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Sequencing Batch Reactor (SBR) Technology for Biological Treatment of Sewage

The sequencing batch reactor (SBR) has become popular in recent years since Irvine and Davis (1979) described its operation. The SBR achieves the processes in a framework of space compared to the conventional system, which achieves in terms of space. There are generally 5 operational steps in a SBR...

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Main Author: Lim, Chin Ming
Format: Thesis
Language:English
Published: 2001
Online Access:http://ethesis.upm.edu.my/id/eprint/3432/1/FK_2001_49_F.pdf
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spelling oai:ethesis.upm.edu.my:3432 http://ethesis.upm.edu.my/id/eprint/3432/ Sequencing Batch Reactor (SBR) Technology for Biological Treatment of Sewage Lim, Chin Ming The sequencing batch reactor (SBR) has become popular in recent years since Irvine and Davis (1979) described its operation. The SBR achieves the processes in a framework of space compared to the conventional system, which achieves in terms of space. There are generally 5 operational steps in a SBR cycle namely Fill, React, Settle, Draw and Idle. A bench scale SBR was studied at 2 different strategies. The study was conducted at different cycle times (6h, 8h and lOh) and different operational mode based on the ratio of anaerobic and aerobic period (1/2.7, 1/1 and l.7/l). The study was undertaken to investigate the effluent quality, removal efficiency, SVI and kinetic growth coefficient. Results from strategy A (different cycle time) showed that increases in cycle time led to decrease in the removal of TSS, COD and BODs. Best results were obtained for the system with the 6h-cycle time, followed by the 8h-cycle time and lastly was the 10h-cycle time. Six hours cycle time was chosen for strategy B mainly due to the overall better removal efficiency on TSS, COD and BODs. There were 3 operational modes being examined in strategy B, they were 112.7 (longest aerobic period), 1/1 and 1.7/1(shortest aerobic periods). Best results were obtained from the 1/2. 7 operational mode with the longest aerobic period (lowest Li, which was 1. 22 mg/mg.d), followed by 1/1 operational mode and lastly was the 1.711 operational mode. The higher removal efficiency was associated with the longer aerobic period, the kinetic growth coefficient and SVI also increased with the increasing of aerobic period. Therefore, the 6h-cycle time and 112.7 operational mode appeared to be the most reliable option in this study. F or further studies, more work could be done to have a better understanding of the SBR system. For instance, inclusion of an anoxic period in the React step would enhance denitrification process to achieve better effluent quality. Moreover, kinetic growth model can be further explored by thymidine assay. 2001-08 Thesis NonPeerReviewed application/pdf en http://ethesis.upm.edu.my/id/eprint/3432/1/FK_2001_49_F.pdf Lim, Chin Ming (2001) Sequencing Batch Reactor (SBR) Technology for Biological Treatment of Sewage. Masters thesis, Universiti Putra Malaysia. (FK 2001 49).
institution UPM eTHESES
collection UPM eTHESES
language English
description The sequencing batch reactor (SBR) has become popular in recent years since Irvine and Davis (1979) described its operation. The SBR achieves the processes in a framework of space compared to the conventional system, which achieves in terms of space. There are generally 5 operational steps in a SBR cycle namely Fill, React, Settle, Draw and Idle. A bench scale SBR was studied at 2 different strategies. The study was conducted at different cycle times (6h, 8h and lOh) and different operational mode based on the ratio of anaerobic and aerobic period (1/2.7, 1/1 and l.7/l). The study was undertaken to investigate the effluent quality, removal efficiency, SVI and kinetic growth coefficient. Results from strategy A (different cycle time) showed that increases in cycle time led to decrease in the removal of TSS, COD and BODs. Best results were obtained for the system with the 6h-cycle time, followed by the 8h-cycle time and lastly was the 10h-cycle time. Six hours cycle time was chosen for strategy B mainly due to the overall better removal efficiency on TSS, COD and BODs. There were 3 operational modes being examined in strategy B, they were 112.7 (longest aerobic period), 1/1 and 1.7/1(shortest aerobic periods). Best results were obtained from the 1/2. 7 operational mode with the longest aerobic period (lowest Li, which was 1. 22 mg/mg.d), followed by 1/1 operational mode and lastly was the 1.711 operational mode. The higher removal efficiency was associated with the longer aerobic period, the kinetic growth coefficient and SVI also increased with the increasing of aerobic period. Therefore, the 6h-cycle time and 112.7 operational mode appeared to be the most reliable option in this study. F or further studies, more work could be done to have a better understanding of the SBR system. For instance, inclusion of an anoxic period in the React step would enhance denitrification process to achieve better effluent quality. Moreover, kinetic growth model can be further explored by thymidine assay.
format Thesis
author Lim, Chin Ming
spellingShingle Lim, Chin Ming
Sequencing Batch Reactor (SBR) Technology for Biological Treatment of Sewage
author_facet Lim, Chin Ming
author_sort Lim, Chin Ming
title Sequencing Batch Reactor (SBR) Technology for Biological Treatment of Sewage
title_short Sequencing Batch Reactor (SBR) Technology for Biological Treatment of Sewage
title_full Sequencing Batch Reactor (SBR) Technology for Biological Treatment of Sewage
title_fullStr Sequencing Batch Reactor (SBR) Technology for Biological Treatment of Sewage
title_full_unstemmed Sequencing Batch Reactor (SBR) Technology for Biological Treatment of Sewage
title_sort sequencing batch reactor (sbr) technology for biological treatment of sewage
publishDate 2001
url http://ethesis.upm.edu.my/id/eprint/3432/1/FK_2001_49_F.pdf
_version_ 1819310369593622528
score 13.4562235

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