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Factors Affecting Performance of Sewage Treatment Plant

Ang , Yi Ching (2004) Factors Affecting Performance of Sewage Treatment Plant. Universiti Teknologi Petronas. (Unpublished)

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Abstract

The objective ofthis project is to study and find the optimum factors such as pH, temperature and microbial nutrients that affect the performance of the sewage treatment plant. The problem to the project is to minimize the value ofBiological Oxygen Demand (BOD) of an activated sludge sewage treatment plant. The effluent of a treatment plant should meet the requirements ofEnvironmental Quality (Sewage and Industrial Effluents) Regulations 1979. The scope ofthis project would be limited to the aeration tank. Although there are many other factors that can affect the performance of the treatment plant, pH, temperature and microbial nutrients are identified for analysis. In order to find the optimum conditions for a wastewater treatment plant, a multi national company is identified as my case study. Then, literature reviews on the activated sludge and other related issues are conducted to obtain background information and previous study. Experimental works was carried out to determine the value of Biochemical Oxygen Demand (BOD) using BODTrak and Chemical Oxygen Demand (COD) using digestion method. The analysis is conducted before and after the treatment at the aeration tank. The data gathered from the experiments is then further analyzed in terms of performance or percentage reduction ofBOD value. It is found out that the optimum conditions for the BOD removal is at temperature between 30°C to 31°C and pHof 7.5. The amount of Total Organic Carbon should be higher than 50mg/L with the ratio of Carbon:Nitrogen:Phosphorus of 100:10:1. All these are the nutrients for the synthesis of microorganisms in the treatment plant.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Environment
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:31
Last Modified: 25 Jan 2017 09:47
URI: http://utpedia.utp.edu.my/id/eprint/7250

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