You searched for subject:(Phytoremediation).
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396 total matches.
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University of Georgia
1.
Barcellos, Diego.
Phytoremediation of soil and groundwater contaminated by chlorobenzene and benzene using Eucalyptus urograndis and Pinus taeda.
Degree: MS, Crop and Soil Sciences, 2013, University of Georgia
URL: http://purl.galileo.usg.edu/uga_etd/barcellos_diego_201312_ms 
► Soil and groundwater at a former pesticide factory in southern Brazil was contaminated by chlorobenzene and benzene, and we evaluated phytoremediation using trees. In a…
(more)
▼ Soil and groundwater at a former pesticide factory in southern Brazil was contaminated by chlorobenzene and benzene, and we evaluated
phytoremediation using trees. In a greenhouse experiment, we exposed Eucalyptus urograndis, Pinus taeda, and no-plant controls to an aqueous solution of chlorobenzene and benzene (50 mg L-1 each). Both trees enhanced contaminant mass removal from 5 to 50% relative to no-plant controls. In a field experiment in Brazil, the planted Eucalyptus urograndis reached 5 m height within one year in the presence of these contaminants. We estimate these trees could remove up to 4.53 and 0.93 kg year-1 of chlorobenzene and benzene, respectively, in the field experiment. Our work suggests Eucalyptus urograndis and Pinus taeda are strong candidates for accelerating the remediation of chlorobenzene and benzene in soil and shallow groundwater.
Advisors/Committee Members: Lawrence Morris.
Subjects/Keywords: Phytoremediation
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APA (6th Edition):
Barcellos, D. (2013). Phytoremediation of soil and groundwater contaminated by chlorobenzene and benzene using Eucalyptus urograndis and Pinus taeda. (Masters Thesis). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/barcellos_diego_201312_ms
Chicago Manual of Style (16th Edition):
Barcellos, Diego. “Phytoremediation of soil and groundwater contaminated by chlorobenzene and benzene using Eucalyptus urograndis and Pinus taeda.” 2013. Masters Thesis, University of Georgia. Accessed January 18, 2020.
http://purl.galileo.usg.edu/uga_etd/barcellos_diego_201312_ms.
MLA Handbook (7th Edition):
Barcellos, Diego. “Phytoremediation of soil and groundwater contaminated by chlorobenzene and benzene using Eucalyptus urograndis and Pinus taeda.” 2013. Web. 18 Jan 2020.
Vancouver:
Barcellos D. Phytoremediation of soil and groundwater contaminated by chlorobenzene and benzene using Eucalyptus urograndis and Pinus taeda. [Internet] [Masters thesis]. University of Georgia; 2013. [cited 2020 Jan 18].
Available from: http://purl.galileo.usg.edu/uga_etd/barcellos_diego_201312_ms.
Council of Science Editors:
Barcellos D. Phytoremediation of soil and groundwater contaminated by chlorobenzene and benzene using Eucalyptus urograndis and Pinus taeda. [Masters Thesis]. University of Georgia; 2013. Available from: http://purl.galileo.usg.edu/uga_etd/barcellos_diego_201312_ms
Central Connecticut State University
2.
Poole, Dennis P. (Dennis Patrick), 1979-.
Phytoremediation : A sustainable alternative to traditional brownfield remediation methodology.
Degree: Department of Biological Sciences, 2015, Central Connecticut State University
URL: http://content.library.ccsu.edu/u?/ccsutheses,2090
► The growing brownfield epidemic has to be addressed in such a way as to not further promote or produce secondary problems in the future. Conventional…
(more)
▼ The growing brownfield epidemic has to be addressed in such a way as to not further promote or produce secondary problems in the future. Conventional remediation methods can prove to be extremely costly due to their dependency on labor and heavy machinery. Secondly, many of these methods can pose serious health and environmental risks at any point during extraction, transportation or disposal. Due to the risk factors and the unpleasant aesthetics associated with the conditions of these sites during remediation along with the presence of heavy machinery, conventional remediation methods are also lacking in public support. Due to compounded environmental, economic and socioeconomic issues surrounding brownfields and conventional remediation, a more sustainable approach is critical. In response to this, extensive research is being directed into how plants break down or store an impressive array of toxic substances. Known as phytoremediation, this alternative method is gaining considerable support due to competitively lower cost and greater community support. In this paper I have outlined the benefits and detriments of the most commonly used conventional remediation methods and compared them with phytoremediation practices in terms of sustainability. Based on review articles and case studies, phytoremediation methods are convincingly the more sustainable choice due to a variety reasons. Despite this, phytoremediation methods represent only a small fraction of the projects currently under way. Critics point to factors such as prolonged time tables for growth, geographic applicability, and climatic effects as the pitfalls of phytoremediation. However, research into enhancing phytoremediation through the use of chelators and genetic engineering can greatly improve results.
"Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Arts in Biological Science: Global Sustainability."; Thesis advisor: Clayton Penniman.; M.S.,Central Connecticut State University,,2015.;
Advisors/Committee Members: Penniman, Clayton A..
Subjects/Keywords: Phytoremediation.
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APA (6th Edition):
Poole, Dennis P. (Dennis Patrick), 1. (2015). Phytoremediation : A sustainable alternative to traditional brownfield remediation methodology. (Thesis). Central Connecticut State University. Retrieved from http://content.library.ccsu.edu/u?/ccsutheses,2090
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):
Poole, Dennis P. (Dennis Patrick), 1979-. “Phytoremediation : A sustainable alternative to traditional brownfield remediation methodology.” 2015. Thesis, Central Connecticut State University. Accessed January 18, 2020.
http://content.library.ccsu.edu/u?/ccsutheses,2090.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Poole, Dennis P. (Dennis Patrick), 1979-. “Phytoremediation : A sustainable alternative to traditional brownfield remediation methodology.” 2015. Web. 18 Jan 2020.
Vancouver:
Poole, Dennis P. (Dennis Patrick) 1. Phytoremediation : A sustainable alternative to traditional brownfield remediation methodology. [Internet] [Thesis]. Central Connecticut State University; 2015. [cited 2020 Jan 18].
Available from: http://content.library.ccsu.edu/u?/ccsutheses,2090.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Poole, Dennis P. (Dennis Patrick) 1. Phytoremediation : A sustainable alternative to traditional brownfield remediation methodology. [Thesis]. Central Connecticut State University; 2015. Available from: http://content.library.ccsu.edu/u?/ccsutheses,2090
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Georgia
3.
Box, Stacey.
Greenhouse treatability studies on phytoremediation of perchloroethylene (PCE) and trichloroethylene (TCE) using black willow and eastern poplar.
Degree: MS, Geology, 2002, University of Georgia
URL: http://purl.galileo.usg.edu/uga_etd/box_stacey_h_200208_ms
► Greenhouse studies were conducted to determine the effectiveness of black willow, eastern poplar, and duckweed to uptake, transform, and degrade perchloroethylene (PCE) and trichloroethylene (TCE).…
(more)
▼ Greenhouse studies were conducted to determine the effectiveness of black willow, eastern poplar, and duckweed to uptake, transform, and degrade perchloroethylene (PCE) and trichloroethylene (TCE). Results indicate that both black willow and eastern poplar are capable of decontaminating solution concentrations of up to 20 mg/L of PCE and 45 mg/L TCE. High concentrations of 45 mg/L PCE were shown to be toxic to the plants. Duckweed did not exhibit the ability to degrade these compounds. The results indicate that black willow and eastern poplar can transform and degrade these recalcitrant compounds and have the potential for application to remediate shallow, contaminated soil and groundwater.
Advisors/Committee Members: Valentine Nzengung.
Subjects/Keywords: Phytoremediation
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APA (6th Edition):
Box, S. (2002). Greenhouse treatability studies on phytoremediation of perchloroethylene (PCE) and trichloroethylene (TCE) using black willow and eastern poplar. (Masters Thesis). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/box_stacey_h_200208_ms
Chicago Manual of Style (16th Edition):
Box, Stacey. “Greenhouse treatability studies on phytoremediation of perchloroethylene (PCE) and trichloroethylene (TCE) using black willow and eastern poplar.” 2002. Masters Thesis, University of Georgia. Accessed January 18, 2020.
http://purl.galileo.usg.edu/uga_etd/box_stacey_h_200208_ms.
MLA Handbook (7th Edition):
Box, Stacey. “Greenhouse treatability studies on phytoremediation of perchloroethylene (PCE) and trichloroethylene (TCE) using black willow and eastern poplar.” 2002. Web. 18 Jan 2020.
Vancouver:
Box S. Greenhouse treatability studies on phytoremediation of perchloroethylene (PCE) and trichloroethylene (TCE) using black willow and eastern poplar. [Internet] [Masters thesis]. University of Georgia; 2002. [cited 2020 Jan 18].
Available from: http://purl.galileo.usg.edu/uga_etd/box_stacey_h_200208_ms.
Council of Science Editors:
Box S. Greenhouse treatability studies on phytoremediation of perchloroethylene (PCE) and trichloroethylene (TCE) using black willow and eastern poplar. [Masters Thesis]. University of Georgia; 2002. Available from: http://purl.galileo.usg.edu/uga_etd/box_stacey_h_200208_ms
University of Georgia
4.
Lima, Amparo.
Genetic engineering of populus deltoides for arsenic phytoremediation and the establishment of an in vitro propagation system for Salix nigra.
Degree: MS, Forest Resources, 2003, University of Georgia
URL: http://purl.galileo.usg.edu/uga_etd/lima_amparo_200305_ms
► Arsenic pollution is an environmental problem affecting the health of millions of people worldwide. Unfortunately, conventional remediation technologies for this toxic pollutant are costly and…
(more)
▼ Arsenic pollution is an environmental problem affecting the health of millions of people worldwide. Unfortunately, conventional remediation technologies for this toxic pollutant are costly and environmentally destructive. An alternative to conventional remediation methods is
phytoremediation, the use of plants to extract pollutants from contaminated soil, water and air. Recent studies demonstrated that increasing the thiolsinks in transgenic plants by over-expressing the bacterial ã-glutamylcysteine synthetase gene resulted in a higher tolerance and accumulation of arsenic. To further explore the potential of transgenic plants to remove arsenate from polluted soil, we genetically engineered eastern cottonwood (Populus deltoides) trees to over-express ã-ECS and, we also established an in vitro propagation system for another
phytoremediation candidate, Salix nigra. Our results show that eastern cottonwood trees over-expressing the ã-ECS gene were able to grow normally on toxic levels of arsenate. We also established an in vitro regeneration system for Salix nigra from immature inflorescence explants.
Advisors/Committee Members: Scott A. Merkle.
Subjects/Keywords: Phytoremediation
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APA (6th Edition):
Lima, A. (2003). Genetic engineering of populus deltoides for arsenic phytoremediation and the establishment of an in vitro propagation system for Salix nigra. (Masters Thesis). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/lima_amparo_200305_ms
Chicago Manual of Style (16th Edition):
Lima, Amparo. “Genetic engineering of populus deltoides for arsenic phytoremediation and the establishment of an in vitro propagation system for Salix nigra.” 2003. Masters Thesis, University of Georgia. Accessed January 18, 2020.
http://purl.galileo.usg.edu/uga_etd/lima_amparo_200305_ms.
MLA Handbook (7th Edition):
Lima, Amparo. “Genetic engineering of populus deltoides for arsenic phytoremediation and the establishment of an in vitro propagation system for Salix nigra.” 2003. Web. 18 Jan 2020.
Vancouver:
Lima A. Genetic engineering of populus deltoides for arsenic phytoremediation and the establishment of an in vitro propagation system for Salix nigra. [Internet] [Masters thesis]. University of Georgia; 2003. [cited 2020 Jan 18].
Available from: http://purl.galileo.usg.edu/uga_etd/lima_amparo_200305_ms.
Council of Science Editors:
Lima A. Genetic engineering of populus deltoides for arsenic phytoremediation and the establishment of an in vitro propagation system for Salix nigra. [Masters Thesis]. University of Georgia; 2003. Available from: http://purl.galileo.usg.edu/uga_etd/lima_amparo_200305_ms
University of Georgia
5.
Dai, Jianliang.
Enhancing the productivity of hybrid hardwood embryogenic cultures and genetic transformation of hybrid sweetgum for mercury phytoremediation.
