinct habitats (roots, gravel, particulates). Each habitat was assayed for its ability to produce N 2O, consume N 2O, and emit N 2O, as well as for denitrification gene abundances (nirS, nirK, and nosZ) and bacterial gene abundance (16S rDNA). The addition of organic carbon to the wetland was found to increase denitrification activity and gene copy abundance in non-root fractions, but organic carbon addition did not affect the root fraction. Plant presence within the TW was found to increase gas assay and gene abundance values in non-root habitats. Differences between three plant species were minor compared to differences attributed to carbon addition and plant presence. Of all habitats, gravel was found to have the highest denitrification activity and denitrification gene copy abundance relative to the number of 16S rDNA copies, as well as the highest ratio of N 2O produced to N 2O emitted. Implications for this study suggest the gravel and root fractions should be studied in further detail for their ability to accommodate denitrifying microbes.
Advisors/Committee Members: Chairperson, Graduate Committee: Robin Gerlach, Anne Camper (co-chair) (advisor).
Subjects/Keywords: Constructed wetlands; Denitrification; Sewage – Purification
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Spengler, J. W. (2015). Denitrification at the microscale in treatment wetlands. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/12741
Chicago Manual of Style (16th Edition):
Spengler, Justin Warren. “Denitrification at the microscale in treatment wetlands.” 2015. Masters Thesis, Montana State University. Accessed April 14, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/12741.
MLA Handbook (7th Edition):
Spengler, Justin Warren. “Denitrification at the microscale in treatment wetlands.” 2015. Web. 14 Apr 2021.
Vancouver:
Spengler JW. Denitrification at the microscale in treatment wetlands. [Internet] [Masters thesis]. Montana State University; 2015. [cited 2021 Apr 14].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/12741.
Council of Science Editors:
Spengler JW. Denitrification at the microscale in treatment wetlands. [Masters Thesis]. Montana State University; 2015. Available from: https://scholarworks.montana.edu/xmlui/handle/1/12741

University of KwaZulu-Natal
10.
Naidoo, Nivarya.
The ecological and functional assessment of wetlands : case study of a constructed wetland, Dundee, KwaZulu-Natal.
Degree: 2018, University of KwaZulu-Natal
URL: https://researchspace.ukzn.ac.za/handle/10413/16398
► This dissertation focused on the constructed wetland at a disused coal mine in Dundee, KwaZulu-Natal. A sequence of 10 wetland cells was constructed by the…
(more)
▼ This dissertation focused on the
constructed wetland at a disused coal mine in Dundee, KwaZulu-Natal. A sequence of 10 wetland cells was
constructed by the Department of Water and Sanitation (DWS) to remediate seepage from the mine. The main aspects that this dissertation is focused on are the water quality and geochemistry of the wetland; the ability of the wetland in providing ecological goods and services, and the rehabilitation of the wetland system.
The results of the water quality analysis revealed that the water in the system is of inferior quality. Several of the parameters exceeded South African water quality standards indicating that the water is detrimental to aquatic health and neither is it suitable for human consumption. The geochemical analysis revealed that whilst heavy metals are present in the sediments the enrichment factor (EF) values are low although certain elements may be bioavailable. This possibility is enhanced by the predominance of larger grained sediment which have low adsorption capacities, allowing for relatively easy remobilisation into the water column. PCA analysis indicated a predominance of some heavy metals in the wetland cells but that this was influenced by anthropogenic impacts via discard coal. The ability of the wetland system in providing ecosystem goods and services was found to be compromised due to the wetland being in a state of malfunction.
The final part of this dissertation comprises of a proposed rehabilitation plan for the
constructed wetland. The rehabilitation plan focuses on the causes of degradation of the system due to the prolonged lack of maintenance and monitoring resulting in dysfunctional connectivity of wetland cells; inhibition of wetland conditions; the proliferation of terrestrial and alien invasive plants and, the inappropriate original structural composition of the basal sediments used which initially would have worked counter to the original intention to reduce acidity of mine derived groundwater. The rehabilitation plan is intended to aid in the re-establishment of hydrological, geomorphological and ecological processes in the wetland system.
Advisors/Committee Members: Pillay, Srinivasan Seeni. (advisor), Naidoo, Kubendran Kista. (advisor).
Subjects/Keywords: Wetlands.; Constructed wetlands.; Water quality.; Geochemistry.
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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Manager
APA (6th Edition):
Naidoo, N. (2018). The ecological and functional assessment of wetlands : case study of a constructed wetland, Dundee, KwaZulu-Natal. (Thesis). University of KwaZulu-Natal. Retrieved from https://researchspace.ukzn.ac.za/handle/10413/16398
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Naidoo, Nivarya. “The ecological and functional assessment of wetlands : case study of a constructed wetland, Dundee, KwaZulu-Natal.” 2018. Thesis, University of KwaZulu-Natal. Accessed April 14, 2021.
https://researchspace.ukzn.ac.za/handle/10413/16398.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Naidoo, Nivarya. “The ecological and functional assessment of wetlands : case study of a constructed wetland, Dundee, KwaZulu-Natal.” 2018. Web. 14 Apr 2021.
Vancouver:
Naidoo N. The ecological and functional assessment of wetlands : case study of a constructed wetland, Dundee, KwaZulu-Natal. [Internet] [Thesis]. University of KwaZulu-Natal; 2018. [cited 2021 Apr 14].
Available from: https://researchspace.ukzn.ac.za/handle/10413/16398.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Naidoo N. The ecological and functional assessment of wetlands : case study of a constructed wetland, Dundee, KwaZulu-Natal. [Thesis]. University of KwaZulu-Natal; 2018. Available from: https://researchspace.ukzn.ac.za/handle/10413/16398
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Kansas
11.
Lee, Hyunjung.
Nutrient Removal in Constructed Wetlands Treating Agricultural Tile Drainage.
Degree: MS, Civil, Environmental & Architectural Engineering, 2016, University of Kansas
URL: http://hdl.handle.net/1808/22351
► Agricultural runoff can carry substantial loadings of nitrogen and phosphorus that can impact local surface water quality and contribute to impairment of water bodies further…
(more)
▼ Agricultural runoff can carry substantial loadings of nitrogen and phosphorus that can impact local surface water quality and contribute to impairment of water bodies further downstream. Subsurface tile drainage, a drainage water management practice commonly used in the Midwest, is known to contribute to elevated levels of these contaminants. Strategies to improve drainage water quality must be implemented in a way that minimally impacts land utilization and crop yield. In this study, three
constructed wetlands were utilized to treat runoff from tile outlet terrace (TOT) agricultural fields managed under either a no-till corn-soybean rotation with wheat prior to soybean, or a no-till soybean crop. Nutrient and sediment removal efficiencies and runoff impact on receiving streams were determined during two growing seasons in 2014 and 2015. Water samples were collected with an auto-sampler at the wetland influent and effluent locations at Harvest Hills North (HHN/site 1), Harvest Hills Middle (HHM/site2), and Dan Cain site (Cain/site3). Using stream bottles, samples were also collected from two local streams that receive TOT runoff during and after storm events. Over the two years, changes in nutrient and sediment loads to the
wetlands were observed. Runoff quality was affected by changes in crop type, fertilizer application rate, and precipitation pattern, frequency and intensity. During the two growing seasons, TOT runoff was responsible for 99.5, 71.2 and 197.7 kg of TN entering the
wetlands at sites 1, 2 and 3, respectively, of which 67.7, 59.3 and 93.8 kg exited the system in the wetland effluent (32, 17 and 53% load removal). For TP, approximately 16.54, 8.75 and 45.18 kg entered the
wetlands, of which 10.24, 5.25 and 19.67 kg exited (38, 40 and 56% removal). For total suspended solids (TSS), roughly 14793, 4023 and 64624 kg entered, of which 4824, 1748 and 10876 kg exited (67, 57 and 83% removal). Compared to the year with soybean crop coverage (2014) at the sites with a no-till corn-soybean rotation (sites 1 and 2), higher sediment concentration in TOT runoff was observed at the site with a no-till soybean crop both years (site3). The wetlands’ performance was typically better with higher influent concentrations, although the wetland design and inflow volume also seemed to contribute as well. Variations in behavior between two similar
wetlands (sites 1 and 2) were likely due to differences in seepage rates and flow distribution through the
wetlands, which is believed to have changed as sediments built up near the influent discharge pipe at site 1. Stream monitoring results showed that median concentrations of TN and TP were higher than the benchmark values for streams in U.S. EPA Region 7, with no measureable impact from either the treated (wetland effluent) or the untreated runoff. Potential reasons for why no significant impact to stream quality was observed are the relatively low volume of discharge relative to stream flow, and the relatively high stream levels of nutrients and sediments even upstream of the…
Advisors/Committee Members: Peltier, Edward F (advisor), Young, C Bryan (cmtemember), Carter Jr., Ray E (cmtemember).
Subjects/Keywords: Environmental engineering; constructed wetlands; nutrient removal; treatment wetlands; wetlands
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lee, H. (2016). Nutrient Removal in Constructed Wetlands Treating Agricultural Tile Drainage. (Masters Thesis). University of Kansas. Retrieved from http://hdl.handle.net/1808/22351
Chicago Manual of Style (16th Edition):
Lee, Hyunjung. “Nutrient Removal in Constructed Wetlands Treating Agricultural Tile Drainage.” 2016. Masters Thesis, University of Kansas. Accessed April 14, 2021.
http://hdl.handle.net/1808/22351.
