Evaluation of the long-term pollution removal performance of established bioretention cells

Terry Lucke; Peter Nichols

doi:10.21660/2016.24.1193

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Evaluation of the long-term pollution removal performance of established bioretention cells

Journal article

Open access

Peer reviewed

Evaluation of the long-term pollution removal performance of established bioretention cells

Terry Lucke and Peter Nichols

International Journal of GEOMATE, Vol.11(24), pp.2363-2369

International Conference on Science, Engineering and Environment (SEE), 1st (Mie, Japan, 19-Nov-2015–21-Nov-2015)

2016

DOI: https://doi.org/10.21660/2016.24.1193

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Abstract

Civil Engineering

Environmental Engineering

stormwater pollution

bioretention systems

heavy metals

filter media

Over the last two decades bioretention (biofiltration) systems have been commonly constructed in urban areas to manage stormwater runoff by moderating peak flows and reducing downstream pollution loads. Bioretention systems are generally soil-plant based systems which typically include a filter medium above a drainage layer. They are often either lined with a geofabric to support infiltration, or with an impermeable membrane to prevent infiltration and/or to allow stormwater harvesting and reuse. Bioretention systems are known to treat a range of stormwater pollutants through physical, chemical and biological processes such as mechanical filtering, sedimentation, adsorption, and plant and microbial uptake. However, the long-term pollution removal performance, particularly of heavy metals, remains largely unknown. It is generally accepted that the filter media used in bioretention systems has a finite life span, after which time it should be replaced. However, there is only very limited information available on when this should occur, or how to assess this. It is also recognised that contaminated filter media may require regulated disposal. This study presents results from a series of controlled field experiments conducted over two years which evaluated the pollution removal performance of a series of 10 year old bioretention systems located in an industrial state in Australia.

Details

Title: Evaluation of the long-term pollution removal performance of established bioretention cells
Authors: Terry Lucke (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Peter Nichols (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: International Journal of GEOMATE, Vol.11(24), pp.2363-2369
Conference details: International Conference on Science, Engineering and Environment (SEE), 1st (Mie, Japan, 19-Nov-2015–21-Nov-2015)
Publisher: GEOMATE International Society
Date published: 2016
DOI: 10.21660/2016.24.1193
ISSN: 2186-2982
Copyright note: Copyright © 2016, Int. J. of GEOMATE. All rights reserved, including the making of copies unless permission is obtained from the copyright proprietors. Reproduced here with permission of the copyright holder.
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99449893902621
Output Type: Journal article

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