Degree: PhD, Forest Resources, 2003, University of Georgia
URL: http://purl.galileo.usg.edu/uga_etd/dai_jianliang_200308_phd
► Mercury pollution is a worldwide environmental problem with tens of thousands of contaminated sites. Phytoremediation is an environmentally friendly solution relying on long-lived plants like…
(more)
▼ Mercury pollution is a worldwide environmental problem with tens of thousands of contaminated sites.
Phytoremediation is an environmentally friendly solution relying on long-lived plants like trees to clean contaminated soil, water and air. To explore the potential of transgenic hybrid hardwood trees to clean mercury pollutants, we first established efficient somatic embryogenesis systems for hybrid yellow-poplar (Liriodendron tulipifera × L. chinense) and hybrid sweetgum (Liquidambar styracifula × L. formosana). Embryogenic cultures of both hybrids, consisting of proembryogenic masses (PEMs), were initiated from immature hybrid seeds on induction-maintenance medium (IMM) supplemented with plant growth regulators (PGRs) and casein hydrolysate (CH). For hybrid yellow-poplar, a high number of germinable embryos were produced when PEMs were grown in liquid IMM lacking CH, followed by size fractionation and plating on semisolid embryo development medium without CH, but with abscisic acid. For hybrid sweetgum, a high number of germinable embryos were produced on development medium without any PGRs or other supplements after PEMs were grown in liquid IMM without CH, but with glutamine, asparagine and arginine. Using Agrobacterium-mediated gene transfer, transgenic hybrid sweetgum lines were generated either overexpressing a y -glutamylcysteine synthetase gene (y -ECS), or expressing modified mercuric ion reductase genes (merA). Hybrid sweetgum PEMs transformed with y -ECS driven by an actin promoter (ACT2) were able to grow in the presence of 50 µM HgCl2, which inhibited wild-type PEMs. However, abnormal plantlets were regenerated from the y -ECS PEMs and they did not survive for more than a few weeks following germination. Mature somatic embryos generated from 35S:merA9 and 35S:merA18 PEMs were capable of conversion to normal plantlets on germination medium containing 25 µM HgCl2, by converting ionic mercury into its volatile, elemental form, Hg(0). Somatic embryos generated from ACT2:merA77 PEMs converted to plantlets, but these remained unhealthy on Hg(II)-medium. Transgenic merA plantlets released Hg(0) 2-3 times more efficiently than the wild-type plantlets. These results indicate that the y -ECS gene may significantly affect the regeneration capacity of hybrid sweeetgum PEMs and the growth of the plants. Hybrid sweeetgum plants expressing modified merA genes driven by a 35S promoter may provide a means for
phytoremediation of mercury pollution.
Advisors/Committee Members: Scott Merkle.
Subjects/Keywords: Phytoremediation
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APA (6th Edition):
Dai, J. (2003). Enhancing the productivity of hybrid hardwood embryogenic cultures and genetic transformation of hybrid sweetgum for mercury phytoremediation. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/dai_jianliang_200308_phd
Chicago Manual of Style (16th Edition):
Dai, Jianliang. “Enhancing the productivity of hybrid hardwood embryogenic cultures and genetic transformation of hybrid sweetgum for mercury phytoremediation.” 2003. Doctoral Dissertation, University of Georgia. Accessed January 18, 2020.
http://purl.galileo.usg.edu/uga_etd/dai_jianliang_200308_phd.
MLA Handbook (7th Edition):
Dai, Jianliang. “Enhancing the productivity of hybrid hardwood embryogenic cultures and genetic transformation of hybrid sweetgum for mercury phytoremediation.” 2003. Web. 18 Jan 2020.
Vancouver:
Dai J. Enhancing the productivity of hybrid hardwood embryogenic cultures and genetic transformation of hybrid sweetgum for mercury phytoremediation. [Internet] [Doctoral dissertation]. University of Georgia; 2003. [cited 2020 Jan 18].
Available from: http://purl.galileo.usg.edu/uga_etd/dai_jianliang_200308_phd.
Council of Science Editors:
Dai J. Enhancing the productivity of hybrid hardwood embryogenic cultures and genetic transformation of hybrid sweetgum for mercury phytoremediation. [Doctoral Dissertation]. University of Georgia; 2003. Available from: http://purl.galileo.usg.edu/uga_etd/dai_jianliang_200308_phd
University of Georgia
6.
Ekman, Drew Robert.
Transcriptional profiling of Arabidopsis thaliana responses to TNT and RDX: a route to plant improvement for phytoremediation.
Degree: PhD, Biochemistry and Molecular Biology, 2003, University of Georgia
URL: http://purl.galileo.usg.edu/uga_etd/ekman_drew_r_200308_phd
► Serial Analysis of Gene Expression (SAGE) was used to profile transcript levels in Arabidopsis thaliana roots and assess their responses to 2,4,6-trinitrotoluene (TNT) and 1,3,5-hexahydro-1,3,5-triazine…
(more)
▼ Serial Analysis of Gene Expression (SAGE) was used to profile transcript levels in Arabidopsis thaliana roots and assess their responses to 2,4,6-trinitrotoluene (TNT) and 1,3,5-hexahydro-1,3,5-triazine (RDX) exposure. SAGE libraries representing control, TNT, and RDX-exposed seedling root transcripts were constructed, and each was sequenced to a depth of roughly 30,000 tags. More than 19,000 unique tags were identified overall. Upon TNT exposure, the second most highly induced tag (27-fold increase) represented a glutathione S-transferase. Several cytochrome P450 enzymes, as well as an ABC transporter, were also highly induced by TNT exposure. These analyses also revealed an oxidative stress response upon TNT exposure. RDX exposure also induced a number of transcripts including: molecular chaperones and transcription factors, as well as vacuolar proteins and peroxidases. Comparison of these transcripts to those induced by TNT, identified significant differences, suggesting drastically different mechanisms for the metabolism of these two compounds. Preliminary DNA microarray analyses were also used to verify the expression levels of transcripts affected by TNT as identified previously by SAGE. Identification of transcriptome-level responses to TNT and RDX exposure will better define the metabolic pathways plants use to detoxify these xenobiotic compounds, which should help us improve
phytoremediation strategies directed at these and other nitroaromatic compounds.
Advisors/Committee Members: Jeffrey Dean.
Subjects/Keywords: Phytoremediation
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APA (6th Edition):
Ekman, D. R. (2003). Transcriptional profiling of Arabidopsis thaliana responses to TNT and RDX: a route to plant improvement for phytoremediation. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/ekman_drew_r_200308_phd
Chicago Manual of Style (16th Edition):
Ekman, Drew Robert. “Transcriptional profiling of Arabidopsis thaliana responses to TNT and RDX: a route to plant improvement for phytoremediation.” 2003. Doctoral Dissertation, University of Georgia. Accessed January 18, 2020.
http://purl.galileo.usg.edu/uga_etd/ekman_drew_r_200308_phd.
MLA Handbook (7th Edition):
Ekman, Drew Robert. “Transcriptional profiling of Arabidopsis thaliana responses to TNT and RDX: a route to plant improvement for phytoremediation.” 2003. Web. 18 Jan 2020.
Vancouver:
Ekman DR. Transcriptional profiling of Arabidopsis thaliana responses to TNT and RDX: a route to plant improvement for phytoremediation. [Internet] [Doctoral dissertation]. University of Georgia; 2003. [cited 2020 Jan 18].
Available from: http://purl.galileo.usg.edu/uga_etd/ekman_drew_r_200308_phd.
Council of Science Editors:
Ekman DR. Transcriptional profiling of Arabidopsis thaliana responses to TNT and RDX: a route to plant improvement for phytoremediation. [Doctoral Dissertation]. University of Georgia; 2003. Available from: http://purl.galileo.usg.edu/uga_etd/ekman_drew_r_200308_phd
University of Alberta
7.
Kneteman, Kelly A.
Phytoremediation of Nitrogen Impacted Soil and Groundwater
at a Fertilizer Facility in Central Alberta.
Degree: MS, Department of Renewable Resources, 2012, University of Alberta
URL: https://era.library.ualberta.ca/files/5425kc08r
► In-situ remediation techniques such as phytoremediation have shown promise as economical alternatives for reducing the risk of environmental contaminants at impacted sites. Research trials were…
(more)
▼ In-situ remediation techniques such as
phytoremediation have shown promise as economical alternatives for
reducing the risk of environmental contaminants at impacted sites.
Research trials were initiated to determine the efficacy of
phytoremediation for soil and groundwater contaminated with high
levels of nitrogen fertilizer at a fertilizer plant in Alberta,
Canada. Experimental trials were conducted in environmental growth
chambers, and carried out for a growing degree day period
equivalent to an average growing season. Initially, plant growth
trials were conducted with soils artificially contaminated with
varying levels of ammonium nitrate to determine the approximate
upper limit of plant nitrogen tolerance. Historically contaminated
soil and groundwater containing high levels of ammonium, nitrate,
phosphate and sulfate fertilizers was then investigated using
electromagnetic surveying, sampling and chemical analysis. Using
this data, samples were collected and growth chamber experiments
designed to determine if plants could assist in the remediation of
naturally occurring soils and groundwater contaminated with excess
fertilizer. Results indicate that plants can take up excess soil
nitrogen caused by fertilizer contamination. Phytoremediation is
potentially effective under conditions where soils are contaminated
by high concentrations of a variety of plant nutrients so long as
conditions are not phytotoxic, as well as being economical,
sustainable and aesthetically pleasing. The results of this
research may be used to develop phytoremediation programs at
western Canadian fertilizer facilities.
Subjects/Keywords: nitrogen; phytoremediation
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APA (6th Edition):
Kneteman, K. A. (2012). Phytoremediation of Nitrogen Impacted Soil and Groundwater
at a Fertilizer Facility in Central Alberta. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/5425kc08r
Chicago Manual of Style (16th Edition):
Kneteman, Kelly A. “Phytoremediation of Nitrogen Impacted Soil and Groundwater
at a Fertilizer Facility in Central Alberta.” 2012. Masters Thesis, University of Alberta. Accessed January 18, 2020.
https://era.library.ualberta.ca/files/5425kc08r.
MLA Handbook (7th Edition):
Kneteman, Kelly A. “Phytoremediation of Nitrogen Impacted Soil and Groundwater
at a Fertilizer Facility in Central Alberta.” 2012. Web. 18 Jan 2020.
Vancouver:
Kneteman KA. Phytoremediation of Nitrogen Impacted Soil and Groundwater
at a Fertilizer Facility in Central Alberta. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2020 Jan 18].
Available from: https://era.library.ualberta.ca/files/5425kc08r.
Council of Science Editors:
Kneteman KA. Phytoremediation of Nitrogen Impacted Soil and Groundwater
at a Fertilizer Facility in Central Alberta. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/5425kc08r
University of Manitoba
8.
Hassan, Adenike.
Phytoremediation of municipal biosolids: Terrestrial and wetland approaches.
Degree: Soil Science, 2014, University of Manitoba
URL: http://hdl.handle.net/1993/25170
► Growth room experiments were conducted to examine terrestrial and wetland-based phytoremediation approaches as alternatives to biosolids management. Results from both experiments show that biosolids do…
(more)
▼ Growth room experiments were conducted to examine terrestrial and wetland-based
phytoremediation approaches as alternatives to biosolids management. Results from both
experiments show that biosolids do not need to be amended with soil to encourage plant
growth and optimize biomass yields. In the terrestrial
phytoremediation approach, two
harvests per growth cycle produced greater switchgrass biomass yield than a single
harvest but had no significant effect on cattail biomass yield during the first cycle.
Repeated harvesting also significantly increased mean nutrient uptake in Cycle 1,
reflecting the greater biomass yield from two harvests compared with a single harvest. In
the wetland experiment, nutrient phytoextraction under two harvests was 4.25% of initial
N content and 2.28% of initial P content compared with 2.9% and 1.58%, respectively,
under a single harvest. Terrestrial
phytoremediation could be beneficial to small
communities that cannot afford the costly excavation, trucking, and eventual spreading of biosolids on agricultural land.
Advisors/Committee Members: Zvomuya, Francis (Soil Science) (supervisor), Goh, Tee Boon (Soil Science) Cicek, Nazim (Biosystems Engineering) Badiou, Pascal (Soil Science) (examiningcommittee).
Subjects/Keywords: Phytoremediation; constructed wetland
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APA (6th Edition):
Hassan, A. (2014). Phytoremediation of municipal biosolids: Terrestrial and wetland approaches. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/25170
Chicago Manual of Style (16th Edition):
Hassan, Adenike. “Phytoremediation of municipal biosolids: Terrestrial and wetland approaches.” 2014. Masters Thesis, University of Manitoba. Accessed January 18, 2020.
http://hdl.handle.net/1993/25170.