MLA Handbook (7th Edition):
Lee, Hyunjung. “Nutrient Removal in Constructed Wetlands Treating Agricultural Tile Drainage.” 2016. Web. 14 Apr 2021.
Vancouver:
Lee H. Nutrient Removal in Constructed Wetlands Treating Agricultural Tile Drainage. [Internet] [Masters thesis]. University of Kansas; 2016. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1808/22351.
Council of Science Editors:
Lee H. Nutrient Removal in Constructed Wetlands Treating Agricultural Tile Drainage. [Masters Thesis]. University of Kansas; 2016. Available from: http://hdl.handle.net/1808/22351

Humboldt State University
12.
Simpson, Nicholas P.
The potential impact on mosquito larvae by threespine stickleback (Gasterosteus aculeatus) and mosquitofish (Gambusia affinis) in four constructed wetlands.
Degree: MS, Fisheries: Wastewater Utilization, 2008, Humboldt State University
URL: http://hdl.handle.net/2148/424
► Mosquitofish (Gambusia affinis Baird and Girard) and threespine stickleback (Gasterosteus aculeatus) thrive in freshwater marsh habitats, in places where mosquito (Culicidae) larvae occur. This study…
(more)
▼ Mosquitofish (Gambusia affinis Baird and Girard) and threespine stickleback (Gasterosteus aculeatus) thrive in freshwater marsh habitats, in places where mosquito (Culicidae) larvae occur. This study assessed the potential impacts of mosquitofish (Gambusia affinis) and threespine stickleback (Gasterosteus aculeatus) on mosquito and other macroinvertebrate communities living in
constructed wetland Hydrocotyle beds. Littoral macrofauna was collected at 48 sites within Allen, Gearheart, Hauser, and Aldergrove marshes in Arcata, California. Sites were sampled every two weeks from May through September of 2005 for fish and available prey by utilizing minnow traps and a 1 liter dipper. Stomach samples of juvenile and adult threespine stickleback and mosquitofish were compared with abundance and seasonal changes of potential prey to determine monthly diet preferences. Niche overlap value (Cxy (0.33)) demonstrated that little overlap was occurring in diet between both species. In addition, both species were utilizing potential prey items in proportion to their abundance. As mosquito larvae and other prey densities increased, both stickleback and mosquitofish diversified their prey selection to include a variety of prey. However, during this diversification in
prey selection, mosquitofish exhibited a Type III feeding response to mosquito larvae, while stickleback showed no clear response to the increase of mosquitoes. This difference in feeding response is likely due to concentration of predator search in the preferred habitat of the prey, palatability, prey vulnerability, and response to other prey items. The lack of predation on mosquito larvae, coupled with periodic consumption of mosquito larvae predators such as Dytiscidae, show stickleback would be inadequate as a biological control agent of mosquitoes in
constructed wetlands. Mosquitofish significantly consumed mosquito larvae more than any other prey (p < 0.05), and consumed significantly greater numbers of mosquito larvae than stickleback when stomach samples from all marshes were examined. The positively correlated mosquitofish feeding response to increased numbers of mosquito larvae, especially in Allen Marsh, makes this fish a good choice for biological control of mosquitoes in heavily vegetated
wetlands.
Advisors/Committee Members: Brenneman, Kristine.
Subjects/Keywords: Mosquito control; Constructed wetlands; Mosquitofish; Stickleback
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APA ·
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MLA ·
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CSE |
Export
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Manager
APA (6th Edition):
Simpson, N. P. (2008). The potential impact on mosquito larvae by threespine stickleback (Gasterosteus aculeatus) and mosquitofish (Gambusia affinis) in four constructed wetlands. (Masters Thesis). Humboldt State University. Retrieved from http://hdl.handle.net/2148/424
Chicago Manual of Style (16th Edition):
Simpson, Nicholas P. “The potential impact on mosquito larvae by threespine stickleback (Gasterosteus aculeatus) and mosquitofish (Gambusia affinis) in four constructed wetlands.” 2008. Masters Thesis, Humboldt State University. Accessed April 14, 2021.
http://hdl.handle.net/2148/424.
MLA Handbook (7th Edition):
Simpson, Nicholas P. “The potential impact on mosquito larvae by threespine stickleback (Gasterosteus aculeatus) and mosquitofish (Gambusia affinis) in four constructed wetlands.” 2008. Web. 14 Apr 2021.
Vancouver:
Simpson NP. The potential impact on mosquito larvae by threespine stickleback (Gasterosteus aculeatus) and mosquitofish (Gambusia affinis) in four constructed wetlands. [Internet] [Masters thesis]. Humboldt State University; 2008. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/2148/424.
Council of Science Editors:
Simpson NP. The potential impact on mosquito larvae by threespine stickleback (Gasterosteus aculeatus) and mosquitofish (Gambusia affinis) in four constructed wetlands. [Masters Thesis]. Humboldt State University; 2008. Available from: http://hdl.handle.net/2148/424

Texas A&M University
13.
Bustamante, Jorge Bernardo.
Evaluation and Performance of a Constructed Wetland for Stormwater Management.
Degree: MS, Biological and Agricultural Engineering, 2016, Texas A&M University
URL: http://hdl.handle.net/1969.1/158916
► The Dickinson Bayou Watershed has several water bodies impaired by high fecal coliform counts and low oxygen levels. Total Maximum Daily Loads (TMDL) were developed…
(more)
▼ The Dickinson Bayou Watershed has several water bodies impaired by high fecal coliform counts and low oxygen levels. Total Maximum Daily Loads (TMDL) were developed to estimate the maximum amounts of Escherichia coli (E. coli) the tributaries to Dickinson Bayou could receive and still meet water quality standards. As part of the Dickinson Bayou Watershed Protection Plan, the Clear Creek Independent School District (CCISD) in League City, Texas, together with the Texas Coastal Watershed Program (TCWP-part of TAMU) office, retrofitted a detention pond in the their Education Village into a
constructed wetland. This research seeks to evaluate the retrofitted
constructed wetland effectiveness in reducing effluent loads of E. coli and how it compares to the potential load reduction estimated in the Total Maximum Daily Load (TMDL). Inflow into the wetland was quantified using the SCS Curve Number method and outflow was quantified using the stage-storage curve based on the change of the water level in the wetland. Inflow and outflow water samples were collected using ISCO samplers and tested with 3M
TM E. coli/ Coliform Petrifilm
TM. E. coli concentrations were analyzed following the methods outlined by the International BMP Database and using the XLSTAT software. The statistical analysis included descriptive statistics and parametric and non-parametric hypothetical testing. The results showed a median E. coli inflow concentration of 5,987 CFU/100ml and a median outflow concentration of 1,500 CFU/100ml. The normalized E. coli load was calculated to be 2.0 x 10
10 CFU/acrexyr. A comparison to similar BMPs using lognormal probability plots showed the Education village compared favorably at high inflow concentrations, but had a higher minimum achievable concentration. The analysis of BMP performance data is often complex and challenging. Due to the limitations of this study there are a many avenues of further research. First, the influent E. coli concentrations were significantly higher than comparable watersheds. Considering the Education Village watershed only contains institutional facilities, high E. coli concentrations were not expected. Another possible investigation could involve taking a more detailed hydrograph and pollutograph. Moreover, more studies at other BMPs are needed for a better comparison of treatment performance, especially at detention basins. Finally, while this research highlights the possibility of a loading reduction that is lower than the WPP estimate, more research is needed to confirm that estimate.
Advisors/Committee Members: Munster, Clyde L (advisor), Jacob, John S (committee member), Jaber, Fouad H (committee member).
Subjects/Keywords: constructed wetlands; stormwater BMP; E. Coli
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bustamante, J. B. (2016). Evaluation and Performance of a Constructed Wetland for Stormwater Management. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/158916
Chicago Manual of Style (16th Edition):
Bustamante, Jorge Bernardo. “Evaluation and Performance of a Constructed Wetland for Stormwater Management.” 2016. Masters Thesis, Texas A&M University. Accessed April 14, 2021.
http://hdl.handle.net/1969.1/158916.
MLA Handbook (7th Edition):
Bustamante, Jorge Bernardo. “Evaluation and Performance of a Constructed Wetland for Stormwater Management.” 2016. Web. 14 Apr 2021.
Vancouver:
Bustamante JB. Evaluation and Performance of a Constructed Wetland for Stormwater Management. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1969.1/158916.
Council of Science Editors:
Bustamante JB. Evaluation and Performance of a Constructed Wetland for Stormwater Management. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/158916

University of the Western Cape
14.
Welz, Pamela Jean.
Manipulating biotic and abiotic factors to enhance the remediation of agri-industrial wastewater in pilot-scale constructed wetlands
.
Degree: 2012, University of the Western Cape
URL: http://hdl.handle.net/11394/5126
► As a consequence of various cellar activities the wine industry produces copious volumes of potentially hazardous wastewater each year. South Africa is one of the…
(more)
▼ As a consequence of various cellar activities the wine industry produces copious volumes of potentially hazardous wastewater each year. South Africa is one of the top ten wine-producing countries, making the successful treatment of cellar effluent an important environmental obligation in this country.
