Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13198
Title: Anaerobic sequencing batch reactor for the treatment of municipal wastewater
Authors: WONG SHIH WEI
Keywords: anaerobic sequencing batch reactor municipal wastewater
Issue Date: 26-May-2008
Source: WONG SHIH WEI (2008-05-26). Anaerobic sequencing batch reactor for the treatment of municipal wastewater. ScholarBank@NUS Repository.
Abstract: An anaerobic sequencing batch reactor (AnSBR) was investigated for the treatment of municipal wastewater from a local water treatment plant. The study showed that comparing the start-up HRT of 16h to 8h, the biomass retention capacity, sCOD removal efficiency and biogas yield were lower but the start-up duration, TSS, VSS and tCOD removal efficiencies were longer and higher. There was significant difference in the performance when the AnSBR was operated at different HRTs. Powdered activated carbon was added at a dosage of 10, 15 and 20% (w/w), resulting in a large improvement in the suspended solids and organics removal efficiency, amount of methane produced, as well as the consistency of removal efficiency. In addition, the anaerobic sludge wasted from the AnSBR was found to meet the international standard for assessing sludge biostability which meant that no further treatment was needed before the disposal of the sludge.
URI: http://scholarbank.nus.edu.sg/handle/10635/13198
Appears in Collections:Master's Theses (Open)

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