MLA Handbook (7th Edition):
Hassan, Adenike. “Phytoremediation of municipal biosolids: Terrestrial and wetland approaches.” 2014. Web. 18 Jan 2020.
Vancouver:
Hassan A. Phytoremediation of municipal biosolids: Terrestrial and wetland approaches. [Internet] [Masters thesis]. University of Manitoba; 2014. [cited 2020 Jan 18].
Available from: http://hdl.handle.net/1993/25170.
Council of Science Editors:
Hassan A. Phytoremediation of municipal biosolids: Terrestrial and wetland approaches. [Masters Thesis]. University of Manitoba; 2014. Available from: http://hdl.handle.net/1993/25170
Queens University
9.
Columbus, Melanie.
A Comparison of the Ability of Two Lines of Hybrid Poplars (DN34 and NM1) to Phytovolatilize 1,4-Dioxane in Laboratory and Field Settings
.
Degree: Biology, 2014, Queens University
URL: http://hdl.handle.net/1974/12142
► Phytoremediation technologies offer an economical and practical alternative to traditional remediation technologies. This study attempted to quantify and compare the ability of DN34 and NM1…
(more)
▼ Phytoremediation technologies offer an economical and practical alternative to traditional remediation technologies. This study attempted to quantify and compare the ability of DN34 and NM1 varieties of hybrid poplars to phytovolatilize the organic contaminant 1,4-dioxane. Research included laboratory experiments and those at an old industrial field site containing 1,4-dioxane and other organic contaminants. Under laboratory conditions it was found that when DN34 was exposed to 36 ppm of 1,4-dioxane in hydroponic solution it had a significantly higher transpiration rate than NM1. There were no toxic effects of the contaminant on the plants. Additionally, the DN34 variety was able to remove 48.7 ± 11.6 % (mean ± standard error) of the dioxane from aqueous solution compared to 41.7 ± 10.0 % removed by NM1. Water availability at the field site had a significant effect on growth rate whereas soil type and contaminant concentration did not appear to have any affect. It was apparent that DN34 had a significantly higher transpiration rates than NM1 in a dry, 2007 season, while the opposite was true during a wet, 2008 season. Interestingly, the DN34 variety had lower transpiration rates in the wet season than in the dry season. The presence of the co-contaminant ethylene glycol affected transpiration rate in the NM1 variety but not the DN34 variety. The NM1 variety had a decrease in transpiration rate of 42 and 30 % when growing in a mid-range concentration (≤ 1000 ppm) of ethylene glycol compared to a low concentration (≤ 100 ppm) of ethylene glycol in the wet and dry seasons, respectively. Unfortunately, detection of 1,4-dioxane removal by trees at the field site was difficult to achieve.
Subjects/Keywords: Phytoremediation;
Hybrid Poplars
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APA (6th Edition):
Columbus, M. (2014). A Comparison of the Ability of Two Lines of Hybrid Poplars (DN34 and NM1) to Phytovolatilize 1,4-Dioxane in Laboratory and Field Settings
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/12142
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):
Columbus, Melanie. “A Comparison of the Ability of Two Lines of Hybrid Poplars (DN34 and NM1) to Phytovolatilize 1,4-Dioxane in Laboratory and Field Settings
.” 2014. Thesis, Queens University. Accessed January 18, 2020.
http://hdl.handle.net/1974/12142.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Columbus, Melanie. “A Comparison of the Ability of Two Lines of Hybrid Poplars (DN34 and NM1) to Phytovolatilize 1,4-Dioxane in Laboratory and Field Settings
.” 2014. Web. 18 Jan 2020.
Vancouver:
Columbus M. A Comparison of the Ability of Two Lines of Hybrid Poplars (DN34 and NM1) to Phytovolatilize 1,4-Dioxane in Laboratory and Field Settings
. [Internet] [Thesis]. Queens University; 2014. [cited 2020 Jan 18].
Available from: http://hdl.handle.net/1974/12142.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Columbus M. A Comparison of the Ability of Two Lines of Hybrid Poplars (DN34 and NM1) to Phytovolatilize 1,4-Dioxane in Laboratory and Field Settings
. [Thesis]. Queens University; 2014. Available from: http://hdl.handle.net/1974/12142
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
10.
Adki, Vinayak Sunilkumar.
Phytoremediation approach for removal of environmental
pollutants;.
Degree: 2015, Shivaji University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/44981
newline
t16722 / 874
Advisors/Committee Members: Bapat, V. A..Subjects/Keywords: Biotechnology; Phytoremediation
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APA (6th Edition):
Adki, V. S. (2015). Phytoremediation approach for removal of environmental
pollutants;. (Thesis). Shivaji University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/44981
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):
Adki, Vinayak Sunilkumar. “Phytoremediation approach for removal of environmental
pollutants;.” 2015. Thesis, Shivaji University. Accessed January 18, 2020.
http://shodhganga.inflibnet.ac.in/handle/10603/44981.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Adki, Vinayak Sunilkumar. “Phytoremediation approach for removal of environmental
pollutants;.” 2015. Web. 18 Jan 2020.
Vancouver:
Adki VS. Phytoremediation approach for removal of environmental
pollutants;. [Internet] [Thesis]. Shivaji University; 2015. [cited 2020 Jan 18].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/44981.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Adki VS. Phytoremediation approach for removal of environmental
pollutants;. [Thesis]. Shivaji University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/44981
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
NSYSU
11.
Wu, Yu-Ming.
Treatment of Dioxin and Mercury Contaminated Soil by Phytoremediation.
Degree: PhD, Marine Environment and Engineering, 2013, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0601113-202958
► The purpose of this study is to investigate the treatment efficiencies of PCDD/Fs and Hg contaminated soil by phytoremediation, and to learn the translocation and…
(more)
▼ The purpose of this study is to investigate the treatment efficiencies of PCDD/Fs and Hg contaminated soil by
phytoremediation, and to learn the translocation and distribution of PCDD/Fs and Hg in the plant tissues. In addition, the object of tests of adding amendments (citric acid, P. mendocina NSYSU and EDTA) into the testing systems are to assess the effects of plants on removal rates of PCDD/Fs and Hg from the contaminated soil. The results of this research were expected to provide important reference for remediating similar contaminated sites in the future. In this study, the pot tests in greenhouse were conducted by using the contaminated soils sampled from China Petrochemical Development Corporation (CPDC) An-shun site located in Tainan City, Taiwan. The selected plant species included Bidens pilosa, Leucaena glauca, Vetiver, Paspalum vaginatum, Commelina diffusa, Maize, Physic Nut and Squash. These plant species were all characterized as rapid growth, so it would be helpful and convenient for using them in different stages of test runs.
The experimental results showed that the toxicity of PCDD/Fs and Hg might inhibit the growth of plants. The higher the concentrations of PCDD/Fs were controlled in soils, the less the height and biomass of the plant were observed. In addition, the plant roots were found able to promote the activities and diversity of microbial in the areas of rhizosphere. Besides, the congener profiles and concentration levels of PCDD/Fs between the contaminated soil and the shoot and root of plant species are highly positive correlation. In this study, it is also confirmed that the PCDD/Fs and Hg were first phytoextracted into the plant roots, and then were translocated into the shoot. However, the concentrations of PCDD/Fs and Hg of root were measured much higher than the shoot. The results of tests of adding amendments showed that citric acid, P. mendocina NSYSU and EDTA would promote the uptake ability of plants for PCDD/Fs and Hg, especially the plant species of vetiver and maize. In additions, adding EDTA into test systems presented effective improvement for the plant species of vetiver and maize uptaking Hg. The experimental results for PCDD/Fs and Hg accumulating in plant tissues showed that the species of vetiver performed better than the species of maize, which meant that the species of vetiver exhibited better resistance and higher biomass than the species of maize. Moreover, the removal rates of PCDD/Fs from soils were found higher for the species of maize than the species of vetiver. However, for Hg removal rates, the experimental results indicated that the species of vetiver was found greater than the species of maize. Thus, the removal effects of PCDD/Fs and Hg from contaminated soils would vary with the different plant species. It was concluded that the higher capability of extracting PCDD/Fs and Hg into plant tissues and the ability of promoting the rhizosphere microbial activity make both species of vetiver and maize become suitable candidates for
phytoremediation in soils…
Advisors/Committee Members: Chang Juu-En (chair), Yang Lei (committee member), Huang Chieh-Chen (chair), Liu Jong-Kang (chair), Jimmy Chi-Ming Kao (chair).
Subjects/Keywords: Dioxins; Phytoremediation; Amendment; Mercury; Furans
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APA (6th Edition):
Wu, Y. (2013). Treatment of Dioxin and Mercury Contaminated Soil by Phytoremediation. (Doctoral Dissertation). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0601113-202958
Chicago Manual of Style (16th Edition):
Wu, Yu-Ming. “Treatment of Dioxin and Mercury Contaminated Soil by Phytoremediation.” 2013. Doctoral Dissertation, NSYSU. Accessed January 18, 2020.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0601113-202958.
MLA Handbook (7th Edition):
Wu, Yu-Ming. “Treatment of Dioxin and Mercury Contaminated Soil by Phytoremediation.” 2013. Web. 18 Jan 2020.
Vancouver:
Wu Y. Treatment of Dioxin and Mercury Contaminated Soil by Phytoremediation. [Internet] [Doctoral dissertation]. NSYSU; 2013. [cited 2020 Jan 18].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0601113-202958.
Council of Science Editors:
Wu Y. Treatment of Dioxin and Mercury Contaminated Soil by Phytoremediation. [Doctoral Dissertation]. NSYSU; 2013. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0601113-202958
Louisiana State University
12.
Fontenot, Kathryn Karsh.
The feasibility of using select landscape species for phytoremediation of cumene and 4-cumylphenol contaminated groundwater.
Degree: PhD, 2009, Louisiana State University
URL: etd-04092009-223000
;
https://digitalcommons.lsu.edu/gradschool_dissertations/3857
► Chemical manufactures are often associated with a negative publicity due to chemical spills that can cause human health problems and environmental pollution. Innovative methods such…
(more)
▼ Chemical manufactures are often associated with a negative publicity due to chemical spills that can cause human health problems and environmental pollution. Innovative methods such as phytoremediation in lieu of traditional remediation methods are being researched to determine environmentally friendly options for remediation. Phytoremediation was studied as an alternative remediation method for removal of chemicals in a contaminated groundwater plume in Louisiana. The main constituents of concern in the plume were cumene and 4-cumylphenol. Two pilot phytotoxicity studies were funded to determine an optimum tree species for removal and control of the constituents of concern. A greenhouse and hydroponic system were constructed to test Taxodium distichum, Salix nigra, Juniperus virginiana, Pinus glabra, Populus deltoids, and Quercus nigra for their phytoremediation capabilities. Both phytotoxicity pilot studies covered a nine month growing period. Trees in the first study were subjected to six water treatments from three of the contaminated groundwater plume monitoring wells. Treatments included undiluted well water containing the constituents of concern; well water containing high salinity levels (above 2.0mS); and several dilutions of each. Three water treatments were tested in the second pilot study, high, low, and deionized water. The high and low water treatments were based on historically recorded high levels of contamination in the plume water. Trees were evaluated monthly for possible health affects of the constituents of concern. Monthly height, trunk diameter, and foliage visual ratings were taken. Initial and final tissue (root and shoot) and soil samples were collected and analyzed for the potential presence and concentrations of the constituents of concern in the tissue and potting media. Monthly water input and discharge samples were collected and analyzed for the constituents of concern. Results from the pilot studies indicated that both the Salix nigra and Taxodium distichum species were acceptable phytoremediation choices. However, Taxodium distichum was selected for the full scale planting over the groundwater plume because it was tolerant of the contaminated water treatments and salinity levels present in the groundwater. Additionally, Taxodium distichum was a low maintenance tree with a conical form that complied with security restrictions at the chemical facility.
Subjects/Keywords: phytoremediation; cumene; 4-cumylphenol
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APA (6th Edition):
Fontenot, K. K. (2009). The feasibility of using select landscape species for phytoremediation of cumene and 4-cumylphenol contaminated groundwater. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-04092009-223000 ; https://digitalcommons.lsu.edu/gradschool_dissertations/3857
Chicago Manual of Style (16th Edition):
Fontenot, Kathryn Karsh. “The feasibility of using select landscape species for phytoremediation of cumene and 4-cumylphenol contaminated groundwater.” 2009. Doctoral Dissertation, Louisiana State University. Accessed January 18, 2020.
etd-04092009-223000 ; https://digitalcommons.lsu.edu/gradschool_dissertations/3857.