Constructed wetlands (CWs) are resilient to the seasonal input fluxes associated with agri-industrial waste and are ideal systems for the in-situ treatment of cellar effluent in small to medium-sized wineries not connected to municipal reticulation systems. In a project sponsored by the Water Research Commission of South Africa, a number of studies were undertaken to assess the remediation of winery wastewater and common components of winery wastewater in sand-filled pilot-scale
constructed wetlands operated in batch mode. This thesis contains the results of three studies. The first study evaluated the temporal aspects of CW equilibration as a basis for future studies of system response to amendment. Microbial biomass and hydraulic conductivity values were monitored and microbial community fingerprints were obtained using denaturing gradient gel electrophoresis. The study showed that microbial community fingerprinting provides a valuable tool to assess the time-scales of microbial equilibration, which was found to be in the order of 100 days. In the second study, the biodegradation and mineralization of ethanol by acclimated and non-acclimated microbial populations in CWs were compared. By increasing the influent ethanol concentration at incremental intervals (incremental priming), the biodegradative capacity was significantly enhanced. At an influent COD concentration of 15 800 mg/L, no volatile fatty acids were detected in the effluent of an incrementally primed system and the maximum effluent COD measured was 180 mg/L. In contrast, an identical, unprimed system, amended with a lower concentration of COD (7587 mg/L), exhibited a maximum effluent COD concentration of 1 400 mg/L, with the metabolites butyrate and propionate accounting for up to 83% of the effluent COD. It was conclusively demonstrated that the use of incremental priming, together with the batch mode of operation enhanced long-term function of the CWs. In the third study, the removal of the phenolic component of winery wastewater was evaluated in CWs, as well as in sand columns and microcosms. It was found that at low influent phenolic concentrations in CWs, complete organic removal was accomplished, but at high concentrations, there was incomplete substrate removal and an accumulation of potentially toxic metabolites, including catechol. The sand provided a suitable substrate for the treatment of phenolic-laden waste, and both biotic (48%) and abiotic (52%) removal mechanisms effected the removal of model phenolics. Prior acclimation of microbial communities increased the biodegradation rate of phenolic acids significantly.
Advisors/Committee Members: Cowan, D.A (advisor).
Subjects/Keywords: Constructed wetlands;
Bioremediation;
Winery wastewater;
Ethanol
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Welz, P. J. (2012). Manipulating biotic and abiotic factors to enhance the remediation of agri-industrial wastewater in pilot-scale constructed wetlands
. (Thesis). University of the Western Cape. Retrieved from http://hdl.handle.net/11394/5126
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Welz, Pamela Jean. “Manipulating biotic and abiotic factors to enhance the remediation of agri-industrial wastewater in pilot-scale constructed wetlands
.” 2012. Thesis, University of the Western Cape. Accessed April 14, 2021.
http://hdl.handle.net/11394/5126.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Welz, Pamela Jean. “Manipulating biotic and abiotic factors to enhance the remediation of agri-industrial wastewater in pilot-scale constructed wetlands
.” 2012. Web. 14 Apr 2021.
Vancouver:
Welz PJ. Manipulating biotic and abiotic factors to enhance the remediation of agri-industrial wastewater in pilot-scale constructed wetlands
. [Internet] [Thesis]. University of the Western Cape; 2012. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/11394/5126.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Welz PJ. Manipulating biotic and abiotic factors to enhance the remediation of agri-industrial wastewater in pilot-scale constructed wetlands
. [Thesis]. University of the Western Cape; 2012. Available from: http://hdl.handle.net/11394/5126
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University
15.
Kuehn, Elaine Jinx.
Effect of plant surface area on organic carbon removal in wetlands.
Degree: MS, Bioresource Engineering, 1994, Oregon State University
URL: http://hdl.handle.net/1957/35230
► This study investigated the effect of plant surface area (plant density) on the efficiency of organic carbon removal in a bench-scale constructed wetland. Constructed wetlands…
(more)
▼ This study investigated the effect of plant surface
area (plant density) on the efficiency of organic carbon
removal in a bench-scale
constructed wetland.
Constructed wetlands are commonly assumed to be biofilm
reactors in which organic carbon removal occurs primarily
through sedimentation and aerobic degradation by attached
microbial biofilms. In conventional biofilm reactors,
aerobic degradation of organic carbon is proportional to the
amount of surface area for microbial attachment, provided
that sufficient oxygen is available. In contrast, current
design equations for
constructed wetlands assume that the
amount of surface area is not an important parameter.
A bench-scale simulation of a
constructed wetland was
conducted, using bulrushes planted at varying plant
densities in soil with a free water surface depth of about
0.27 m. The carbon source was diluted ENSUR (TM). Total
organic carbon (TOC) removal was measured. Concentration of
TOC was correlated with biochemical oxygen demand (BOD).
Tests were conducted in conditions of light and dark, and
under two different carbon loadings. Performance of
bulrushes was compared with that of inert acrylic rods.
The rate of carbon removal by mature bulrushes was
found to increase with increasing plant density until oxygen
became depleted. Higher densities degraded carbon at rates
much faster than those predicted by current design
equations. Young bulrushes degraded carbon at faster rates
than mature bulrushes. Once oxygen was depleted, rates of
degradation were reduced to rates anticipated by current
models. When plant density was 15% or greater, oxygen
became depleted in less than 6 hours. Removal efficiency
was greater at higher loadings (70 mg/l BOD) than at lower
loadings (25 mg/l BOD).
Bulrushes performed significantly better than inert
rods, sometimes by a full order of magnitude. The microbial
community on the bulrushes appeared to be more complex and
robust than that on the rods. Also, the presence of light
did not significantly increase degradation rates for the
bulrushes but was significant for the rods. The microbial
community on the rods contained a larger proportion of
epiphytic algae. The presence of light did result is
greater overall efficiency of removal for both bulrush and
rods.
Currently, a major drawback of
constructed wetlands in
wastewater treatment has been their demand for large areas
of land. This study suggests that it would be possible to
reduce the land area requirements for
constructed wetlands
for both carbon removal and nitrification/denitrification
provided designs gave more consideration to oxygen supply.
Using current designs, a retention time of 4-8 days
typically results in 70% BOD removal. This experiment
suggests that
wetlands with a retention time of about 1 day
could provide the same performance if additional oxygen were
supplied.
Advisors/Committee Members: English, Marshall J. (advisor).
Subjects/Keywords: Constructed wetlands – Evaluation
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kuehn, E. J. (1994). Effect of plant surface area on organic carbon removal in wetlands. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/35230
Chicago Manual of Style (16th Edition):
Kuehn, Elaine Jinx. “Effect of plant surface area on organic carbon removal in wetlands.” 1994. Masters Thesis, Oregon State University. Accessed April 14, 2021.
http://hdl.handle.net/1957/35230.
MLA Handbook (7th Edition):
Kuehn, Elaine Jinx. “Effect of plant surface area on organic carbon removal in wetlands.” 1994. Web. 14 Apr 2021.
Vancouver:
Kuehn EJ. Effect of plant surface area on organic carbon removal in wetlands. [Internet] [Masters thesis]. Oregon State University; 1994. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1957/35230.
Council of Science Editors:
Kuehn EJ. Effect of plant surface area on organic carbon removal in wetlands. [Masters Thesis]. Oregon State University; 1994. Available from: http://hdl.handle.net/1957/35230

Oregon State University
16.
Hossain, Belayet.
Kinetic design of free water surface constructed wetlands for treatment of pulp mill effluent.
Degree: MS, Bioresource Engineering, 1993, Oregon State University
URL: http://hdl.handle.net/1957/36355
Subjects/Keywords: Constructed wetlands – Design
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hossain, B. (1993). Kinetic design of free water surface constructed wetlands for treatment of pulp mill effluent. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/36355
Chicago Manual of Style (16th Edition):
Hossain, Belayet. “Kinetic design of free water surface constructed wetlands for treatment of pulp mill effluent.” 1993. Masters Thesis, Oregon State University. Accessed April 14, 2021.
http://hdl.handle.net/1957/36355.
MLA Handbook (7th Edition):
Hossain, Belayet. “Kinetic design of free water surface constructed wetlands for treatment of pulp mill effluent.” 1993. Web. 14 Apr 2021.
Vancouver:
Hossain B. Kinetic design of free water surface constructed wetlands for treatment of pulp mill effluent. [Internet] [Masters thesis]. Oregon State University; 1993. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1957/36355.
Council of Science Editors:
Hossain B. Kinetic design of free water surface constructed wetlands for treatment of pulp mill effluent. [Masters Thesis]. Oregon State University; 1993. Available from: http://hdl.handle.net/1957/36355

University of Guelph
17.
Rozema, Eric.
Can plants be used to remove Na and Cl from nutrient solution in greenhouse production?.
