Influence of filter media depth and vegetation on Faecal Coliform removal by stormwater biofilters

Bu, Chun Hooi and Lai, Sai Hin and Goh, Xiang Ting and Chong, Wen Tong and Chin, Ren Jie (2021) Influence of filter media depth and vegetation on Faecal Coliform removal by stormwater biofilters. Water and Environment Journal, 35 (1). pp. 181-189. ISSN 1747-6585, DOI

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Biofilters are promising technologies that widely applied in the treatment of urban stormwater. However, the microbial removal capacity performance depends greatly on the design of biofilters. Hence, this laboratory study attempts to investigate the influence of filter media depths (i.e. 150, 250, 350 and 450 mm) and the variation of native plants, that is, Cow Grass (Axonopus compressus) and Pearl Grass (Axonopus compressus,dwarf) in removing stormwater microorganism particularly Faecal Coliform (FC). Findings showed that a minimum media depth of 300 mm was required to achieve >1 log FC removal. The mean removal of FC at 450 mm depth filter exceeded 2 log for both Cow and Pearl grass biofilter columns. Results showed that there was no statistically significant difference in vegetation type on the performance of FC removal, however, Cow grass biofilter column revealed higher FC mean log removal compared to Pearl grass biofilter column.

Item Type: Article
Funders: Postgraduate Research Grant (PPP) from University of Malaya (4576)
Uncontrolled Keywords: Biofilter; Faecal coliform; Filter media depth; Stormwater
Subjects: R Medicine > R Medicine (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Medicine
Depositing User: Ms Zaharah Ramly
Date Deposited: 20 Jun 2022 07:20
Last Modified: 20 Jun 2022 07:20

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