MLA Handbook (7th Edition):
Fontenot, Kathryn Karsh. “The feasibility of using select landscape species for phytoremediation of cumene and 4-cumylphenol contaminated groundwater.” 2009. Web. 18 Jan 2020.
Vancouver:
Fontenot KK. The feasibility of using select landscape species for phytoremediation of cumene and 4-cumylphenol contaminated groundwater. [Internet] [Doctoral dissertation]. Louisiana State University; 2009. [cited 2020 Jan 18].
Available from: etd-04092009-223000 ; https://digitalcommons.lsu.edu/gradschool_dissertations/3857.
Council of Science Editors:
Fontenot KK. The feasibility of using select landscape species for phytoremediation of cumene and 4-cumylphenol contaminated groundwater. [Doctoral Dissertation]. Louisiana State University; 2009. Available from: etd-04092009-223000 ; https://digitalcommons.lsu.edu/gradschool_dissertations/3857
Louisiana State University
13.
Ryan, Veronica A.
Phytoremediation of a high phosphorus soil by summer and winter hay harvest.
Degree: MS, 2006, Louisiana State University
URL: etd-07112006-125540
;
https://digitalcommons.lsu.edu/gradschool_theses/4246
► Phosphorus (P) loading into surface water from runoff and subsurface flow leaving soils subjected to long-term applications of poultry litter (PL) will degrade water quality.…
(more)
▼ Phosphorus (P) loading into surface water from runoff and subsurface flow leaving soils subjected to long-term applications of poultry litter (PL) will degrade water quality. A practical way to reduce such loading is to remove soil P through plant uptake and harvest removal. The primary field study presented here examined the effectiveness of hay harvest utilizing a double-cropped system - perennial warm-season forage grass, common bermudagrass (CB; Cynodon dactylon (L.) Pers.), overseeded with annual ryegrass (ARG; Lolium multiflorum Lam.), a cool-season forage, in reducing soil P from a Ruston fine-sandy loam impacted by PL amendments. A secondary field study similarly examined CB, bahiagrass (BG; (Paspalum notatum Flugge.), crabgrass (CG; Digitaria sanguinalis (L.) Scop.) and switchgrass (SG; Panicum virgatum L.). The primary study was conducted as a randomized block design with three replicate plots of four previous rates of PL (0, 5, 10 and 20 Mg ha-1) applied annually (1996-2001) to CB sod, at the Calhoun Research Station in Calhoun, Louisiana. Following the last PL application, plots were overseeded with ARG in Fall 2001, forage harvested and analyzed for dry matter yield, tissue P concentration and P removal. Double-cropped ARG and CB were harvested as hay and analyzed as above through 2005, giving four years of data. In Spring 2002, four small sub-plots BG, CB, CG and SG were established in the upper end of the main plots used in the primary study and corresponding data for these warm-season forages was collected for three years. Over four years, ARG removed more soil P than did CB (112 vs. 76 kg P ha-1, averaged across all rates of previous PL application and soil Bray2 P levels) because of higher tissue P concentration. The double-cropped hay system, therefore, removed nearly 200 kg P ha-1 or reduced soil P by about 100 mg kg-1. Despite low tissue P concentration, high biomass production by SG extracted an average of 64 kg P ha-1 annually over three years. This rate was significantly greater than that for CB, BG or CB, and perhaps equaled or exceeded the combined rate for ARG and CB in the double-cropped system.
Subjects/Keywords: phytoremediation phosphorus
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Manager
APA (6th Edition):
Ryan, V. A. (2006). Phytoremediation of a high phosphorus soil by summer and winter hay harvest. (Masters Thesis). Louisiana State University. Retrieved from etd-07112006-125540 ; https://digitalcommons.lsu.edu/gradschool_theses/4246
Chicago Manual of Style (16th Edition):
Ryan, Veronica A. “Phytoremediation of a high phosphorus soil by summer and winter hay harvest.” 2006. Masters Thesis, Louisiana State University. Accessed January 18, 2020.
etd-07112006-125540 ; https://digitalcommons.lsu.edu/gradschool_theses/4246.
MLA Handbook (7th Edition):
Ryan, Veronica A. “Phytoremediation of a high phosphorus soil by summer and winter hay harvest.” 2006. Web. 18 Jan 2020.
Vancouver:
Ryan VA. Phytoremediation of a high phosphorus soil by summer and winter hay harvest. [Internet] [Masters thesis]. Louisiana State University; 2006. [cited 2020 Jan 18].
Available from: etd-07112006-125540 ; https://digitalcommons.lsu.edu/gradschool_theses/4246.
Council of Science Editors:
Ryan VA. Phytoremediation of a high phosphorus soil by summer and winter hay harvest. [Masters Thesis]. Louisiana State University; 2006. Available from: etd-07112006-125540 ; https://digitalcommons.lsu.edu/gradschool_theses/4246
University of Saskatchewan
14.
Templeton, Bethany 1989-.
Survey of Canadian native plant species for resistance to salt and metal stress.
Degree: 2018, University of Saskatchewan
URL: http://hdl.handle.net/10388/8537
► There are over 21, 000 federally managed metal contaminated soil sites in Canada, not including sites managed by the private sector or sites affected by…
(more)
▼ There are over 21, 000 federally managed metal contaminated soil sites in Canada, not including sites managed by the private sector or sites affected by other contaminants requiring some level of remediation. One of the most economical remediation options, especially on a large scale, is
phytoremediation.
Phytoremediation is a process where plants and their associated microbes uptake, break down, or immobilize target soil contaminants. Native plant species are important to consider for
phytoremediation since their lifecycles are acclimatized to local soil and weather and are not at risk of becoming invasive. The purpose of this thesis was to assess Canadian native plant species used in soil reclamation for their resistance to metals and salts found in oil sands mine tailings. To determine germination and growth inhibition concentrations of salts and metals, seeds were exposed to various metal and salt concentrations in semi-solid water agar. Germination and early growth of Achillea millefolium (common yarrow), Astragalus canadensis (Canadian milkvetch), Calamovilfa longifolia (Prairie sandreed), Koeleria macrantha (Prairie Junegrass), and Vicia americana (American vetch) were assessed in a lab bioassay using semi-solid water agar, and in a greenhouse experiment, using soil. The semi-solid water agar and soil were artificially contaminated with either a metal [Cd(NO3)2, Cr(NO3)2, Cu(NO3)2, Ni(NO3)2], or salt (KCl, NaCl, K2SO4, Na2SO4).
In the bioassay, germination was inhibited by salts (0, 1000, 10 000, 100 000 mg kg-1) for all species at concentrations exceeding 1000 mg kg-1. Koeleria macrantha was the only species that was inhibited by metals at 20 and 50 mg kg-1 Cd and Cu. Roots and shoots exhibited stunting for many of the metal concentrations, and in salt concentrations exceeding 1000 mg kg-1.
In the greenhouse experiment, metal concentrations (0, 10, 20, 50 mg kg-1) had no effect on germination and there was no significant difference (p<0.05) between the biomass of control plants and plants grown in the metal contaminated soil. Seeds struggled to germinate in salt contaminated soil (0, 1000, 5000 mg kg-1), mostly in the chloride amended soil, and produced very little biomass. The most promising candidate from the experiments was A. millefolium since it had the highest germination, and the longest root and shoot lengths in the bioassay study. Also, it produced the highest biomass in the greenhouse study, and was able to grow in chloride amended soil, which significantly inhibited other species. Results suggest A. millefolium should be the focus of future studies.
Advisors/Committee Members: Germida, Jim J, Walley, Fran, Hecker, Markus, van Rees, Ken, Tanino, Karen.
Subjects/Keywords: native plants; phytoremediation; metals; salts
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APA (6th Edition):
Templeton, B. 1. (2018). Survey of Canadian native plant species for resistance to salt and metal stress. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/8537
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):
Templeton, Bethany 1989-. “Survey of Canadian native plant species for resistance to salt and metal stress.” 2018. Thesis, University of Saskatchewan. Accessed January 18, 2020.
http://hdl.handle.net/10388/8537.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Templeton, Bethany 1989-. “Survey of Canadian native plant species for resistance to salt and metal stress.” 2018. Web. 18 Jan 2020.
Vancouver:
Templeton B1. Survey of Canadian native plant species for resistance to salt and metal stress. [Internet] [Thesis]. University of Saskatchewan; 2018. [cited 2020 Jan 18].
Available from: http://hdl.handle.net/10388/8537.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Templeton B1. Survey of Canadian native plant species for resistance to salt and metal stress. [Thesis]. University of Saskatchewan; 2018. Available from: http://hdl.handle.net/10388/8537
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Melbourne
15.
Popa, Kerryn Michelle.
Phytoextraction of cadmium by species of the Brassicaceae.
Degree: 2015, University of Melbourne
URL: http://hdl.handle.net/11343/59148
► This thesis contributes to the knowledge of metal-tolerant and metal-accumulating plant species for use in the field of phytoremediation. A broader range of species of…
(more)
▼ This thesis contributes to the knowledge of metal-tolerant and metal-accumulating plant species for use in the field of phytoremediation. A broader range of species of Brassicaceae has been assessed for cadmium tolerance and uptake than has previously been tested.
Cadmium (Cd) was chosen as the target metal for phytoremediation due to its high toxicity at low contaminating concentrations. The Brassicaceae family is an important potential source of species for phytoremediation as it is host to the largest number of metal hyperaccumulating species and also includes metal-tolerant species capable of accumulating various metals, including Cd. The capability of untested members of the family Brassicaceae to accumulate and tolerate Cd, the effect of Cd exposure and concentration on shoot nutrient homeostasis and the effect of Cd exposure and concentration on the expression of metal transporter HMA4 was investigated in hydroponic experiments. The feasibility of candidate species to phytoextract Cd from contaminated soils and biosolids was assessed in both glasshouse and field conditions. In addition, the localisation of Cd in aerial tissue was investigated.
Of 19 previously untested species encompassing four genera of the Brassicaceae, five species, B. oleracea gongylodes (kohl rabi), B. oleracea capitata (cabbage, variety Golden Acre), B. oleracea (collards), B. oleracea acephala (kale, Half Scotch Tall) and Erysimum scoparium (wall flower), were identified as Cd tolerant from hydroponic studies. The concentration of Cd in the aerial tissue in the species tested varied from 60 to 370 µg Cd g–1 DW. Cadmium tolerance was not correlated with aerial Cd concentration (µg g-1 DW), however, total aerial Cd (µg plant–1 DW) was proportional to total aerial biomass (mg plant–1 DW) (r=0.92), demonstrating the importance of biomass in the phytoextraction of Cd. Exposure to Cd resulted in decreased Fe and Zn concentrations and increased Ca, Na and Mg concentrations in aerial tissues.
Orthologues of HMA4, a gene encoding a metal transport protein capable of root-to-shoot transport of Cd, were detected in kohl rabi, pak choi, collards, wild mustard, senposai, kale, turnip and radish. Putative paralogues were observed in half of these species. The presence of identical sequences in Brassica species originating from different genomic backgrounds as well as more distantly related species of Brassicaceae, suggests an ancestral duplication event of HMA4 occurred before the evolution of these species. An expression analysis using reverse-transcriptase PCR of turnip, senposai, kohl rabi and kale detected HMA4 in the root tissue only, with no expression detected in kale. When plants were exposed to increasing Cd concentrations, HMA4 expression increased in both turnip and senposai, corresponding to medium to high levels of Cd accumulation respectively. Expression of this gene did not change in kohl rabi, which is consistent with low levels of Cd accumulation in this species. This finding supports the role of HMA4 in root to shoot…
Subjects/Keywords: phytoremediation; phytoextraction; cadmium; Brassicaceae; HMA4
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APA (6th Edition):
Popa, K. M. (2015). Phytoextraction of cadmium by species of the Brassicaceae. (Masters Thesis). University of Melbourne. Retrieved from http://hdl.handle.net/11343/59148
Chicago Manual of Style (16th Edition):
Popa, Kerryn Michelle. “Phytoextraction of cadmium by species of the Brassicaceae.” 2015. Masters Thesis, University of Melbourne. Accessed January 18, 2020.
http://hdl.handle.net/11343/59148.
