Feasibility of the direct filtration over peat filter media for bathroom greywater treatment
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...
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| Format: | Article |
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University of Mohammed Premier Oujda
2014
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| Online Access: | http://www.jmaterenvironsci.com/ http://www.jmaterenvironsci.com/ http://eprints.uthm.edu.my/6194/1/251%2DJMES%2D1333%2D2014%2DMohamed.pdf |
| Summary: | 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. |
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