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Feasibility of the direct filtration over peat filter media for bathroom greywater treatment

Radin Mohamed, Radin Maya Saphira and Chan, Chee-Ming and Senin, Haziq and Mohd Kassim, Amir Hashim (2014) Feasibility of the direct filtration over peat filter media for bathroom greywater treatment. Journal of Materials and Environmental Science, 5 (6). pp. 2021-2029. ISSN 2028-2508

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Abstract

Peat has been identified as one of major groups of soils found in Malaysia, where it covers about 3.0 million hectare or 8 % of the total area of Malaysia. The present study examines the feasibility of using a direct filtration of locally available peat for treating bathroom greywater. The peat was sampled in bulks, remoulded and pressed into a filter cake form, the peat mass was installed in a lab-scale reactor where a raw bathroom greywater percolated through it for 28 days. The raw and treated bathroom greywater was tested and compared for its quality parameter. Complementary one-dimensional consolidation and X-ray fluorescence analysis was carried out on the peat samples to monitor the physic-chemical elemental contents pre and post-filtration. After treated, pH of the greywater was improved from acidic 3.8 to neutral 6.1. The suspended solids were found in the treated water with the highest concentration of 501.33 mg/L. It was suggested the pre-treatment of some sand or gravel media can improve the efficiency for physical parameter. The treatment gave the BOD reduction of BOD5 up to 74%. It was found that the peat media can effectively improve the quality of the bathroom greywater. The one-dimensional compressibility test results showed negligible effect of the greywater chemistry on the inherent stiffness. The X-ray fluorescence analysis showed the post-filtration peat soil contained a marked reduction in Fe2O3 and increased of CaO. The clogging effect inadvertently transformed the peat soil into a more rigid mass, with potential for reuse as an agricultural soil bed.

Item Type: Article
Uncontrolled Keywords: bathroom greywater; peat soil; village house; greywater treatment
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD1-157 Environmental technology. Sanitary engineering
T Technology > TD Environmental technology. Sanitary engineering > TD172-193 Environmental pollution
Divisions: Faculty of Civil and Environmental Engineering > Department of Water and Environmental Engineering
Depositing User: Dr Radin Maya Saphira Radin Mohamed
Date Deposited: 10 Nov 2014 08:24
Last Modified: 10 Nov 2014 08:24
URI: http://eprints.uthm.edu.my/id/eprint/6194
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