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Laboratory studies on granular filters and their relationship to geotextiles for stormwater pollutant reduction

Laboratory studies on granular filters and their relationship to geotextiles for stormwater pollutant reduction

Parneet, Paul and Tota-Maharaj, Kiran (2015) Laboratory studies on granular filters and their relationship to geotextiles for stormwater pollutant reduction. Water, 7 (4). pp. 1595-1609. ISSN 2073-4441 (doi:https://doi.org/10.3390/w7041595)

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Abstract

Applications of geotextiles within tertiary stormwater treatment systems and for stormwater infiltration can provide a substrate for biofilm formation, enabling biological treatment of contaminants. Geotextiles can serve as an efficient part of stormwater filtration within the urban water environment. The project assessed the applications of three experimental granular filters as a sustainable urban drainage system (SUDS) for the decomposition of organic pollutant loading present in stormwater. The three filter rigs were packed with alternating layers of filter media consisting of gravel, pea gravel, sand and either a single, double or no layer of geotextile membrane. A nonwoven geotextile was layered within the filter media. The hydraulic loading capacity for the three filters matched that commonly used with conventional sand filters systems. Water quality parameters were quantified by measuring suspended solids, chemical oxygen demand, dissolved oxygen, pH, nitrate-nitrogen, and phosphate concentrations. It was found that Filter Rig No. 3 (upper and lower geotextile membrane) and Filter Rig No. 2 (single geotextile membrane) had a significant statistical difference in treatment performance from Filter Rig No. 1 (no geotextile membrane).

Item Type: Article
Additional Information: [1] This article belongs to the Special Issue Water Quality Control and Management). [2] This is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. [3] Acknowledgments (funding): This project was financially supported by Brunel University’s Department of Civil Engineering and its Water Sustainability Research Centre.
Uncontrolled Keywords: adsorption, biofilm, geomembrane, sustainable urban drainage system (SUDS), stormwater harvesting
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Related URLs:
Last Modified: 14 Dec 2016 13:17
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/13329

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