MLA Handbook (7th Edition):
Popa, Kerryn Michelle. “Phytoextraction of cadmium by species of the Brassicaceae.” 2015. Web. 18 Jan 2020.
Vancouver:
Popa KM. Phytoextraction of cadmium by species of the Brassicaceae. [Internet] [Masters thesis]. University of Melbourne; 2015. [cited 2020 Jan 18].
Available from: http://hdl.handle.net/11343/59148.
Council of Science Editors:
Popa KM. Phytoextraction of cadmium by species of the Brassicaceae. [Masters Thesis]. University of Melbourne; 2015. Available from: http://hdl.handle.net/11343/59148
Iowa State University
16.
Albright, Vurtice.
Investigations into the capabilities of switchgrass to phytoremediate atrazine contamination in surface water runoff.
Degree: 2011, Iowa State University
URL: https://lib.dr.iastate.edu/etd/10436
► Atrazine is one of the most widely used herbicides in the agricultural industry today and, as a result, can commonly be found in many bodies…
(more)
▼ Atrazine is one of the most widely used herbicides in the agricultural industry today and, as a result, can commonly be found in many bodies of water in the Midwest. Atrazine and its metabolites have been shown to have many adverse effects on plants and animals within an ecosystem. Previous research has shown that phytoremediation of atrazine by switchgrass has potential to be a viable remediation strategy. The long-term goal of this research arc is to establish switchgrass buffer strips along the lower edge of fields and along terraces to help remove atrazine from surface water runoff. To further the knowledge of atrazine phytoremediation by switchgrass and to work towards the long-term goal, the current research project had two objectives: (1) determine degradation of atrazine using radiolabeled 14C-atrazine to allow for more in-depth analysis than previous studies and (2) determine the possible exudation of atrazine metabolites from the switchgrass after uptake and degradation. The research presented here shows that atrazine was taken up and degraded into the metabolites deethylatrazine, deisopropylatrazine, didealkylatrazine, and cyanuric acid. Contrary to published research, I did not find the metabolite hydroxyatrazine present in switchgrass tissues, suggesting that degradation of hydroxyatrazine does not occur in the switchgrass plant. Additionally, I showed that switchgrass did not exude metabolites of atrazine into soil following uptake and degradation.
Subjects/Keywords: Atrazine; Phytoremediation; Switchgrass; Entomology
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APA (6th Edition):
Albright, V. (2011). Investigations into the capabilities of switchgrass to phytoremediate atrazine contamination in surface water runoff. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/10436
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):
Albright, Vurtice. “Investigations into the capabilities of switchgrass to phytoremediate atrazine contamination in surface water runoff.” 2011. Thesis, Iowa State University. Accessed January 18, 2020.
https://lib.dr.iastate.edu/etd/10436.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Albright, Vurtice. “Investigations into the capabilities of switchgrass to phytoremediate atrazine contamination in surface water runoff.” 2011. Web. 18 Jan 2020.
Vancouver:
Albright V. Investigations into the capabilities of switchgrass to phytoremediate atrazine contamination in surface water runoff. [Internet] [Thesis]. Iowa State University; 2011. [cited 2020 Jan 18].
Available from: https://lib.dr.iastate.edu/etd/10436.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Albright V. Investigations into the capabilities of switchgrass to phytoremediate atrazine contamination in surface water runoff. [Thesis]. Iowa State University; 2011. Available from: https://lib.dr.iastate.edu/etd/10436
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Louisiana State University
17.
Marlborough, Sidney Joseph.
Arsenic Speciation and Phytoremediation Modeling for Environmental Management.
Degree: PhD, Environmental Sciences, 2016, Louisiana State University
URL: etd-04072016-144840
;
https://digitalcommons.lsu.edu/gradschool_dissertations/2062
► Arsenic has been used throughout recorded history but during the industrial revolution widespread use led to global environmental impact. The two forms that should be…
(more)
▼ Arsenic has been used throughout recorded history but during the industrial revolution widespread use led to global environmental impact. The two forms that should be considered in environment management are arsenate and arsenite. The calculations of environmental risk for arsenic exposure relies the toxicity of arsenite however, in well aeriated surface soils arsenate may be the predominate form. Ecological risk assessments based on arsenite studies will lead to restrictive remediation requirements that do not adequately reflect the level of risk. Arsenate resembles phosphate and as such has a greater affinity for phytoremediation. Phytoremediation is one of the most viable and cost effective cleanup techniques developed. Different mathematical approaches have been implemented to characterize phytoremediation systems to address concerns with performance. A system dynamic model is presented to describe solute transport in groundwater coupled to sorption by plant roots, translocation into plant stems, and evapotranspiration. The model was tested and assessed using published and peer-reviewed experimental data, to assess its capability to mimic phytoremediation processes. The model is consistent with previous research establishing the extraction process as a constringent factor for this cleanup technique. The model included modules that can estimate rainfall, seasonal temperature and growth. The modules allow for the independent verification of data before input into the model. The implementation of phytoremediation model can provide information about: pollutant-media-plant interaction, pollutant concentration and flow rate through the plant.
Subjects/Keywords: phytoremediation; speciation; arsenic; ecological risk; toxicology
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APA ·
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to Zotero / EndNote / Reference
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APA (6th Edition):
Marlborough, S. J. (2016). Arsenic Speciation and Phytoremediation Modeling for Environmental Management. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-04072016-144840 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2062
Chicago Manual of Style (16th Edition):
Marlborough, Sidney Joseph. “Arsenic Speciation and Phytoremediation Modeling for Environmental Management.” 2016. Doctoral Dissertation, Louisiana State University. Accessed January 18, 2020.
etd-04072016-144840 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2062.
MLA Handbook (7th Edition):
Marlborough, Sidney Joseph. “Arsenic Speciation and Phytoremediation Modeling for Environmental Management.” 2016. Web. 18 Jan 2020.
Vancouver:
Marlborough SJ. Arsenic Speciation and Phytoremediation Modeling for Environmental Management. [Internet] [Doctoral dissertation]. Louisiana State University; 2016. [cited 2020 Jan 18].
Available from: etd-04072016-144840 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2062.
Council of Science Editors:
Marlborough SJ. Arsenic Speciation and Phytoremediation Modeling for Environmental Management. [Doctoral Dissertation]. Louisiana State University; 2016. Available from: etd-04072016-144840 ; https://digitalcommons.lsu.edu/gradschool_dissertations/2062
18.
Rupinder Kaur.
Heavy Metal Interactions in Brassica juncea L during
Phytoremediation; No.
Degree: Sciences, 2014, Guru Nanak Dev University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/23688
newline No
Summary:481-490,
References:491-565
Advisors/Committee Members: Thukral, A.K..Subjects/Keywords: Brassica juncea; Phytoremediation
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APA (6th Edition):
Kaur, R. (2014). Heavy Metal Interactions in Brassica juncea L during
Phytoremediation; No. (Thesis). Guru Nanak Dev University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/23688
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):
Kaur, Rupinder. “Heavy Metal Interactions in Brassica juncea L during
Phytoremediation; No.” 2014. Thesis, Guru Nanak Dev University. Accessed January 18, 2020.
http://shodhganga.inflibnet.ac.in/handle/10603/23688.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kaur, Rupinder. “Heavy Metal Interactions in Brassica juncea L during
Phytoremediation; No.” 2014. Web. 18 Jan 2020.
Vancouver:
Kaur R. Heavy Metal Interactions in Brassica juncea L during
Phytoremediation; No. [Internet] [Thesis]. Guru Nanak Dev University; 2014. [cited 2020 Jan 18].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/23688.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kaur R. Heavy Metal Interactions in Brassica juncea L during
Phytoremediation; No. [Thesis]. Guru Nanak Dev University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/23688
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
19.
Vasav, A.
Phytoremediation of heavy metal pb contaminated soils in
and around tirupati by helianthus annuus l; -.
Degree: Biotechanology, 2013, Sri Padmavathi Womens University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/45928
None
Reference and Annexures given
Advisors/Committee Members: Usha, R.Subjects/Keywords: Contaminated; Phytoremediation; Soils
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APA ·
Chicago ·
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APA (6th Edition):
Vasav, A. (2013). Phytoremediation of heavy metal pb contaminated soils in
and around tirupati by helianthus annuus l; -. (Thesis). Sri Padmavathi Womens University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/45928
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):
Vasav, A. “Phytoremediation of heavy metal pb contaminated soils in
and around tirupati by helianthus annuus l; -.” 2013. Thesis, Sri Padmavathi Womens University. Accessed January 18, 2020.
http://shodhganga.inflibnet.ac.in/handle/10603/45928.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Vasav, A. “Phytoremediation of heavy metal pb contaminated soils in
and around tirupati by helianthus annuus l; -.” 2013. Web. 18 Jan 2020.
Vancouver:
Vasav A. Phytoremediation of heavy metal pb contaminated soils in
and around tirupati by helianthus annuus l; -. [Internet] [Thesis]. Sri Padmavathi Womens University; 2013. [cited 2020 Jan 18].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/45928.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Vasav A. Phytoremediation of heavy metal pb contaminated soils in
and around tirupati by helianthus annuus l; -. [Thesis]. Sri Padmavathi Womens University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/45928
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Texas A&M University
20.
Igwe, Alexandria N.
Phytoremediation of Hydrocarbon-Contaminated Soil Using Phenolic-Exuding Horticultural Plants.
Degree: 2015, Texas A&M University
URL: http://hdl.handle.net/1969.1/156145
► A greenhouse experiment was designed to test phenolic-exuding horticultural plant species for their phytoremediation potential in soils contaminated with polycyclic aromatic hydrocarbons (PAHs). Species included…
(more)
▼ A greenhouse experiment was designed to test phenolic-exuding horticultural plant species for their
phytoremediation potential in soils contaminated with polycyclic aromatic hydrocarbons (PAHs). Species included high-phenolic-exuding plants: Malus sp., Osmanthus fragrans, Sambucus nigra, Castanea pumila, Morus alba, and Myrica cerifera and low-polyphenol-exuding plants: Ziziphus jujube, Ribes aureum, and Cassia fistula. The species were planted in soil amended with benzo[a]pyrene, phenanthrene, and pyrene. After 7 months, nitrogen, phosphorus, and potassium amendments were added each month for three months. Plant roots were harvested; polyphenols were ethanol-extracted and quantified using the Folin-Ciocalteu method. Rhizosphere DNA was extracted, quantified, and the 16S rRNA gene and ITS region were sequenced for bacteria and fungi, respectively. In addition, qPCR was conducted that targeted the 16S rRNA and ITS region of bacteria and fungi, respectively. The highest and lowest concentrations of phenolics were from Sambucus nigra and Ribes aureum, respectively. There were no significant differences between 16S rRNA and ITS abundance among treatments. Sequencing showed a significant difference between the rhizosphere bacterial community compositions on a global level. Specifically, several Actinobacteria were over-represented in the low-phenolic-exuding plants, while high-phenolic-exuding plants were over-represented by several Proteobacteria. There were no significant differences between the fungal populations of treatments and all were dominated by Ascomycota. However, high-phenolic exuders had a higher abundance of Basidiomycota, than the low-phenolic exuders. Results showed that different microbial communities were selected for by high polyphenol-exuding plants and low polyphenol-exuding plants. This selection was more pronounced in bacteria than in fungi. The drastic ways in which bacteria respond to phenolic inputs highlight their importance in
phytoremediation.
Advisors/Committee Members: Schwab, Arthur P (advisor), Gentry, Terry J (advisor), Karthikeyan, Raghupathy (committee member).
Subjects/Keywords: phytoremediation; bioremediation; phenolic; polyphenols; microbial ecology; MOTHUR
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APA ·
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CSE |
Export
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Manager
APA (6th Edition):
Igwe, A. N. (2015). Phytoremediation of Hydrocarbon-Contaminated Soil Using Phenolic-Exuding Horticultural Plants. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/156145
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):
Igwe, Alexandria N. “Phytoremediation of Hydrocarbon-Contaminated Soil Using Phenolic-Exuding Horticultural Plants.” 2015. Thesis, Texas A&M University. Accessed January 18, 2020.
http://hdl.handle.net/1969.1/156145.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Igwe, Alexandria N. “Phytoremediation of Hydrocarbon-Contaminated Soil Using Phenolic-Exuding Horticultural Plants.” 2015. Web. 18 Jan 2020.
Vancouver:
Igwe AN. Phytoremediation of Hydrocarbon-Contaminated Soil Using Phenolic-Exuding Horticultural Plants. [Internet] [Thesis]. Texas A&M University; 2015. [cited 2020 Jan 18].
