Staff View: Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period

Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period

Effluent circulation may affect the phase separation ability of a compartmentalized anaerobic reactor such as anaerobic baffled reactor. In this study, it is proven that this is not always the case. Moreover, the effect of circulation to this type of reactor under different hydraulic retention time...

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Main Authors:	Mohd. Aris, Maizatul Asnie, Chelliapan, Shreeshivadasan, Mohd., Mohd. Fadhil, Anwar, Aznah Nor, Shahperi, Rafidah, Selvam, Sivathass Bannir
Format:	Article
Published:	Taylor & Francis Inc 2016
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/69270/ http://dx.doi.org/ 10.1080/19443994.2015.1094676
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spelling	my.utm.692702017-11-22T00:45:12Z http://eprints.utm.my/id/eprint/69270/ Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period Mohd. Aris, Maizatul Asnie Chelliapan, Shreeshivadasan Mohd., Mohd. Fadhil Anwar, Aznah Nor Shahperi, Rafidah Selvam, Sivathass Bannir TP Chemical technology Effluent circulation may affect the phase separation ability of a compartmentalized anaerobic reactor such as anaerobic baffled reactor. In this study, it is proven that this is not always the case. Moreover, the effect of circulation to this type of reactor under different hydraulic retention time (HRT) is still unclear. The present study investigates the start-up performance of a novel modified anaerobic baffled reactor (MABR) at various effluent circulation ratios (R). Results showed that tremendous increase of the treatment efficiency and stable performance was achieved by the MABR system when effluent circulation was employed (e.g. 95.7% COD removal during R of 2 at HRT of 2d and an OLR of 0.75kgCODm(-3)d(-1)). The pH profiles, volatile acids (HOAc) occurrence and biogas production during the start-up period showed favourable conditions in the reactor. In addition, the effect of HRT variations (4, 3, 2 and 1d) to the MABR with circulation operation R of 2 (optimum circulation) showed the HRT of 2 and 3 caused the MABR to start-up rapidly and efficiently with a chemical oxygen demand removal efficiency of more than 90%. It was concluded that rapid start-up can be achieved by applying effluent circulation to the MABR. Taylor & Francis Inc 2016 Article PeerReviewed Mohd. Aris, Maizatul Asnie and Chelliapan, Shreeshivadasan and Mohd., Mohd. Fadhil and Anwar, Aznah Nor and Shahperi, Rafidah and Selvam, Sivathass Bannir (2016) Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period. Desalination and Water Treatment, 57 (40). pp. 18597-18605. ISSN 1944-3994 http://dx.doi.org/ 10.1080/19443994.2015.1094676 DOI: 10.1080/19443994.2015.1094676
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TP Chemical technology
spellingShingle	TP Chemical technology Mohd. Aris, Maizatul Asnie Chelliapan, Shreeshivadasan Mohd., Mohd. Fadhil Anwar, Aznah Nor Shahperi, Rafidah Selvam, Sivathass Bannir Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period
description	Effluent circulation may affect the phase separation ability of a compartmentalized anaerobic reactor such as anaerobic baffled reactor. In this study, it is proven that this is not always the case. Moreover, the effect of circulation to this type of reactor under different hydraulic retention time (HRT) is still unclear. The present study investigates the start-up performance of a novel modified anaerobic baffled reactor (MABR) at various effluent circulation ratios (R). Results showed that tremendous increase of the treatment efficiency and stable performance was achieved by the MABR system when effluent circulation was employed (e.g. 95.7% COD removal during R of 2 at HRT of 2d and an OLR of 0.75kgCODm(-3)d(-1)). The pH profiles, volatile acids (HOAc) occurrence and biogas production during the start-up period showed favourable conditions in the reactor. In addition, the effect of HRT variations (4, 3, 2 and 1d) to the MABR with circulation operation R of 2 (optimum circulation) showed the HRT of 2 and 3 caused the MABR to start-up rapidly and efficiently with a chemical oxygen demand removal efficiency of more than 90%. It was concluded that rapid start-up can be achieved by applying effluent circulation to the MABR.
format	Article
author	Mohd. Aris, Maizatul Asnie Chelliapan, Shreeshivadasan Mohd., Mohd. Fadhil Anwar, Aznah Nor Shahperi, Rafidah Selvam, Sivathass Bannir
author_facet	Mohd. Aris, Maizatul Asnie Chelliapan, Shreeshivadasan Mohd., Mohd. Fadhil Anwar, Aznah Nor Shahperi, Rafidah Selvam, Sivathass Bannir
author_sort	Mohd. Aris, Maizatul Asnie
title	Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period
title_short	Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period
title_full	Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period
title_fullStr	Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period
title_full_unstemmed	Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period
title_sort	effect of effluent circulation and hydraulic retention time (hrt) on the performance of a modified anaerobic baffled reactor (mabr) during start-up period
publisher	Taylor & Francis Inc
publishDate	2016
url	http://eprints.utm.my/id/eprint/69270/ http://dx.doi.org/ 10.1080/19443994.2015.1094676
_version_	1643656045910818816
score	13.211869

Effect of effluent circulation and hydraulic retention time (HRT) on the performance of a modified anaerobic baffled reactor (MABR) during start-up period

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