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Combining Oily Wastewater with Domestic Wastewater for further Treatment by Biofiltration Method

Siti Suhairi Binti Muhammad Idiris, Siti Suhairi (2009) Combining Oily Wastewater with Domestic Wastewater for further Treatment by Biofiltration Method. Universiti Teknologi Petronas, Sri Iskandar,Tronoh,Perak. (Unpublished)

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Abstract

Issues concerning stormwater runoff quality and it impact on the ecosystem of the receiving water bodies have lead towards stormwater best management practice. One of the stormwater management practices is the use of biofiltration systems that allow variety of pollutants removal mechanisms. There are three main mechanisms of pollutants removal involved within the system which are physical, chemical and biological processes. Current application of the biofiltration focuses mainly on treating ordinary stormwater runoff but not for oily stormwater runoff. This study examines the potential application of biofiltration system in treating oily wastewater with addition of domestic wastewater. Laboratory scale biofiltration columns consisting of sand for bottom layer, activated carbon for middle layer and planting media for the top layer were used in this study. Four columns were constructed and the combined wastewater was left in the system for a period of 2 days, 4 days, 7 days and 10 days for each columns. The parameters for influent and effluent wastewater in term of chemical oxygen demand (COD), total organic carbon (TOC), total suspended solid (TSS), turbidity, nutrients content (ammonia-nitrogen, nitrate-nitrogen and total phosphorus), and zinc were analyzed. The hydraulic conductivity of the filter media was 0.0177 mm/sec and the pH of the soil was 7.61. The results indicate reduction of all the pollutants after treatment. The biofiltration system able to remove up to 90% of COD, 35% of TOC, 88% of TSS, 70% of turbidity, 77% of ammonia-nitrogen, 86% of nitratenitrogen, and 86% of phosphorus after 10 days of retention time. According to Environmental Quality (Sewage Industrial Effluent Regulations, 1979), the effluents quality meets the standard A limit

Item Type: Final Year Project
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Users 5 not found.
Date Deposited: 11 Jan 2012 12:24
Last Modified: 25 Jan 2017 09:44
URI: http://utpedia.utp.edu.my/id/eprint/617

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