Available from: http://hdl.handle.net/1969.1/156145.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Igwe AN. Phytoremediation of Hydrocarbon-Contaminated Soil Using Phenolic-Exuding Horticultural Plants. [Thesis]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/156145
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Coventry University
21.
Sallami, K.
The phytoremediation of heavy metal contaminated roadside soils in Libya by Eucalyptus camaldeulensis.
Degree: PhD, 2015, Coventry University
URL: http://curve.coventry.ac.uk/open/items/163dce75-3b00-41d6-a1b8-5c9cbb896a39/1
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681425
► There is a public concern over the potential accumulation of heavy metals in soils. Numerous studies have already demonstrated that areas in close proximity to…
(more)
▼ There is a public concern over the potential accumulation of heavy metals in soils. Numerous studies have already demonstrated that areas in close proximity to vehicular traffic are marked noticeably by contamination of soil, air and water. Hence, such activities can affect humans and other living organisms. The aim of this study is to investigate the pollution of soils caused by vehicular traffic, on agricultural land in Azzawiyah, Liby with the view of assessing potential application of phytoremediation options for the remediation of contaminated soils and determine whether soil amendments would improve soil remediation. In an effort to improve the status of pollution of soils by vehicular traffic, a phytoremediation method of remediation of contaminated land has been used in this study, as it is relatively inexpensive and has the potential through the appropriate selection of plant species to be effective. This method is a soil clean up technology that uses the ability of metal accumulator plants to extract metal from contaminated soil with their roots and to concentrate these metals in above-ground plant parts. In this study, the investigation area was in Azzawiyah city where the soil samples and Doedonea viscose plant were collected from the road side. These soil samples were analysed using different experiments to determine physical and chemical properties, such as pH, OM and CEC. Heavy metals in soil and Doedonea viscose shoot and root were analysed using inductively coupled plasma atomic emission spectroscopy (ICP-AES). The findings of the study show that all soils samples collected along the highway road connecting Azzawiyah with the southern parts of Libya were found to be granular with a sandy texture. It is also found that the metal content in soil collected from the site, which is close to the roadside was relatively higher than that soil collected from the agricultural field in the same area. Furthermore, the level of Pb (840mg/kg-1) in roadside soils was higher than the natural levels of Pb in soils. In addition, Doedonea viscose plant was not a hyperaccumulor plant. Greenhouse experiments used three plants (E. camaldeulensis, Brassica Juncea and Medicago sativum) to uptake heavy metal, such as Cd, Zn and Pb from the soil samples. The greenhouse experiment results indicate that E. camaldeulensis was the best plant species for phytoremediation of Pb contaminated soils than the other two plants species (Brassica Juncea, Medicago sativum). The efficiency of the E. camaldeulensis was increased by adding amendments (e.g. compost, compost, EDTA, Hoagland solution and Alcaligenes eutrophus) to the plants pots in order to uptake the lead form soil samples. The results of the pots amendments experiments indicate that 15 mmol of EDTA and bacterial inoculums (Alcaligenes eutrophus) were the best amendments to extract lead from the soils. The study suggests that using the Alcaligenes eutrophus with the E. camaldeulensis are more suitable for phytoremediation in terms of accumulation and cost.
Subjects/Keywords: 628.5; Phytoremediation; Metals; Environmental aspects; Soil remediation
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Manager
APA (6th Edition):
Sallami, K. (2015). The phytoremediation of heavy metal contaminated roadside soils in Libya by Eucalyptus camaldeulensis. (Doctoral Dissertation). Coventry University. Retrieved from http://curve.coventry.ac.uk/open/items/163dce75-3b00-41d6-a1b8-5c9cbb896a39/1 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681425
Chicago Manual of Style (16th Edition):
Sallami, K. “The phytoremediation of heavy metal contaminated roadside soils in Libya by Eucalyptus camaldeulensis.” 2015. Doctoral Dissertation, Coventry University. Accessed January 18, 2020.
http://curve.coventry.ac.uk/open/items/163dce75-3b00-41d6-a1b8-5c9cbb896a39/1 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681425.
MLA Handbook (7th Edition):
Sallami, K. “The phytoremediation of heavy metal contaminated roadside soils in Libya by Eucalyptus camaldeulensis.” 2015. Web. 18 Jan 2020.
Vancouver:
Sallami K. The phytoremediation of heavy metal contaminated roadside soils in Libya by Eucalyptus camaldeulensis. [Internet] [Doctoral dissertation]. Coventry University; 2015. [cited 2020 Jan 18].
Available from: http://curve.coventry.ac.uk/open/items/163dce75-3b00-41d6-a1b8-5c9cbb896a39/1 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681425.
Council of Science Editors:
Sallami K. The phytoremediation of heavy metal contaminated roadside soils in Libya by Eucalyptus camaldeulensis. [Doctoral Dissertation]. Coventry University; 2015. Available from: http://curve.coventry.ac.uk/open/items/163dce75-3b00-41d6-a1b8-5c9cbb896a39/1 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681425
Punjabi University
22.
Dhir, Kirandeep Kaur.
Assessment of Morphogenetic diversity and
phytoremediation potentials of plants growing in arsenic rich soils
of Punjab.
Degree: 2011, Punjabi University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/2331
► Advancement in the agricultural production has given rise to land pollution. Continuous imbalanced use of fertilizes and indiscriminate use of herbicides, insecticides, etc. on the…
(more)
▼ Advancement in the agricultural production has
given rise to land pollution. Continuous imbalanced use of
fertilizes and indiscriminate use of herbicides, insecticides, etc.
on the crops along with organic domestic and industrial wastes has
caused serious environmental pollution. The cotton belt of Punjab
has seen tremendous increase in the incidence of dreaded diseases,
cancer during the last decade virtually making it a cancer region
of Punjab. The block Talwandi Sabo, District Bathinda (Punjab) is
falls in the arsenic belt of Punjab. The genotoxicity of soil
samples was studied by two different test systems: Allium
anaphase-telophase chromosome aberration assay (Allium assay) and
Yeast assay. The data on Allium anaphase-telophase aberration assay
and yeast assay revealed the genotoxic nature of soil samples
collected from three villages (Jajjal, Giana and Malkana). The
observations showed that the incidence of aberrations in the RTCs
as well as convertants in yeast increased with the increase in the
concentrations of the soil extracts in a dose dependent manner.
Morphologically and cytologically the plants from the study area
were found to be similar to the plants of the control site. The
plants of Patiala populations of these species had more pollen
fertility than that of the plants from polluted area. Based on the
RAPD analysis of four populations of each of the species i.e.,
Achyranthes aspera, Ageratum conyzoides, Amaranthus virdis, Digera
muricata, Parthenium hysterophorus and Tribulus terrestris formed
two major cluster groups. The populations of Trianthema
portulacastrum formed three cluster groups. The present study has
clearly revealed that the denizens of the polluted area have the
potential to tolerate high concentrations. The tolerance index (TI)
for roots was observed to be maximum in Parthenium hysterophorus.
In the present study TF, BF and PC was observed to be greater than
one in the case of Achyranthes aspera.
Abstract, Summary, References and Plates
Includes
Advisors/Committee Members: Saggoo, M I S.
Subjects/Keywords: Morphogenetic diversity; Punjab; Phytoremediation;
Arsenic Toxicity; Botany
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APA ·
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Manager
APA (6th Edition):
Dhir, K. K. (2011). Assessment of Morphogenetic diversity and
phytoremediation potentials of plants growing in arsenic rich soils
of Punjab. (Thesis). Punjabi University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/2331
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):
Dhir, Kirandeep Kaur. “Assessment of Morphogenetic diversity and
phytoremediation potentials of plants growing in arsenic rich soils
of Punjab.” 2011. Thesis, Punjabi University. Accessed January 18, 2020.
http://shodhganga.inflibnet.ac.in/handle/10603/2331.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Dhir, Kirandeep Kaur. “Assessment of Morphogenetic diversity and
phytoremediation potentials of plants growing in arsenic rich soils
of Punjab.” 2011. Web. 18 Jan 2020.
Vancouver:
Dhir KK. Assessment of Morphogenetic diversity and
phytoremediation potentials of plants growing in arsenic rich soils
of Punjab. [Internet] [Thesis]. Punjabi University; 2011. [cited 2020 Jan 18].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/2331.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Dhir KK. Assessment of Morphogenetic diversity and
phytoremediation potentials of plants growing in arsenic rich soils
of Punjab. [Thesis]. Punjabi University; 2011. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/2331
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
23.
Deepa, S.
Studies on the phytoremediation of high saline
lands; -.
Degree: Science and Humanities, 2013, Anna University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/22122
► Leather processing industry is known to be associated with the newlinegeneration of liquid waste with high Total Dissolved Solids TDS in newlineparticular salinity Consequently the…
(more)
▼ Leather processing industry is known to be
associated with the newlinegeneration of liquid waste with high
Total Dissolved Solids TDS in newlineparticular salinity
Consequently the disposal of the tannery wastewater with
newlinehigh salinity has become a major concern for the tanning
industry Salicornia newlinebrachiata is an annual halophyte
belonging to the Chenopodiaceae family and newlineis distributed
throughout the world It is a green jointed vascular flowering
newlineand leafless halophytic plant that carries articulated
succulent stems newlineThe main objective of this study is to
remediate the salinity from newlinetannery wastewater contaminated
lands by using S brachiata It was grown in newlinepots fed with
varying concentrations of sodium chloride NaCl viz 0 100 newline200
300 400 500 and 600 mM under laboratory conditions for a period of
newline90 days The effect of salt stress on morphological and
physiological newlinecharacteristic changes of S brachiata in pot
study was observed newlineAt every 30 days interval the S brachaita
plant samples were newlinecollected and measured the shoot root
length and fresh and dry weight of newlinesamplesThe optimal growth
of S brachiata plants were observed at 500 mM newlineof NaCl The
experimental plants showed a decrease in chlorophyll
newlinecarbohydrate lipid contents with an increase in
concentration of NaCl newlineHowever accumulation of sodium and
chloride protein and proline were newlineincreased by an increase
in concentration of NaCl with particular reference to
newlinesalinity due to osmotic stress The polypeptide profiling of
S brachiata under newlinethe influence of salinity has been
analyzed The effect of salinity stress on newlinepolyphenol content
and changes in antioxidant enzyme activities were newlineanalyzed
Polyphenol content was increased at 600 mM on 90 th day of NaCl
newlinetreated S brachiata The antioxidant enzymes such as
Polyphenol oxidase newlinePPO Catalase CAT and Superoxide Dismutase
SOD were analyzed newlineThe gene sequence of S brachiata was
identified using ITS rDNA newlinemarker S brachiata plants were
treated with soaking wastewater resulted in newlinedrastic
reduction of growth in terms of fresh and dry weight newline
newline
-
Advisors/Committee Members: Chandrasekaran, B.
Subjects/Keywords: Chenopodiaceae; Phytoremediation; Salicornia brachiata; Saline Lands
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APA (6th Edition):
Deepa, S. (2013). Studies on the phytoremediation of high saline
lands; -. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/22122
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):
Deepa, S. “Studies on the phytoremediation of high saline
lands; -.” 2013. Thesis, Anna University. Accessed January 18, 2020.
http://shodhganga.inflibnet.ac.in/handle/10603/22122.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Deepa, S. “Studies on the phytoremediation of high saline
lands; -.” 2013. Web. 18 Jan 2020.
Vancouver:
Deepa S. Studies on the phytoremediation of high saline
lands; -. [Internet] [Thesis]. Anna University; 2013. [cited 2020 Jan 18].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/22122.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Deepa S. Studies on the phytoremediation of high saline
lands; -. [Thesis]. Anna University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/22122
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
North Carolina State University
24.
Gregory, Samuel Thorne III.
DIfferences in Sediment Organic Matter Composition and PAH Weathering Between Non-Vegetated and Recently Vegetated Fuel-Oiled Sediments.