Degree: MS, School of Environmental Sciences, 2014, University of Guelph
URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8363
► The potential of using halophytic wetland plants for the removal Na+ and Cl- from recirculated greenhouse nutrient solution was assessed. Eight species were screened for…
(more)
▼ The potential of using halophytic wetland plants for the removal Na+ and Cl- from recirculated greenhouse nutrient solution was assessed. Eight species were screened for their Na+ and Cl- removal capacity and it was determined that Schoenoplectus tabernaemontani and Typha latifolia were the best candidates. A second experiment examined the effect of harvesting and harvesting frequency on plants and their capacity to uptake Na+ and Cl-. Juncus torreyi and T. latifolia responded positively to harvesting and their Na+ and Cl- uptake and biomass production were increased when harvested once or twice throughout the growing season, but harvesting had no effect on S. tabernaemontani. The effect of solution NaCl concentration was investigated and both S. tabernaemontani and T. latifolia, accumulated more Na+ and Cl- at higher concentrations. Overall, the plants removed Na+ and Cl-, but the rates were too low to make it an effective Na+ and Cl- management option for the treatment of recirculated greenhouse nutrient solution.
Advisors/Committee Members: Zheng, Youbin (advisor), Gordon, Robert (advisor).
Subjects/Keywords: constructed wetlands; halophytes; horticulture; phytodesalinization; water treatment
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APA ·
Chicago ·
MLA ·
Vancouver ·
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Manager
APA (6th Edition):
Rozema, E. (2014). Can plants be used to remove Na and Cl from nutrient solution in greenhouse production?. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8363
Chicago Manual of Style (16th Edition):
Rozema, Eric. “Can plants be used to remove Na and Cl from nutrient solution in greenhouse production?.” 2014. Masters Thesis, University of Guelph. Accessed April 14, 2021.
https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8363.
MLA Handbook (7th Edition):
Rozema, Eric. “Can plants be used to remove Na and Cl from nutrient solution in greenhouse production?.” 2014. Web. 14 Apr 2021.
Vancouver:
Rozema E. Can plants be used to remove Na and Cl from nutrient solution in greenhouse production?. [Internet] [Masters thesis]. University of Guelph; 2014. [cited 2021 Apr 14].
Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8363.
Council of Science Editors:
Rozema E. Can plants be used to remove Na and Cl from nutrient solution in greenhouse production?. [Masters Thesis]. University of Guelph; 2014. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8363

Mid Sweden University
18.
Drgham, Mohamad Mubarak.
The Current Water Balance in Syria : Evaluating the potential contribution of Constructed Wetlands as a treatment plant of municipal wastewater in Al-Haffah.
Degree: Ecotechnology and Suistainable Building Engineering, 2020, Mid Sweden University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-39574
► The future projection of climate change suggests the strong need of improved systems to the re-source management systems. In Syria, the current water resource…
(more)
▼ The future projection of climate change suggests the strong need of improved systems to the re-source management systems. In Syria, the current water resource management systems are weak, and the country has no resilience to the scarcity of water resources in the region. In 2007 a drought has crippled the Syrian economy and impacted the life of millions of Syrian People, the devastating occurrence of the drought had larger impacts due to the lack of water resource management sys-tems and irresponsibility of use. This study investigates the current management systems that Syria has, and the supply and demand of the country, of which is aimed for with the term (water balance) that refer to the flow of water in and out of the system. Furthermore, a constructed wetland design is introduced as a system to treat municipal wastewater of the town Al-Haffah, located east of Latakia city of which is situated at the Mediterranean coast, on the Costal basin. All the data avail-able relevant to the investigation has been used in the case study, nevertheless some assumptions has been made due to lack of available data. The introduced system is later evaluated in regards of water need for agricultural purposes in Al-Haffah. The design with the assumed current value, in worst case scenario could save annually (48.57%) of the groundwater abstraction for agricultural purposes, Or (29.14%) of the total water demand for the agricultural practices in Al-Haffah. Whilst, in best case scenario, if two third of the required water for agriculture is met with rainfall the system saves (145.7%) of the assumed groundwater abstraction, Or (87.43%) of the total an-nual required water.
2020-06-05
Subjects/Keywords: Water balance; constructed wetlands; Environmental Sciences; Miljövetenskap
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Drgham, M. M. (2020). The Current Water Balance in Syria : Evaluating the potential contribution of Constructed Wetlands as a treatment plant of municipal wastewater in Al-Haffah. (Thesis). Mid Sweden University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-39574
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Drgham, Mohamad Mubarak. “The Current Water Balance in Syria : Evaluating the potential contribution of Constructed Wetlands as a treatment plant of municipal wastewater in Al-Haffah.” 2020. Thesis, Mid Sweden University. Accessed April 14, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-39574.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Drgham, Mohamad Mubarak. “The Current Water Balance in Syria : Evaluating the potential contribution of Constructed Wetlands as a treatment plant of municipal wastewater in Al-Haffah.” 2020. Web. 14 Apr 2021.
Vancouver:
Drgham MM. The Current Water Balance in Syria : Evaluating the potential contribution of Constructed Wetlands as a treatment plant of municipal wastewater in Al-Haffah. [Internet] [Thesis]. Mid Sweden University; 2020. [cited 2021 Apr 14].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-39574.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Drgham MM. The Current Water Balance in Syria : Evaluating the potential contribution of Constructed Wetlands as a treatment plant of municipal wastewater in Al-Haffah. [Thesis]. Mid Sweden University; 2020. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-39574
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manitoba
19.
Jeke, Nicholson Ngoni.
Wetland and terrestrial phytoremediation of an end-of-life municipal lagoon using cattail (Typha spp.).
Degree: Soil Science, 2018, University of Manitoba
URL: http://hdl.handle.net/1993/33564
► Spreading biosolids on farmland is a common biosolids management practice in western Canada. Wetland and terrestrial-based phytoremediation approaches may be viable options for remediating biosolids…
(more)
▼ Spreading biosolids on farmland is a common biosolids management practice in western Canada. Wetland and terrestrial-based phytoremediation approaches may be viable options for remediating biosolids in end-of-life municipal lagoons. Water depth is regulated during wetland phytoremediation whereas there is no control of water regime during terrestrial phytoremediation. Studies were conducted to quantify cattail (Typha spp.) biomass and nitrogen (N) and phosphorus (P) phytoextraction from biosolids in (i) a wetland
constructed in the former primary cell and (ii) a dewatered secondary cell of an end-of-life municipal lagoon. Overall, the phytoextraction of N and P by cattail was lower with a single harvest than two harvests per year. The study also examined the effects of harvest timing (August, November, and April) on nutrient removal in the harvested cattail biomass. Compared to August, harvesting cattails in the wetland in November or April reduced N and P phytoextraction by 63-85%. In the wetland study, nutrient phytoextraction was 6.2% of initial N content and 2.2% of initial P content while the terrestrial-based approach removed 5.8% and 2.3% of the initial N and P content, respectively. A greater fraction of P (~ 73%) taken up by cattail was sequestered in the rhizomes, which reduced its mobility and transport to surface waters. A study examining nutrient availability using plant root simulator (PRS) probes during wetland-based phytoremediation showed that N supply rate increased with time after July whereas phosphate supply rate remained relatively unchanged. Cumulative nutrient supply rate was positively correlated with plant uptake. The effects of flooding on P release during terrestrial phytoremediation in the secondary cell was investigated using biosolids cores. Dissolved reactive P (DRP) was the major fraction of P in floodwater. Flooding for more than 3 d resulted in the release of >0.5 mg L-1 DRP to floodwater. Our results suggest that biosolids pose a risk of P loss to surface water bodies receiving floodwater from the lagoon. Releasing floodwater closer to the start of the flooding event minimizes P release to floodwater. Overall, this research shows that phytoremediation is a viable, low-cost option for managing biosolids from end-of-life municipal lagoons.
Advisors/Committee Members: Zvomuya, Francis, (Soil Science) (supervisor), Cicek, Nazim (Biosystems Engineering) Goh, Tee Boon (Soil Science) Dr. Pascal, Badiou (Soil Science) Whalen, Joann (McGill University) (examiningcommittee).
Subjects/Keywords: Phytoremediation; Biosolids; Nitrogen; Phosphorus; Constructed wetlands
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jeke, N. N. (2018). Wetland and terrestrial phytoremediation of an end-of-life municipal lagoon using cattail (Typha spp.). (Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/33564
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Jeke, Nicholson Ngoni. “Wetland and terrestrial phytoremediation of an end-of-life municipal lagoon using cattail (Typha spp.).” 2018. Thesis, University of Manitoba. Accessed April 14, 2021.
http://hdl.handle.net/1993/33564.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Jeke, Nicholson Ngoni. “Wetland and terrestrial phytoremediation of an end-of-life municipal lagoon using cattail (Typha spp.).” 2018. Web. 14 Apr 2021.
Vancouver:
Jeke NN. Wetland and terrestrial phytoremediation of an end-of-life municipal lagoon using cattail (Typha spp.). [Internet] [Thesis]. University of Manitoba; 2018. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1993/33564.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Jeke NN. Wetland and terrestrial phytoremediation of an end-of-life municipal lagoon using cattail (Typha spp.). [Thesis]. University of Manitoba; 2018. Available from: http://hdl.handle.net/1993/33564
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Edinburgh
20.
Drizo, Aleksandra.
Phosphate and ammonium removal from waste water, using constructed wetland systems.
