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Investigating the influence of geotextile layers as biofilm granular filters to treat stormwater

Investigating the influence of geotextile layers as biofilm granular filters to treat stormwater

Tota-Maharaj, Kiran and Paul, Parneet (2015) Investigating the influence of geotextile layers as biofilm granular filters to treat stormwater. Urban Water Journal, 12 (7). pp. 559-569. ISSN 1573-062X (Print), 1744-9006 (Online) (doi:https://doi.org/10.1080/1573062X.2014.916726)

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Abstract

This study investigated the application of geotextiles as sustainable urban drainage systems for degradation of organic pollutant load present in stormwater. Three experimental granular filter rigs were used, packed with alternating layers made up of gravel, pea gravel, sand and either an upper layer, an upper and lower layer or no layer of geotextile. The hydraulic loading capacity matched that commonly used on conventional sand filters. Standard water quality parameters were measured and collated data was evaluated using an ANOVA and Levine's test of homogeneity of variance procedure. It was found that the rig with both upper and lower geotextiles had a statistically significant difference in data from the rig with only a single geotextile layer. High chemical oxygen demand (58–80%) and suspended solids (88–99.99%) removal rates occurred for all rigs. However, the control rig showed increased outflow concentration of nutrients indicating the potential of geotextiles for stormwater treatment.

Item Type: Article
Uncontrolled Keywords: geotextile, geofilter, granular-filtration, stormwater management, sustainable urban drainage system (SUDS), low impact development (LID)
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
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/13097

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