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Queensland University of Technology

1. Madhani, Jehangir T. The hydrodynamic and capture/retention performance of a gross pollutant trap.

Degree: 2010, Queensland University of Technology

This research shows that gross pollutant traps (GPTs) continue to play an important role in preventing visible street waste—gross pollutants—from contaminating the environment. The demand for these GPTs calls for stringent quality control and this research provides a foundation to rigorously examine the devices. A novel and comprehensive testing approach to examine a dry sump GPT was developed. The GPT is designed with internal screens to capture gross pollutants—organic matter and anthropogenic litter. This device has not been previously investigated. Apart from the review of GPTs and gross pollutant data, the testing approach includes four additional aspects to this research, which are: field work and an historical overview of street waste/stormwater pollution, calibration of equipment, hydrodynamic studies and gross pollutant capture/retention investigations. This work is the first comprehensive investigation of its kind and provides valuable practical information for the current research and any future work pertaining to the operations of GPTs and management of street waste in the urban environment. Gross pollutant traps—including patented and registered designs developed by industry—have specific internal configurations and hydrodynamic separation characteristics which demand individual testing and performance assessments. Stormwater devices are usually evaluated by environmental protection agencies (EPAs), professional bodies and water research centres. In the USA, the American Society of Civil Engineers (ASCE) and the Environmental Water Resource Institute (EWRI) are examples of professional and research organisations actively involved in these evaluation/verification programs. These programs largely rely on field evaluations alone that are limited in scope, mainly for cost and logistical reasons. In Australia, evaluation/verification programs of new devices in the stormwater industry are not well established. The current limitations in the evaluation methodologies of GPTs have been addressed in this research by establishing a new testing approach. This approach uses a combination of physical and theoretical models to examine in detail the hydrodynamic and capture/retention characteristics of the GPT. The physical model consisted of a 50% scale model GPT rig with screen blockages varying from 0 to 100%. This rig was placed in a 20 m flume and various inlet and outflow operating conditions were modelled on observations made during the field monitoring of GPTs. Due to infrequent cleaning, the retaining screens inside the GPTs were often observed to be blocked with organic matter. Blocked screens can radically change the hydrodynamic and gross pollutant capture/retention characteristics of a GPT as shown from this research. This research involved the use of equipment, such as acoustic Doppler velocimeters (ADVs) and dye concentration (Komori) probes, which were deployed for the first time in a dry sump GPT. Hence, it was necessary to rigorously evaluate the capability and performance of these devices,…

Subjects/Keywords: Acoustic Doppler Velocimeter, ADV, anthropogenic litter, organic matter, computational fluid dynamics, CFD, D rain, dye, flow visualisations, fluent, gross pollutants, gross pollutant trap, GPT, Komori probe, litter, line integral convolution, LIC; residence time distribution, RTD, stormwater

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Madhani, J. T. (2010). The hydrodynamic and capture/retention performance of a gross pollutant trap. (Thesis). Queensland University of Technology. Retrieved from https://eprints.qut.edu.au/39332/

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):

Madhani, Jehangir T. “The hydrodynamic and capture/retention performance of a gross pollutant trap.” 2010. Thesis, Queensland University of Technology. Accessed November 22, 2017. https://eprints.qut.edu.au/39332/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Madhani, Jehangir T. “The hydrodynamic and capture/retention performance of a gross pollutant trap.” 2010. Web. 22 Nov 2017.

Vancouver:

Madhani JT. The hydrodynamic and capture/retention performance of a gross pollutant trap. [Internet] [Thesis]. Queensland University of Technology; 2010. [cited 2017 Nov 22]. Available from: https://eprints.qut.edu.au/39332/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Madhani JT. The hydrodynamic and capture/retention performance of a gross pollutant trap. [Thesis]. Queensland University of Technology; 2010. Available from: https://eprints.qut.edu.au/39332/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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