Degree: PhD, 1998, University of Edinburgh
URL: http://hdl.handle.net/1842/9991
► Phosphorus and nitrogen in waste water from sewerage systems contribute to excessive nutrient enrichment of surface waters, presenting a threat to nature conservation, domestic and…
(more)
▼ Phosphorus and nitrogen in waste water from sewerage systems contribute to excessive nutrient enrichment of surface waters, presenting a threat to nature conservation, domestic and industrial water supplies, and recreation. The general objective of this research was to investigate phosphate and ammonium removal from waste water by constructed wetland systems (CWS), which are increasingly being used for low-cost water treatment. Phosphate (P) adsorption capacity and other properties of potential CWS substrate materials (bauxite, shale, burnt oil shale, limestone, zeolite, light expanded clay aggregates (LECA) and fly ash) were investigated. Fly ash and shale had the highest P adsorption values, which were significantly correlated with porosity and hydraulic conductivity. Longer - term experiments with shale and bauxite gave maximum P uptake values of 730 and 355 mg P kg- I, respectively. Phragmites australis (common reed) seedlings grew satisfactorily in shale, bauxite, LECA and fly ash. Shale was selected as the most suitable substrate, and used in a pilot-scale CWS in plastic tanks in a greenhouse, with and without P. australis, at two input nutrient concentrations and a loading rate of 0.02 m3 m-2 d-1. Both planted and unplanted systems removed 98 - I 00% of P from a synthetic sewage over ll months. Removal of ammonium N was also complete in the planted tanks, but only 40 - 75% was removed in the unplanted ones. Corresponding nitrate N removal was 85 - 95% and 45 - 75%. The systems performed as well at high as at low concentration for both phosphate and ammonium. The variations in P and N removal could not be attributed to differences in pH, Eh and temperature, which did not differ significantly between planted and unplanted tanks. During the experiment, P and N concentrations were determined at 3 depths and 4 positions along the length of the tanks. H2P04- - P and NH/ - N concentrations were low ( < I. 0 g m-3) at all locations in the planted systems, whereas the P concentrations were sometimes twice as high in the unplanted ones. NH4 + -N in the unplanted systems was relatively high (l 0 - 30 g m"3) throughout the experiment. N03 – N concentrations were very low by comparison. P. precipitation on shale and P. australis root and rhizome surfaces was examined by X-ray fluorescence analysis, and by chemical extraction with ammonium acetate, 0.1 M HCI and 2%> citric acid. This showed that P, Fe and Al had precipitated on all these surfaces. However. it was not possible to quantify the surface deposits, and further research is necessary. The hydraulic residence time. flow characteristics and permeability of the shale was investigated by a bromide tracer. The tracer breakthrough curves showed a similar pattern in all tanks, with ca 66% of the flow occurring through the bottom zone. However, the actual hydraulic residence time (6 days) was slightly higher than the theoretical one Although there was a significant difference (p < 0.02) between the distribution of flow in planted and unplanted tanks. there was no reduction…
Subjects/Keywords: 628.3; Constructed wetlands
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Drizo, A. (1998). Phosphate and ammonium removal from waste water, using constructed wetland systems. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/9991
Chicago Manual of Style (16th Edition):
Drizo, Aleksandra. “Phosphate and ammonium removal from waste water, using constructed wetland systems.” 1998. Doctoral Dissertation, University of Edinburgh. Accessed April 14, 2021.
http://hdl.handle.net/1842/9991.
MLA Handbook (7th Edition):
Drizo, Aleksandra. “Phosphate and ammonium removal from waste water, using constructed wetland systems.” 1998. Web. 14 Apr 2021.
Vancouver:
Drizo A. Phosphate and ammonium removal from waste water, using constructed wetland systems. [Internet] [Doctoral dissertation]. University of Edinburgh; 1998. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1842/9991.
Council of Science Editors:
Drizo A. Phosphate and ammonium removal from waste water, using constructed wetland systems. [Doctoral Dissertation]. University of Edinburgh; 1998. Available from: http://hdl.handle.net/1842/9991

Delft University of Technology
21.
Navrady, S. (author).
Corredor de Agua Urbano.
Degree: 2012, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:d171183a-aff9-434c-aa8e-ad498dc059be
► Graduation thesis investigating the interrelation between water infrastructure, landscape and public space in Ciudad Juarez, Mexico. The project was developed as part of the DSD…
(more)
▼ Graduation thesis investigating the interrelation between water infrastructure, landscape and public space in Ciudad Juarez, Mexico. The project was developed as part of the DSD Urban Asymmetries Ciudad Juarez Studio.
Urban Asymmetries
Delft School of Design
Architecture
Advisors/Committee Members: Sohn, H. (mentor), Bruyns, G. (mentor), Plomp, H. (mentor).
Subjects/Keywords: infrastructural architecture; water treatment; constructed wetlands
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APA ·
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to Zotero / EndNote / Reference
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APA (6th Edition):
Navrady, S. (. (2012). Corredor de Agua Urbano. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:d171183a-aff9-434c-aa8e-ad498dc059be
Chicago Manual of Style (16th Edition):
Navrady, S (author). “Corredor de Agua Urbano.” 2012. Masters Thesis, Delft University of Technology. Accessed April 14, 2021.
http://resolver.tudelft.nl/uuid:d171183a-aff9-434c-aa8e-ad498dc059be.
MLA Handbook (7th Edition):
Navrady, S (author). “Corredor de Agua Urbano.” 2012. Web. 14 Apr 2021.
Vancouver:
Navrady S(. Corredor de Agua Urbano. [Internet] [Masters thesis]. Delft University of Technology; 2012. [cited 2021 Apr 14].
Available from: http://resolver.tudelft.nl/uuid:d171183a-aff9-434c-aa8e-ad498dc059be.
Council of Science Editors:
Navrady S(. Corredor de Agua Urbano. [Masters Thesis]. Delft University of Technology; 2012. Available from: http://resolver.tudelft.nl/uuid:d171183a-aff9-434c-aa8e-ad498dc059be

University of Toronto
22.
Yu, Zhu Hao.
Role of Salinity, Genotypic Variation, Microbial Communities, and Algae on the Elimination of Benzotriazole by Duckweed Lemna minor.
Degree: 2020, University of Toronto
URL: http://hdl.handle.net/1807/103321
► Benzotriazole is an emerging contaminant incompletely removed by wastewater treatment plants. This work investigated several environmental factors that may influence the transformation of benzotriazole by…
(more)
▼ Benzotriazole is an emerging contaminant incompletely removed by wastewater treatment plants. This work investigated several environmental factors that may influence the transformation of benzotriazole by wetland model plant duckweed Lemna minor, including salinity, variation among duckweed genotypes, microbial communities, and algae Chlorella vulgaris. Results show that high salinity (10 g/L) reduced the phytotransformation (transformation by plant) of benzotriazole. Intermediate salinity (0.8 g/L) modulated the formation of phototransformation (transformation driven by light) products aniline and 3-aminophenol. Microbial inoculation promoted the formation of a phytotransformation product, benzotriazole acetyl-alanine. Variation among duckweed genotypes in transforming benzotriazole suggests that constructed wetlands could be designed to increase benzotriazole depletion and reduce effluent toxicity by selecting appropriate duckweed genotypes. Algae also depleted benzotriazole, but it did not influence the depletion kinetics by duckweed in a symbiotic manner. Other plants and algae could potentially phytotransform benzotriazole as the proposed pathways are shared among plants and algae.
M.A.S.
Advisors/Committee Members: Passeport, Elodie, Chemical Engineering Applied Chemistry.
Subjects/Keywords: algae; benzotriazole; constructed wetlands; duckweed; phytotransformation; 0542
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Yu, Z. H. (2020). Role of Salinity, Genotypic Variation, Microbial Communities, and Algae on the Elimination of Benzotriazole by Duckweed Lemna minor. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/103321
Chicago Manual of Style (16th Edition):
Yu, Zhu Hao. “Role of Salinity, Genotypic Variation, Microbial Communities, and Algae on the Elimination of Benzotriazole by Duckweed Lemna minor.” 2020. Masters Thesis, University of Toronto. Accessed April 14, 2021.
http://hdl.handle.net/1807/103321.
MLA Handbook (7th Edition):
Yu, Zhu Hao. “Role of Salinity, Genotypic Variation, Microbial Communities, and Algae on the Elimination of Benzotriazole by Duckweed Lemna minor.” 2020. Web. 14 Apr 2021.
Vancouver:
Yu ZH. Role of Salinity, Genotypic Variation, Microbial Communities, and Algae on the Elimination of Benzotriazole by Duckweed Lemna minor. [Internet] [Masters thesis]. University of Toronto; 2020. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1807/103321.
Council of Science Editors:
Yu ZH. Role of Salinity, Genotypic Variation, Microbial Communities, and Algae on the Elimination of Benzotriazole by Duckweed Lemna minor. [Masters Thesis]. University of Toronto; 2020. Available from: http://hdl.handle.net/1807/103321

Tartu University
23.
Oopkaup, Kristjan.
Microbial community and its relationship with pollutant removal in treatment wetlands
.