Degree: MS, Toxicology, 2007, North Carolina State University
URL: http://www.lib.ncsu.edu/resolver/1840.16/2099
► Previous results have shown a strong correlation between vegetation and dissipation of polycyclic aromatic hydrocarbon (PAH) contamination over long time frames. Evidence of phytoremediation over…
(more)
▼ Previous results have shown a strong correlation between vegetation and dissipation of polycyclic aromatic hydrocarbon (PAH) contamination over long time frames. Evidence of
phytoremediation over shorter time frames is difficult to detect, particularly in sites where overall PAH concentrations have not begun to significantly decrease. This study assessed the impact of vegetation on a highly contaminated sediment over a short time frame in order to track the effects of plant derived organic carbon (PdOC) in a variety of sediment compartments. The Indiana Harbor Canal is an industrialized area with historic petroleum contamination of near-shore sediments. In 2002, near-shore sediments were planted with hybrid poplar and willow trees as part of a
phytoremediation treatability study. Site disturbance allowed for colonization by cattails and Phragmites. In 2004, non-vegetated and vegetated oiled-shore sediments were collected and analyzed for 42 polycyclic aromatic hydrocarbons (PAHs), total organic carbon, and percent modern carbon (14C radiocarbon). Sediments were collected from several locations, field-composited, homogenized, sieved, and chemically fractionated. There is a significant input of modern carbon in both labile and recalcitrant fractions of vegetated sediments that is absent in the non-vegetated control. Phragmites sediments contained more modern carbon (plant carbon) and more weathered PAH ratios than willow, cattail, and non-vegetated sediments. Organic carbon-normalized PAH concentrations were greater in Phragmites humin than other sediments. Humin fractions of willow trees were more weathered than non-vegetated humin, but modern carbon values were not always different. Cattail humin contained more modern carbon than non-vegetated humin, but only de-ashed humin was more weathered than non-vegetated de-ashed humin. Results show that sediment composition and PAH weathering indices are not indicative of reduced PAH concentrations. Instead, PAH weathering appears related to increased modern carbon (plant carbon) content. Substantial increases in modern carbon content were observed after two years of plant growth. These results suggest that PdOC is diffusing into a variety of sediment compartments where it may be enhancing carbon cycling and beginning to mitigate PAH concentrations.
Advisors/Committee Members: Elizabeth Nichols, Committee Co-Chair (advisor), Damian Shea, Committee Co-Chair (advisor), Chris Hofelt, Committee Member (advisor).
Subjects/Keywords: Phytoremediation; Weathering; PAH
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APA (6th Edition):
Gregory, S. T. I. (2007). DIfferences in Sediment Organic Matter Composition and PAH Weathering Between Non-Vegetated and Recently Vegetated Fuel-Oiled Sediments. (Thesis). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/2099
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):
Gregory, Samuel Thorne III. “DIfferences in Sediment Organic Matter Composition and PAH Weathering Between Non-Vegetated and Recently Vegetated Fuel-Oiled Sediments.” 2007. Thesis, North Carolina State University. Accessed January 18, 2020.
http://www.lib.ncsu.edu/resolver/1840.16/2099.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gregory, Samuel Thorne III. “DIfferences in Sediment Organic Matter Composition and PAH Weathering Between Non-Vegetated and Recently Vegetated Fuel-Oiled Sediments.” 2007. Web. 18 Jan 2020.
Vancouver:
Gregory STI. DIfferences in Sediment Organic Matter Composition and PAH Weathering Between Non-Vegetated and Recently Vegetated Fuel-Oiled Sediments. [Internet] [Thesis]. North Carolina State University; 2007. [cited 2020 Jan 18].
Available from: http://www.lib.ncsu.edu/resolver/1840.16/2099.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gregory STI. DIfferences in Sediment Organic Matter Composition and PAH Weathering Between Non-Vegetated and Recently Vegetated Fuel-Oiled Sediments. [Thesis]. North Carolina State University; 2007. Available from: http://www.lib.ncsu.edu/resolver/1840.16/2099
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
25.
Trensey, Jessica.
Screening of grasses and legumes for phytoremediation of nitroglycerin in soil.
Degree: Thesis (M.S.), 2013, Ball State University
URL: http://cardinalscholar.bsu.edu/handle/123456789/197182
► Six plant species were screened to determine potential suitability for phytoremediation of nitroglycerin (NG), a component in smokeless powders (SP). Seeds of Zea mays (corn),…
(more)
▼ Six plant species were screened to determine potential suitability for
phytoremediation of nitroglycerin (NG), a component in smokeless powders (SP). Seeds of Zea mays (corn), Triticum aestivum (wheat), Medicago sativa (alfalfa), Poa pratensis (Kentucky bluegrass), Trifolium pratense (red clover), and Phaseolus vulgaris (common bean) were sown into greenhouse mesocosms containing commercially prepared soil spiked with 0, 1, and 5% SP (w/w). Soil samples were collected 7, 60, and 90 days after seeding, extracted with ethanol, and analyzed for NG using a gas chromatograph with an electron capture detector. Plant growth observations were recorded using a simple scoring metric at 7, 14, 30, and 60 days after seeding. Soil nitrate and ammonium, potential by-products of NG decomposition, were quantified 90 days after seeding. NG disappearance in plant treatments was markedly, although not significantly (p > 0.05), higher than control at 1% SP, with legumes being the most successful treatment. Nitrate concentrations were significantly (p < 0.05) higher in legume than grass treatments. Soil ammonium was not correlated to any plant or SP treatment. Plant uptake of NG was minimal, suggesting a soil microbial effect in NG disappearance. More extensive screening studies are needed to determine which plants are the most successful remediators of NG.
Advisors/Committee Members: Pichtel, John, 1957- (advisor).
Subjects/Keywords: Grasses; Phytoremediation; Nitroglycerin – Environmental aspects; Nitroglycerin – Biodegradation
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APA (6th Edition):
Trensey, J. (2013). Screening of grasses and legumes for phytoremediation of nitroglycerin in soil. (Masters Thesis). Ball State University. Retrieved from http://cardinalscholar.bsu.edu/handle/123456789/197182
Chicago Manual of Style (16th Edition):
Trensey, Jessica. “Screening of grasses and legumes for phytoremediation of nitroglycerin in soil.” 2013. Masters Thesis, Ball State University. Accessed January 18, 2020.
http://cardinalscholar.bsu.edu/handle/123456789/197182.
MLA Handbook (7th Edition):
Trensey, Jessica. “Screening of grasses and legumes for phytoremediation of nitroglycerin in soil.” 2013. Web. 18 Jan 2020.
Vancouver:
Trensey J. Screening of grasses and legumes for phytoremediation of nitroglycerin in soil. [Internet] [Masters thesis]. Ball State University; 2013. [cited 2020 Jan 18].
Available from: http://cardinalscholar.bsu.edu/handle/123456789/197182.
Council of Science Editors:
Trensey J. Screening of grasses and legumes for phytoremediation of nitroglycerin in soil. [Masters Thesis]. Ball State University; 2013. Available from: http://cardinalscholar.bsu.edu/handle/123456789/197182
RMIT University
26.
Vuong, H.
The use of the integrated soil microcosms to assess accumulation of caesium (Cs) and lead (Pb) from contaminated soils by earthworms (Eisenia andrei) and the sunflower (Helianthus annuus).
Degree: 2013, RMIT University
URL: http://researchbank.rmit.edu.au/view/rmit:160596
► Heavy metal and radionuclide contamination in soils is a serious problem and increasing. Lead is one of the most consistent pollutants in soil; while cesium…
(more)
▼ Heavy metal and radionuclide contamination in soils is a serious problem and increasing. Lead is one of the most consistent pollutants in soil; while cesium is commonly released in radioactive wastes and has contaminated large land areas. Phytoremediation can be used to decontaminate soils by removing heavy metals (Cu, Ni, Pb, and Zn) and radionuclides (90Sr, 137Cs, 234U). In this study we used the earthworm Eisenia andrei and sunflower dwarf sensation (Helianthus annuus) as tools to assess the accumulation of stable Cs and Pb individually and in combination. The efficacy of this remediation was evaluated using integrated soil microcosms with soil contaminated with Cs alone at 25 and 250 ppm; Pb alone (1500 ppm) and Pb (1500 ppm) together with Cs (250 ppm) in the laboratory. Results revealed that the sunflower bioaccumulated Cs and Pb and accumulation was more in roots than in the shoots. The Cs bioaccumulated in plants and earthworms increased with higher Cs in soils. The presence of earthworms did not increase Cs and Pb accumulation or the transfer of the trace metals from roots to shoots. The presence of Cs+Pb as a mixture reduced the accumulation, transfer and the translocation of Cs and Pb. Earthworms had a high tolerance for Cs and Pb and accumulated Cs (250 ppm) and Pb (1500 ppm). It was also evident that Pb in earthworms in the top layer of the soil core was higher than in the lower core. The presence of Pb with Cs as a mixture reduced accumulation of Pb and Cs in earthworms. Lead removal from soil was only 0.9 to 5.5% while Cs was removed to a greater extent, i.e.27 to 49%. Lead and cesium were also detected in leachates at very low levels. The study also demonstrated that Pb in soil was less mobile and less bioavailable than Cs.
Subjects/Keywords: Fields of Research; soil; lead; cesium; phytoremediation
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APA (6th Edition):
Vuong, H. (2013). The use of the integrated soil microcosms to assess accumulation of caesium (Cs) and lead (Pb) from contaminated soils by earthworms (Eisenia andrei) and the sunflower (Helianthus annuus). (Thesis). RMIT University. Retrieved from http://researchbank.rmit.edu.au/view/rmit:160596
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):
Vuong, H. “The use of the integrated soil microcosms to assess accumulation of caesium (Cs) and lead (Pb) from contaminated soils by earthworms (Eisenia andrei) and the sunflower (Helianthus annuus).” 2013. Thesis, RMIT University. Accessed January 18, 2020.
http://researchbank.rmit.edu.au/view/rmit:160596.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Vuong, H. “The use of the integrated soil microcosms to assess accumulation of caesium (Cs) and lead (Pb) from contaminated soils by earthworms (Eisenia andrei) and the sunflower (Helianthus annuus).” 2013. Web. 18 Jan 2020.
Vancouver:
Vuong H. The use of the integrated soil microcosms to assess accumulation of caesium (Cs) and lead (Pb) from contaminated soils by earthworms (Eisenia andrei) and the sunflower (Helianthus annuus). [Internet] [Thesis]. RMIT University; 2013. [cited 2020 Jan 18].
Available from: http://researchbank.rmit.edu.au/view/rmit:160596.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Vuong H. The use of the integrated soil microcosms to assess accumulation of caesium (Cs) and lead (Pb) from contaminated soils by earthworms (Eisenia andrei) and the sunflower (Helianthus annuus). [Thesis]. RMIT University; 2013. Available from: http://researchbank.rmit.edu.au/view/rmit:160596
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
NSYSU
27.
Wang, Jui-Yann.
The study of phytoremediation for soils contaminated by pyrene.
Degree: PhD, Marine Environment and Engineering, 2008, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0124108-134951
► The purpose of this study was to treat soils contaminated by pyrene through phytoremediation. The plant species selected were Phragmites communis Trin., Typha orientalis Presl,…
(more)
▼ The purpose of this study was to treat soils contaminated by pyrene through
phytoremediation. The plant species selected were Phragmites communis Trin., Typha orientalis Presl, Vetiveria zizanioides, Rohdea japonica (Thunb.) Roth et Kunth, Cyperus malaccensis. Lam. subsp. monophyllus (Vahl) T. Koyama, Bolboschoenus planiculmis (F. Schmidt) T. Koyama and Bidens pilosa respectively. The degradation efficiencies of pyrene in soils and concentration of pyrene in the plant tissues were evaluated in this study. In addition, the change of microbial biota in soils was investigated in the tests of this study.
The experimental results indicated that after twenty-two weeks, soils planted with V. zizanioides, R. japonica and T. orientalis have better pyrene degradation efficiencies. Especially, after fourteen weeks the pyrene degradation efficiencies were 86%, 84% and 77% respectively, which showed that the efficiencies 10% to 20% higher than those unplanted control experiments, which was 66%. In addition, the pyrene degradation efficiencies in summer were found to be higher than those in winter. The degradation efficiencies of pyrene in sterilized soil with and without T. orientalis were found equal to 59% and 55%, respectively. These values were found lower than those in the experiment without sterilization, in which the pyrene degradation efficiencies with and without T. orientalis were 77% and 66%, respectively, after the fourteen weeks experiment. Hence the rhizospheric microorganisms had a significant effect on the degradation of pyrene in soils.
The pyrene degradation efficiencies were improved with application of fertilizer (HYPONeX No.2, HYPONeX Co., USA). After fourteen weeks, it was found that the experiment with fertilizer and with or without T. orientalis planted were 7% higher, which were 84% and 73% respectively, compared to 77% and 66% with no application of fertilizer.
