The capture/retention investigation of a gross pollutant trap

Madhani, Jehangir T. & Brown, Richard J. (2010) The capture/retention investigation of a gross pollutant trap. In Mallinson, G.D. & Cater, J.E. (Eds.) 17th Australasian Fluid Mechanics Conference Proceedings, Australasian Fluid Mechanics Society, The University of Auckland, Auckland, pp. 1-4.

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A technique was developed to investigate the capture/retention characteristic of a gross pollutant trap (GPT) with fully and partially blocked internal screens. Custom modified spheres of variable density filled with liquid were released into the GPT inlet and monitored at the outlet. The outlet data shows that the capture/retention performances of a GPT with fully blocked screens deteriorate rapidly. During higher flow rates, screen blockages below 68% approach maximum efficiency. At lower flow rates, the high performance trend is reversed and the variation in behaviour of pollutants with different densities becomes more noticeable. Additional experiments with a second upstream inlet configured GPT showed an improved capture/retention performance. It was also noted that the bypass allows the incoming pollutants to escape when the GPT is blocked. This useful feature prevents upstream blockages between cleaning intervals.

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ID Code: 37942
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: Gross Pollutant Traps, GPT, Residence Time Distribution, RTD, Blockage
ISBN: 9780868691299
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CHEMICAL ENGINEERING (090400) > Water Treatment Processes (090410)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Computational Fluid Dynamics (091501)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2010 Australasian Fluid Mechanics Society
Deposited On: 13 Oct 2010 06:59
Last Modified: 29 Feb 2012 14:26

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