Degree: 2018, Tartu University
URL: http://hdl.handle.net/10062/62595
► Tehismärgalasid (TM) on viimase poole sajandi jooksul kasutatud reovee puhastumise alternatiivse meetodina konventsionaalsete puhastite kõrval. TM erinevad omadused, sealhulgas filtermaterjali tüüp, tööparameetrid ning samuti taimestiku…
(more)
▼ Tehismärgalasid (TM) on viimase poole sajandi jooksul kasutatud reovee puhastumise alternatiivse meetodina konventsionaalsete puhastite kõrval. TM erinevad omadused, sealhulgas filtermaterjali tüüp, tööparameetrid ning samuti taimestiku olemasolu, mõjutavad mikroobikoosluste struktuuri, ruumilist jaotust ja aktiivsust süsteemis. Kuna mikroobsed protsessid on TM reovee puhastusel olulise tähtsusega, aitavad uuringud mikroobiökoloogias laiendada teadmisi mikroobikoosluse kujunemisest ja seostest TM tööparameetritega, võimaldades seeläbi luua stabiilse ja metaboolselt aktiivse mikroobikoosluse jaoks sobiliku TM keskkonna ja selle kaudu tõsta erinevate reoainete puhastamise efektiivsust. Käesoleva doktoritöö eesmärgiks oli uurida eri tüüpi TM mikroobikoosluse arvukust ja struktuuri ning kuidas mikroobikoosluse parameetrid on seotud TM puhastusefektiivsusega ja millised keskkonnafaktorid mõjutavad mikroobikoosluse stabiliseerumist uuritavates süsteemides. Uurimisobjektideks olid kolm eri tüüpi TM, millest kaks olid vastrajatud eksperimentaalset TM ja üks üle 15 aasta kasutuses olnud vabaveeline jõevett puhastav TM kompleks. Saadud tulemused näitasid, et reovee koostis, TM tüüp ja töörežiim mõjutavad bakterikoosluse kujunemist ja struktuuri tehismärgalas. Mikroobikoosluse struktuuri kujunemisel oli näha sarnast ajalist suktsessiooni kahe eksperimentaalse TM vahel. Mikroobikoosluse mitmekesisus tõusis märgatavalt mõlema süsteemi esimese kolme kuu jooksul ja seejärel stabiliseerus, sealhulgas olid algsed muutused mikroobikoosluse kujunemisel suurema varieeruvusega kui pärast stabiliseerumist. Nii mikroobikoosluse mitmekesisus kui ka teatud bakteriperekondade osakaalud olid seotud nende süsteemide puhastusefektiivsustega. Töö tulemused kinnitasid mitmete koosesinevate bakterirühmade mõju nii lämmastiku kui orgaaniliste ühendite eemaldamisele reoveest. Uuritavates TM olid peamisteks lämmastikuärastuse protsessideks autotroofne ja heterotroofne nitrifikatsioon ning denitrifikatsioon ning vähemal määral anaeroobne ammooniumi oksüdeerimine, eelkõige vabaveelises tehismärgalas. Käesoleva doktoritöö tulemuste põhjal saab teha järelduse, et erinevate reoainete parimaks eemaldamiseks tuleks TM konstrueerida ja opereerida meetodil, mis loovad sobiva keskkonna mitmekesise ja kõrge metaboolse aktiivsusega mikroobikoosluse kujunemiseks.; Treatment
wetlands (TWs) have been used over fifty years for purification of different types of wastewater. Pollutant removal processes in TWs are mostly related to microbiologically mediated reactions. Knowledge of the microbial community dynamics and structure and the relationship with the system properties and operating conditions is therefore crucial for the development and optimization of effective TWs. In this thesis, bacterial community abundance, structure and diversity was evaluated, as well as their relationship with the pollutant removal potential in three different types of TWs: experimental greywater-fed hybrid TW, horizontal subsurface flow filters of an experimental hybrid TW, and riverine…
Advisors/Committee Members: Truu, Jaak, juhendaja (advisor), Truu, Marika, juhendaja (advisor).
Subjects/Keywords: constructed wetlands;
microbial communities;
wastewater treatment
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Oopkaup, K. (2018). Microbial community and its relationship with pollutant removal in treatment wetlands
. (Thesis). Tartu University. Retrieved from http://hdl.handle.net/10062/62595
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Oopkaup, Kristjan. “Microbial community and its relationship with pollutant removal in treatment wetlands
.” 2018. Thesis, Tartu University. Accessed April 14, 2021.
http://hdl.handle.net/10062/62595.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Oopkaup, Kristjan. “Microbial community and its relationship with pollutant removal in treatment wetlands
.” 2018. Web. 14 Apr 2021.
Vancouver:
Oopkaup K. Microbial community and its relationship with pollutant removal in treatment wetlands
. [Internet] [Thesis]. Tartu University; 2018. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/10062/62595.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Oopkaup K. Microbial community and its relationship with pollutant removal in treatment wetlands
. [Thesis]. Tartu University; 2018. Available from: http://hdl.handle.net/10062/62595
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Montana State University
24.
VanKempen-Fryling, Rachel Joy.
Understanding Escherichia coli O157:H7 presence, pervasiveness, and persistence in constructed treatment wetland systems.
Degree: PhD, College of Letters & Science, 2015, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/9086
► Treatment wetlands (TW) are a wastewater remediation technology that relies on the natural ability of wetland plant species and the associated microbial consortia to remove…
(more)
▼ Treatment
wetlands (TW) are a wastewater remediation technology that relies on the natural ability of wetland plant species and the associated microbial consortia to remove pollutants and improve water quality. Although there is substantial research on chemical pollutant remediation by TW, the removal of bacterial pathogens is much more varied and limited in scope. Escherichia coli O157:H7 is a bacterial pathogen that has caused numerous outbreaks and infections in the United States alone and is closely associated with improper water treatment. Understanding how E. coli O157:H7 could potentially persist and survive through a TW process is important in order to appropriately determine the efficacy of TW for treating water and protecting human health. This work used epifluorescent microscopy and qPCR relative DNA abundance to track E. coli O157:H7 tagged with a fluorescent DsRed protein in various environments pertaining to a TW. Two high performing wetland plant species, Carex utriculata and Schoenoplectus acutus, were used in hydroponic and simulated TW columns to better understand how the bacteria localize and persist. Teflon nylon strings (diameter 0.71-1.02 mm), cleaned and with established biofilm, were run hydroponically as control inert surfaces. Unplanted gravel columns were used as a nonplanted control for column experiments. E. coli O157:H7-DsRed were observed by microscopy on root surfaces both in hydroponic reactors and lab scale TW columns. The organisms persisted, forming microcolonies shortly after initial inoculation on both root and nylon surfaces. In the lab scale columns, cells persisted for three weeks, although strong biofilm formation was not observed. qPCR also provided evidence that E. coli O157:H7 was able to persist on the tested surfaces of plant roots, nylon inert surfaces, and gravel, showing higher abundance S. acutus roots than on the inert surface and gravel, however higher in unplanted gravel overall. For the plant types, C. utriculata was statistically lower for E. coli O157:H7 abundance than S. acutus over time. This work provides evidence that E. coli O157:H7 is able to colonize and persist in a TW environment, and plant surfaces may offer a higher inactivation than an inert matrix.
Advisors/Committee Members: Chairperson, Graduate Committee: Anne Camper (advisor), Otto R. Stein and Anne K. Camper were co-authors of the article, 'Presence and persistence of wastewater pathogen Escherichia coli O157:H7 in hydroponic reactors of treatment wetland species' in the journal 'Water science and technology' which is contained within this thesis. (other), Anne K. Camper was a co-author of the article, 'Escherichia coli O157:H7 attachment and persistence within root biofilm of common treatment wetlands plants' submitted to the journal 'Water research ' which is contained within this thesis. (other), Anne K. Camper was a co-author of the article, 'Using molecular and microscopic techniques to track the wastewater pathogen Escherichia coli O157:H7 within model treatment wetlands' submitted to the journal 'Applied and environmental microbiology' which is contained within this thesis. (other).
Subjects/Keywords: Water – Purification; Escherichia coli; Constructed wetlands
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
VanKempen-Fryling, R. J. (2015). Understanding Escherichia coli O157:H7 presence, pervasiveness, and persistence in constructed treatment wetland systems. (Doctoral Dissertation). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/9086
Chicago Manual of Style (16th Edition):
VanKempen-Fryling, Rachel Joy. “Understanding Escherichia coli O157:H7 presence, pervasiveness, and persistence in constructed treatment wetland systems.” 2015. Doctoral Dissertation, Montana State University. Accessed April 14, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/9086.
MLA Handbook (7th Edition):
VanKempen-Fryling, Rachel Joy. “Understanding Escherichia coli O157:H7 presence, pervasiveness, and persistence in constructed treatment wetland systems.” 2015. Web. 14 Apr 2021.
Vancouver:
VanKempen-Fryling RJ. Understanding Escherichia coli O157:H7 presence, pervasiveness, and persistence in constructed treatment wetland systems. [Internet] [Doctoral dissertation]. Montana State University; 2015. [cited 2021 Apr 14].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/9086.
Council of Science Editors:
VanKempen-Fryling RJ. Understanding Escherichia coli O157:H7 presence, pervasiveness, and persistence in constructed treatment wetland systems. [Doctoral Dissertation]. Montana State University; 2015. Available from: https://scholarworks.montana.edu/xmlui/handle/1/9086

Drexel University
25.
Frazier, Lindsay Elizabeth.
The Effects of Water Table, Hydraulic Loading Ratio, and Climate Change on Constructed Wetland Stormwater Capture Performance.