Proper surfactants have positive effect on
phytoremediation. In this study, we found that addition of the surfactant Triton X-100 or combined surfactants (Triton X-100, Tween 20 and sodium dodecylbenzene sulfonate) both presented better pyrene degradation efficiencies than the system without adding surfactant. After ten weeks, soils planted with V. zizanioides and added with surfactants showed the pyrene degradation efficiencies equal to 85% and 87% (combined) respectively, which showed that 4% and 6% higher rate than the system without adding surfactants (81% ). After twenty two weeks, soils planted with V. zizanioides and added with surfactants showed that the pyrene degradation efficiencies were 96% and 96% (combined) respectively. They were all higher than the system without adding surfactants (94%). Soils planted with R. japonica also showed the same results.
In this study, it was also found that the degradation efficiencies were higher at the surface layer of the soil than subsurface layer due to better oxygen content there. Hence the activities of microorganisms in the surface layer were higher than those in the subsurface layer of soils.…
Advisors/Committee Members: Jimmy C.M. Kao (chair), Tse-Miu Lee (chair), Dar-Yuan Lee (chair), Yue-Wen Wang (chair), Lei Yang (committee member), Jong-Kang Liu (chair).
Subjects/Keywords: bioremediation; pyrene; root zone effect; phytoremediation
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APA (6th Edition):
Wang, J. (2008). The study of phytoremediation for soils contaminated by pyrene. (Doctoral Dissertation). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0124108-134951
Chicago Manual of Style (16th Edition):
Wang, Jui-Yann. “The study of phytoremediation for soils contaminated by pyrene.” 2008. Doctoral Dissertation, NSYSU. Accessed January 18, 2020.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0124108-134951.
MLA Handbook (7th Edition):
Wang, Jui-Yann. “The study of phytoremediation for soils contaminated by pyrene.” 2008. Web. 18 Jan 2020.
Vancouver:
Wang J. The study of phytoremediation for soils contaminated by pyrene. [Internet] [Doctoral dissertation]. NSYSU; 2008. [cited 2020 Jan 18].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0124108-134951.
Council of Science Editors:
Wang J. The study of phytoremediation for soils contaminated by pyrene. [Doctoral Dissertation]. NSYSU; 2008. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0124108-134951
Universiteit Utrecht
28.
Goris, K.
The potential of phytostabilization on environmental and human risk reduction in mine waste areas.
Degree: 2014, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/294972
► Worldwide, mining is a source of huge amounts of heavy metal contaminated waste. The most important environmental health risks associated with unmanaged mine waste are…
(more)
▼ Worldwide, mining is a source of huge amounts of heavy metal contaminated waste. The most important environmental health risks associated with unmanaged mine waste are caused by the formation of acid mine drainage and the spread of metals into the environment through aeolian dispersion, surface runoff and leaching. Heavy metal pollution and acid mine drainage lead to a decrease of biodiversity, and an increase in death and disease of vegetation, wildlife and humans for many miles around the polluted area.
A possible remediation technique is phytostabilization. A long-term vegetation cover would decrease the spread of dust and heavy metals through wind and water erosion, and decrease the leaching of heavy metals and acid mine drainage into the groundwater. Vegetation, possibly aided by microbiota or soil amendments, promotes soil development, nutrient recycling and the development of microbial communities. It is a non-invasive, cost efficient method to reclaim mine waste areas and reduce risks of heavy metal pollution and acid mine drainage.
Revegetation has been successful in nutrient-poor heavy metal polluted mine waste areas both in temperate and arid climates. Mycorrhiza and plant growth-promoting bacteria have been found, in some studies, to aid plants in overcoming metal toxicity and decrease leaching and uptake of heavy metals into the plant. However, not all studies have found this effect. Mycorrhiza and growth-promoting bacteria can also decrease the amount of soil amendments needed, lowering costs.
Very few studies on the long-term effects of revegetation on risk reduction have been performed. For instance, the decrease of aeolian dispersion and surface runoff due to revegetation has not been studied, and only few have studied the effects on leaching. These studies, possibly due to large differences in experimental design, show conflicting results. It is unclear what influence revegetation has on heavy metal leaching. Metal mobility is influenced by many conflicting processes driven by the plant, bacteria, mycorrhiza and soil status. Most of these processes only influence the rhizosphere and the top soil layer and are not expected to influence metal mobility on a larger scale. Acidification due to vegetation does not seem to be a problem, especially when the right plants are selected. The few studies done show only a very slight decrease in pH levels over time, or an increase under the influence of soil amendments and vegetation. Many plant species do not accumulate heavy metals into their above-ground biomass; these would not pose a risk to foraging animals. In the selection of plants, and after plant establishment, attention should be paid to metal content in leaves and shoots. These should not exceed animal toxicity levels to prevent entry into the food-chain. In order to obtain the best results, a small field study can be performed to select plants with a low metal accumulation and a high tolerance for the local tailing conditions. This ensures higher plant survival rates after planting. After plant…
Advisors/Committee Members: Blaauboer, B.J., Rijk, I..
Subjects/Keywords: phytostabilization; mine tailings; phytoremediation; heavy metals; revegetation
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APA (6th Edition):
Goris, K. (2014). The potential of phytostabilization on environmental and human risk reduction in mine waste areas. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/294972
Chicago Manual of Style (16th Edition):
Goris, K. “The potential of phytostabilization on environmental and human risk reduction in mine waste areas.” 2014. Masters Thesis, Universiteit Utrecht. Accessed January 18, 2020.
http://dspace.library.uu.nl:8080/handle/1874/294972.
MLA Handbook (7th Edition):
Goris, K. “The potential of phytostabilization on environmental and human risk reduction in mine waste areas.” 2014. Web. 18 Jan 2020.
Vancouver:
Goris K. The potential of phytostabilization on environmental and human risk reduction in mine waste areas. [Internet] [Masters thesis]. Universiteit Utrecht; 2014. [cited 2020 Jan 18].
Available from: http://dspace.library.uu.nl:8080/handle/1874/294972.
Council of Science Editors:
Goris K. The potential of phytostabilization on environmental and human risk reduction in mine waste areas. [Masters Thesis]. Universiteit Utrecht; 2014. Available from: http://dspace.library.uu.nl:8080/handle/1874/294972
Humboldt State University
29.
Succuro, Jerry S.
The effectiveness of using Typha latifolia (broadleaf cattail) for phytoremediation of increased levels of lead-contamination in soil.
Degree: MA, Biology: Botany, 2010, Humboldt State University
URL: http://hdl.handle.net/2148/587
► In this study, two ways of accumulating Pb were investigated: natural accumulation and chemically enhanced accumulation with the chelating agent ethylenediaminetetraacetic acid (EDTA). Young cattails…
(more)
▼ In this study, two ways of accumulating Pb were investigated: natural accumulation and chemically enhanced accumulation with the chelating agent ethylenediaminetetraacetic acid (EDTA). Young cattails (Typha latifolia) were removed from the Arcata Community Pond in Northern California and transplanted into two-quart mason jars containing four different levels of Pb contamination: 0, 2000, 4000, and 6000 mg Pb/kg soil. Three cattails per jar were grown for a three-week period with half of the plants receiving 10 mmol EDTA on the 15th day of the experiment and allowed to continue growth for the remaining 6 days of treatment. Cattails were harvested, separated into shoots, rhizomes and roots, and then analyzed for Pb concentration in these tissues using Atomic Absorption Spectrophotometry (AAS). For the natural accumulation of Pb, no significant differences among the 2000, 4000, and 6000 mg Pb/kg groups for shoots (p = 0.1063), rhizomes (p = 0.1096) or roots (p = 0.2526) were detected. When EDTA was added to the soil, there was a significant difference among the various levels of soil contamination (p = 0.0002). In this particular case, the largest accumulation of Pb occurred at the 4000 mg Pb/kg soil contamination level with shoots accumulating a combined average of 4744.03 mg Pb/kg. These results show that three cattails can remove Pb from the environment in larger quantities if a chelating agent is
present in a short period of time. In addition, it appears that the 6000 mg Pb/kg soil contamination is a threshold of toxicity as all aspects of the experiment showed a decrease in the health, natural accumulation of Pb, and the accumulation of Pb with the addition of EDTA. Typha latifolia has a wide tolerance to many different environments and produces a large amount of biomass, which make it a good candidate for use in
phytoremediation. Further research should consider increasing the quantity of cattails to optimize Pb removal from the soil.
Advisors/Committee Members: Lu, Casey R..
Subjects/Keywords: Phytoremediation; Lead; Cattails; Typha latifolia; Phytostabilization; Phytoextraction
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APA (6th Edition):
Succuro, J. S. (2010). The effectiveness of using Typha latifolia (broadleaf cattail) for phytoremediation of increased levels of lead-contamination in soil. (Masters Thesis). Humboldt State University. Retrieved from http://hdl.handle.net/2148/587
Chicago Manual of Style (16th Edition):
Succuro, Jerry S. “The effectiveness of using Typha latifolia (broadleaf cattail) for phytoremediation of increased levels of lead-contamination in soil.” 2010. Masters Thesis, Humboldt State University. Accessed January 18, 2020.
http://hdl.handle.net/2148/587.
MLA Handbook (7th Edition):
Succuro, Jerry S. “The effectiveness of using Typha latifolia (broadleaf cattail) for phytoremediation of increased levels of lead-contamination in soil.” 2010. Web. 18 Jan 2020.
Vancouver:
Succuro JS. The effectiveness of using Typha latifolia (broadleaf cattail) for phytoremediation of increased levels of lead-contamination in soil. [Internet] [Masters thesis]. Humboldt State University; 2010. [cited 2020 Jan 18].
Available from: http://hdl.handle.net/2148/587.
Council of Science Editors:
Succuro JS. The effectiveness of using Typha latifolia (broadleaf cattail) for phytoremediation of increased levels of lead-contamination in soil. [Masters Thesis]. Humboldt State University; 2010. Available from: http://hdl.handle.net/2148/587
Miami University
30.
Stuck, Robert Jason.
THE INFLUENCE OF PHYTOREMEDIATION ON BACTERIAL
DIVERSITY.
Degree: MS, Botany, 2005, Miami University
URL: http://rave.ohiolink.edu/etdc/view?acc_num=miami1133398530
► Phytoremediation is the use of plants and their associated microorganisms to remove pollutants from the environment or to render them harmless. The increased use of…
(more)
▼ Phytoremediation is the use of plants and their
associated microorganisms to remove pollutants from the environment
or to render them harmless. The increased use of
phytoremediation
is being driven by the high cost of alternative methods, as well as
the desire to use an environmentally friendly, sustainable process.
This thesis examined two different aspects of
phytoremediation;
determinants of bacterial diversity in contaminated soils and
additions of soil amendments in an effort to increase root growth.
The bacterial study showed species richness declined principally
with soil moisture. These results are consistent with the spatial
heterogeneity hypothesis, that the negative richness-moisture
relation is the result of competitive exclusion due to increased
bacterial and resource mobility in soils with high moisture
content. The root study was unable to confirm the hypothesis that
the presence of iron in the soil leads to a proliferation in root
development.
Advisors/Committee Members: Stevens, Martin (Advisor).
Subjects/Keywords: diversity; phytoremediation; ecology
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APA (6th Edition):
Stuck, R. J. (2005). THE INFLUENCE OF PHYTOREMEDIATION ON BACTERIAL
DIVERSITY. (Masters Thesis). Miami University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=miami1133398530
Chicago Manual of Style (16th Edition):
Stuck, Robert Jason. “THE INFLUENCE OF PHYTOREMEDIATION ON BACTERIAL
DIVERSITY.” 2005. Masters Thesis, Miami University. Accessed January 18, 2020.
http://rave.ohiolink.edu/etdc/view?acc_num=miami1133398530.
MLA Handbook (7th Edition):
Stuck, Robert Jason. “THE INFLUENCE OF PHYTOREMEDIATION ON BACTERIAL
DIVERSITY.” 2005. Web. 18 Jan 2020.
Vancouver:
Stuck RJ. THE INFLUENCE OF PHYTOREMEDIATION ON BACTERIAL
DIVERSITY. [Internet] [Masters thesis]. Miami University; 2005. [cited 2020 Jan 18].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=miami1133398530.
Council of Science Editors:
Stuck RJ. THE INFLUENCE OF PHYTOREMEDIATION ON BACTERIAL
DIVERSITY. [Masters Thesis]. Miami University; 2005. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=miami1133398530
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Open Access Theses and Dissertations