Degree: 2016, Drexel University
URL: http://hdl.handle.net/1860/idea:6906
► This paper investigates the effect of a high water table, hydraulic loading ratio (HLR), and climate change on a constructed wetland's (CW) water budget and…
(more)
▼ This paper investigates the effect of a high water table, hydraulic loading ratio (HLR), and climate change on a constructed wetland's (CW) water budget and stormwater capture performance. The 940 m2 CW receives runoff from a 6,880 m2 parking lot, with excess flows discharged to Meadow Lake, (Flushing, NY USA). Inflows to the CW include precipitation and parking lot runoff; outflows include evapotranspiration, infiltration, discharge through the low flow underdrain, and flow to the lake over the thelmar weir. Performance was investigated over a total of 14 pairs of wet and dry spells occurring between September 29th, 2015 and November 24th, 2015. Actual evapotranspiration rates were calculated using the Penman Monteith Equation, infiltration rates derived from observed wetland drawdown, and outflow based on classical hydraulic relationships associated with the various weirs and conduits installed. The water budget was computed daily. An EPA SMM model validated to the observations was used to simulate the performance of the facility over a typical rainfall year, and to model changes in CW performance due to increased HLR and climate change. Stormwater capture per event varies from 1.4% to 100% of inflows, respectively, with a mean of 76%. The model suggest a nearly linear, 0.7% reduction in the mean percent of event inflow retained for every one unit increase in HLR (r2=0.9). The modeling also suggests that the reduced performance of the site due to climate change is approximately equivalent to an increase in HLR of 58.9% (HLR=11.6). Hydraulic features such as low flow discharge pipes, and siting decisions such as associated with the designed tributary drainage area, can thus potentially be used to compensate for physical conditions such as the presence of a high water table and climate change that would otherwise reduce facility performance.
M.S., Environmental Engineering – Drexel University, 2016
Advisors/Committee Members: Montalto, Franco.
Subjects/Keywords: Environmental engineering; Constructed wetlands – Runoff – Environmental aspects; Constructed wetlands – Climatic changes – Environmental aspects
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Frazier, L. E. (2016). The Effects of Water Table, Hydraulic Loading Ratio, and Climate Change on Constructed Wetland Stormwater Capture Performance. (Thesis). Drexel University. Retrieved from http://hdl.handle.net/1860/idea:6906
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Frazier, Lindsay Elizabeth. “The Effects of Water Table, Hydraulic Loading Ratio, and Climate Change on Constructed Wetland Stormwater Capture Performance.” 2016. Thesis, Drexel University. Accessed April 14, 2021.
http://hdl.handle.net/1860/idea:6906.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Frazier, Lindsay Elizabeth. “The Effects of Water Table, Hydraulic Loading Ratio, and Climate Change on Constructed Wetland Stormwater Capture Performance.” 2016. Web. 14 Apr 2021.
Vancouver:
Frazier LE. The Effects of Water Table, Hydraulic Loading Ratio, and Climate Change on Constructed Wetland Stormwater Capture Performance. [Internet] [Thesis]. Drexel University; 2016. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1860/idea:6906.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Frazier LE. The Effects of Water Table, Hydraulic Loading Ratio, and Climate Change on Constructed Wetland Stormwater Capture Performance. [Thesis]. Drexel University; 2016. Available from: http://hdl.handle.net/1860/idea:6906
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU
26.
Weng, Chu-yuang.
The Effect of Seasonal and Tidal Variations on Treatment Efficiencies by Yuanjhongkang Constructed Wetlands.
Degree: Master, Marine Environment and Engineering, 2017, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0003117-153816
► In the past, the Taiwanese government was committed to implementing industrial development policies that emphasized economic development. These policies subsequently led to the destructions of…
(more)
▼ In the past, the Taiwanese government was committed to implementing industrial development policies that emphasized economic development. These policies subsequently led to the destructions of Taiwanâs ecology. However, the rise of domestic environmental awareness and industry transformations have gradually increased peopleâs attention to measures that protect the environment, in which the concept of artificial
wetlands serves as one of these measures. Artificial
wetlands are mainly divided into
constructed wetlands and created
wetlands.
Constructed wetlands are artificial
wetlands that have been ameliorated by improving their water quality. By contrast, created
wetlands are
wetlands that entail recovering ecological habitats or creating nature-like biological habitats to provide or replace existing biological habitats. The Yuanzhonggang Wetland Park is a wetland park located in Nanzi District, Kaohsiung City. Because the region is located next to an area to be built into a second-generation naval ship base, the construction of the naval ship base will inevitably exhibit an effect on the habitat environment. Therefore, the Yuanzhonggang
wetlands are classified and positioned as âcompensatoryâ created
wetlands and efforts to recover their ecological habitats have been made accordingly. The goals are to recover mangroves, emphasize the use of native tree species, and serve the functions of flood control, water purification, landscape-based recreation, and ecological education. Located in the Nanzi District, Kaohsiung City, the Yuanzhonggang Wetland Park measures 29.41 ha and is divided into an east and west region by the Nanzi Wastewater Treatment Plant. The east and west
wetlands are freshwater and brackish water-type ecosystems, respectively, in which the water for the east region primarily comes from secondary effluents discharged by the Nanzi Wastewater Treatment Plant. The said effluents are subsequently purified by
constructed wetlands before being released into the Dianbao River. The west region is located in the tidal river section of the Dianbao River estuary, where brackish water of the Dianbao River flows into the Yuanzhonggang Wetland Park at high tide. In this study, water purification results of the
constructed wetlands in the east and west regions were assessed to determine whether they achieved the desired effectiveness. Water purification samples were collected once a season, where spring and neap tides were obtained at high and low tides and analyzed for water quality including their biochemical oxygen demand (BOD) as well as ammoniacal nitrogen, total Kjeldahl nitrogen, nitrite, nitric acid, orthophosphate, total phosphorus, and total carbon contents. The results of the east and west regions were subsequently compared. According to the results, of the four seasons,
constructed wetlands of the east region and created
wetlands of the west region displayed the most optimal pollution removal effect in the hot seasons (i.e., summer and fall). For spring and neap tides at the west outlet, total phosphorus…
Advisors/Committee Members: Lei Yang (committee member), Chin-Ming Kao (chair), Tzung-Yuh Yeh (chair).
Subjects/Keywords: constructed wetlands; tide; season; created wetlands; Yuanjhongkang wetland; water purification
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Weng, C. (2017). The Effect of Seasonal and Tidal Variations on Treatment Efficiencies by Yuanjhongkang Constructed Wetlands. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0003117-153816
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Weng, Chu-yuang. “The Effect of Seasonal and Tidal Variations on Treatment Efficiencies by Yuanjhongkang Constructed Wetlands.” 2017. Thesis, NSYSU. Accessed April 14, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0003117-153816.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Weng, Chu-yuang. “The Effect of Seasonal and Tidal Variations on Treatment Efficiencies by Yuanjhongkang Constructed Wetlands.” 2017. Web. 14 Apr 2021.
Vancouver:
Weng C. The Effect of Seasonal and Tidal Variations on Treatment Efficiencies by Yuanjhongkang Constructed Wetlands. [Internet] [Thesis]. NSYSU; 2017. [cited 2021 Apr 14].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0003117-153816.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Weng C. The Effect of Seasonal and Tidal Variations on Treatment Efficiencies by Yuanjhongkang Constructed Wetlands. [Thesis]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0003117-153816
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Otago
27.
Dykes, Kirsty Louise.
Constructed Wetlands for Nutrient Attenuation
.
Degree: 2013, University of Otago
URL: http://hdl.handle.net/10523/4122
► The use of constructed wetlands in New Zealand and their role as an attenuation tool for removing nutrients from agricultural runoff are examined in this…
(more)
▼ The use of
constructed wetlands in New Zealand and their role as an attenuation tool for removing nutrients from agricultural runoff are examined in this study. The need for attenuation is evident through frequent documentation stating that streams flowing through dairy farms are high in nutrients as a result of non-point source pollution from agricultural runoff and fertiliser use.
Constructed wetlands are one such attenuation tool that has the potential to ameliorate these water quality issues via a myriad of chemical, biological and physical processes that allows the wetland to act as a filter for polluted water. The objective of this study was to quantify nutrient loads from a small dairy unit at Telford Research Farm to provide baseline data in which to test the efficacy of a
constructed wetland. Weekly water samples were collected from the wetland during winter flow and more frequent samples were taken during event flow. These were analysed for total phosphorous (TP), total nitrogen (TN), nitrate (NO3), ammonium (NH4), phosphate (PO4) and total suspended sediment (TSS). Nutrient removal of 63% and 50% for 2011 and 2012 respectively for NO3, as well as consistent TP removal of around 25% indicate that this gully is acting as a wetland. Clear flood peak attenuation is also evident, a further characteristic of a wetland. However, variable results achieved under base flow and event flow by NH4, TN and PO4 combined with continued sediment export as high as 98% under base flow suggests otherwise. Future modifications at this site, such as the planting of macrophytes and creating pools within the wetland will increase attenuation of both N and P forms as well as total suspended sediment. Site modifications combined with best management practices and long term monitoring will ensure Telford farm maintains a high standard of water quality as well as generating valuable information to provide farming communities with knowledge on
constructed wetlands and their potential to be used as a water quality management tool within the farming landscape of New Zealand.
Advisors/Committee Members: Mager, Sarah (advisor).
Subjects/Keywords: Telford Research Farm;
Constructed Wetlands;
Wetlands;
Attenuation;
nutrients;
water quality
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dykes, K. L. (2013). Constructed Wetlands for Nutrient Attenuation
. (Masters Thesis). University of Otago. Retrieved from http://hdl.handle.net/10523/4122
Chicago Manual of Style (16th Edition):
Dykes, Kirsty Louise. “Constructed Wetlands for Nutrient Attenuation
.” 2013. Masters Thesis, University of Otago. Accessed April 14, 2021.
http://hdl.handle.net/10523/4122.
MLA Handbook (7th Edition):
Dykes, Kirsty Louise. “Constructed Wetlands for Nutrient Attenuation
.” 2013. Web. 14 Apr 2021.
Vancouver:
Dykes KL. Constructed Wetlands for Nutrient Attenuation
. [Internet] [Masters thesis]. University of Otago; 2013. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/10523/4122.
Council of Science Editors:
Dykes KL. Constructed Wetlands for Nutrient Attenuation
. [Masters Thesis]. University of Otago; 2013. Available from: http://hdl.handle.net/10523/4122
28.
Drayer, Andrea Nicole.
Efficacy Of Constructed Wetlands Of Various Depths For Natural Amphibian Community Conservation.
Degree: MS, Biological Sciences, 2011, Encompass Digital Archive, Eastern Kentucky University
URL: https://encompass.eku.edu/etd/33
► Wetlands provide critical habitat for a diverse group of amphibians and provide important ecosystem functions and services to humans. Despite this, most natural wetlands…
(more)
▼ Wetlands provide critical habitat for a diverse group of amphibians and provide important ecosystem functions and services to humans. Despite this, most natural wetlands have been lost to land use practices. Consequently, constructing wetlands has become a common practice to mitigate for removed wetlands and to manage for wildlife. There were three primary objectives of this research: 1) to examine whether or not constructed wetlands located on ridge tops in eastern Kentucky in the Daniel Boone National Forest (DBNF) had amphibian communities comparable to natural ephemeral wetlands, 2) to examine amphibian predator-prey relationships within the constructed wetlands, and 3) to determine what wetland characteristics affect species composition. Three types of wetlands were sampled forested natural ephemeral, shallow constructed (< 20 cm minimum depth), and deep constructed wetlands (> 20 cm minimum depth). Within this system, natural wetlands are ephemeral, whereas constructed wetlands typically do not dry. As a result, many species of the natural ridge-top amphibian community were scarce in shallow constructed wetlands and absent in deep constructed wetlands. Additionally, due to constructed wetlands, dominant amphibian predator species, primarily associated with permanent water, Rana catesbeiana (American bullfrog) and Notophthalmus viridescens (eastern newt), were in greater abundances than would occur naturally. Stomach contents of R. catesbeiana contained amphibian remains confirming interspecies predation. Further, in constructed wetlands, water depth, pH, dissolved oxygen, water temperature, and emergent vegetation were greater, whereas canopy closure was lower compared to natural wetlands. These data have influenced DBNF land managers to revise wetland construction methods and renovate older deep constructed wetlands to attempt to replicate the hydrology of natural ridge-top wetlands.
Subjects/Keywords: amphibians; constructed wetlands; Kentucky; management; natural wetlands; ridge-top; Biology
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Drayer, A. N. (2011). Efficacy Of Constructed Wetlands Of Various Depths For Natural Amphibian Community Conservation. (Masters Thesis). Encompass Digital Archive, Eastern Kentucky University. Retrieved from https://encompass.eku.edu/etd/33
Chicago Manual of Style (16th Edition):
Drayer, Andrea Nicole. “Efficacy Of Constructed Wetlands Of Various Depths For Natural Amphibian Community Conservation.” 2011. Masters Thesis, Encompass Digital Archive, Eastern Kentucky University. Accessed April 14, 2021.
https://encompass.eku.edu/etd/33.
MLA Handbook (7th Edition):
Drayer, Andrea Nicole. “Efficacy Of Constructed Wetlands Of Various Depths For Natural Amphibian Community Conservation.” 2011. Web. 14 Apr 2021.
Vancouver:
Drayer AN. Efficacy Of Constructed Wetlands Of Various Depths For Natural Amphibian Community Conservation. [Internet] [Masters thesis]. Encompass Digital Archive, Eastern Kentucky University; 2011. [cited 2021 Apr 14].
Available from: https://encompass.eku.edu/etd/33.
Council of Science Editors:
Drayer AN. Efficacy Of Constructed Wetlands Of Various Depths For Natural Amphibian Community Conservation. [Masters Thesis]. Encompass Digital Archive, Eastern Kentucky University; 2011. Available from: https://encompass.eku.edu/etd/33

Montana State University
29.
Allen, Diana L.
Processes of alkalinity addition to passive wetland systems near Great Falls, MT.
Degree: MS, Animal & Range Sciences., 1998, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/11311
Subjects/Keywords: Constructed wetlands; Limestone; Wetlands; Ecology
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Allen, D. L. (1998). Processes of alkalinity addition to passive wetland systems near Great Falls, MT. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/11311
Chicago Manual of Style (16th Edition):
Allen, Diana L. “Processes of alkalinity addition to passive wetland systems near Great Falls, MT.” 1998. Masters Thesis, Montana State University. Accessed April 14, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/11311.
MLA Handbook (7th Edition):
Allen, Diana L. “Processes of alkalinity addition to passive wetland systems near Great Falls, MT.” 1998. Web. 14 Apr 2021.
Vancouver:
Allen DL. Processes of alkalinity addition to passive wetland systems near Great Falls, MT. [Internet] [Masters thesis]. Montana State University; 1998. [cited 2021 Apr 14].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/11311.
Council of Science Editors:
Allen DL. Processes of alkalinity addition to passive wetland systems near Great Falls, MT. [Masters Thesis]. Montana State University; 1998. Available from: https://scholarworks.montana.edu/xmlui/handle/1/11311

Queens University
30.
Chouinard, Annie.
Cold-climate constructed wetland applications in Canada and Northern China and modeling applications in the Canadian Arctic using SubWet 2.0
.
Degree: Civil Engineering, 2013, Queens University
URL: http://hdl.handle.net/1974/8432
► This comparative study explores the mechanisms of pollutant removal efficiency in cold-climate constructed wetlands (CWs) and investigates the benefits, standing and practicability of using these…
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▼ This comparative study explores the mechanisms of pollutant removal efficiency in cold-climate constructed wetlands (CWs) and investigates the benefits, standing and practicability of using these systems to treat wastewater in Canada and Northern China. Treatment efficiencies defined by the Canadian and Northern China experience vary considerably. Experience in both countries shows that the majority of effluent values are generally better than that required by discharge standards in Canada and China. A review of the available case studies on cold weather treatment in both countries indicates that this technology is feasible in Canada and Northern China, although further monitoring data are needed to optimize CW design and ensure that the effluent quality standards are consistently met.
In both of these countries and around the globe, increasingly strict water quality standards and the growing application of treatment wetlands for wastewater treatment is an important motive for the development of better numerical models as predictive process design tools. An investigation of the SubWet 2.0 model, a horizontal subsurface flow modeling program used to predict the level of treatment that can be expected was conducted. It has been shown that SubWet can consider the influence of several factors at one time, where empirical equations are generally not able to consider more than two factors at one time and usually in isolation of the other influential parameters. Three different data sets, two from natural wetlands from the Canadian Arctic and one from a CW in Africa were used to illustrate how SubWet can be calibrated to specific wetlands. Compared to other models, it is suggested that SubWet provides one of the best modeling options available for natural tundra wetlands. Further calibration of SubWet with twelve municipal treatment wetlands in the Canadian Arctic clearly demonstrated its ability to model treatment performance within natural tundra wetlands and thus provide an additional predictive tool to aid northern stakeholders in the treatment of municipal effluents. It is anticipated that increased monitoring and the generation of additional measured data will help to better identify the level of year to year variability and improve the overall predictive capability of the model.
Subjects/Keywords: Cold-Climate Region
;
Natural Tundra Wetlands
;
Modeling
;
Wastewater Treatment
;
SubWet 2.0
;
Treatment Wetlands
;
Constructed Wetlands
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APA (6th Edition):
Chouinard, A. (2013). Cold-climate constructed wetland applications in Canada and Northern China and modeling applications in the Canadian Arctic using SubWet 2.0
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/8432
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chouinard, Annie. “Cold-climate constructed wetland applications in Canada and Northern China and modeling applications in the Canadian Arctic using SubWet 2.0
.” 2013. Thesis, Queens University. Accessed April 14, 2021.
http://hdl.handle.net/1974/8432.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chouinard, Annie. “Cold-climate constructed wetland applications in Canada and Northern China and modeling applications in the Canadian Arctic using SubWet 2.0
.” 2013. Web. 14 Apr 2021.
Vancouver:
Chouinard A. Cold-climate constructed wetland applications in Canada and Northern China and modeling applications in the Canadian Arctic using SubWet 2.0
. [Internet] [Thesis]. Queens University; 2013. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1974/8432.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chouinard A. Cold-climate constructed wetland applications in Canada and Northern China and modeling applications in the Canadian Arctic using SubWet 2.0
. [Thesis]. Queens University; 2013. Available from: http://hdl.handle.net/1974/8432
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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