Effect of pharmaceuticals on the performance of a novel osmotic membrane bioreactor (OMBR)

The integration of forward osmosis (FO) and biological process, known as the osmotic membrane bioreactor (OMBR), may be viewed as beyond the state of the art for used water treatment and water reclamation. While it is known that the OMBR is able to produce good product water quality in terms of tota...

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Main Authors: Wang, Rong, Tang, Chuyang Y., Lay, Winson Chee Loong, Zhang, Qiaoyun, Zhang, Jinsong, McDougald, Diane, Liu, Yu, Fane, Anthony Gordon
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2013
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Online Access:https://hdl.handle.net/10356/97261
http://hdl.handle.net/10220/12098
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-972612020-03-07T12:48:43Z Effect of pharmaceuticals on the performance of a novel osmotic membrane bioreactor (OMBR) Wang, Rong Tang, Chuyang Y. Lay, Winson Chee Loong Zhang, Qiaoyun Zhang, Jinsong McDougald, Diane Liu, Yu Fane, Anthony Gordon School of Civil and Environmental Engineering Singapore Membrane Technology Centre DRNTU::Engineering::Environmental engineering::Water treatment The integration of forward osmosis (FO) and biological process, known as the osmotic membrane bioreactor (OMBR), may be viewed as beyond the state of the art for used water treatment and water reclamation. While it is known that the OMBR is able to produce good product water quality in terms of total organic carbon (TOC) removal, limited information is available on the removal of organic micro-pollutants in relation to process performance under the concentrated environment. In this study, a novel OMBR system was continuously operated over 73 days, during which pharmaceuticals were dosed on two occasions into the system. It was found that while pharmaceutical removal was high (>96%), other process parameters in the form of TOC, mixed liquor suspended solids (MLSS) and extracellular polymeric substances (EPS) were unmistakably affected. The major portion of TOC that permeated the FO membrane was found to be low-molecular weight neutral compounds which were associated with the impaired biological process. Microbiological analysis confirmed shifts in microbial populations occurred due to the increased salinity and dosage of the pharmaceuticals. The study demonstrated the importance of the biological process for optimal OMBR system performance, and paves the way for further research in this direction. 2013-07-24T04:08:49Z 2019-12-06T19:40:40Z 2013-07-24T04:08:49Z 2019-12-06T19:40:40Z 2012 2012 Journal Article Lay, W. C. L., Zhang, Q., Zhang, J., McDougald, D., Tang, C., Wang, R., et al. (2012). Effect of Pharmaceuticals on the Performance of a Novel Osmotic Membrane Bioreactor (OMBR). Separation Science and Technology, 47(4), 543-554. 0149-6395 https://hdl.handle.net/10356/97261 http://hdl.handle.net/10220/12098 10.1080/01496395.2011.630249 en Separation science and technology © 2012 Taylor & Francis Group, LLC.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Environmental engineering::Water treatment
spellingShingle DRNTU::Engineering::Environmental engineering::Water treatment
Wang, Rong
Tang, Chuyang Y.
Lay, Winson Chee Loong
Zhang, Qiaoyun
Zhang, Jinsong
McDougald, Diane
Liu, Yu
Fane, Anthony Gordon
Effect of pharmaceuticals on the performance of a novel osmotic membrane bioreactor (OMBR)
description The integration of forward osmosis (FO) and biological process, known as the osmotic membrane bioreactor (OMBR), may be viewed as beyond the state of the art for used water treatment and water reclamation. While it is known that the OMBR is able to produce good product water quality in terms of total organic carbon (TOC) removal, limited information is available on the removal of organic micro-pollutants in relation to process performance under the concentrated environment. In this study, a novel OMBR system was continuously operated over 73 days, during which pharmaceuticals were dosed on two occasions into the system. It was found that while pharmaceutical removal was high (>96%), other process parameters in the form of TOC, mixed liquor suspended solids (MLSS) and extracellular polymeric substances (EPS) were unmistakably affected. The major portion of TOC that permeated the FO membrane was found to be low-molecular weight neutral compounds which were associated with the impaired biological process. Microbiological analysis confirmed shifts in microbial populations occurred due to the increased salinity and dosage of the pharmaceuticals. The study demonstrated the importance of the biological process for optimal OMBR system performance, and paves the way for further research in this direction.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Wang, Rong
Tang, Chuyang Y.
Lay, Winson Chee Loong
Zhang, Qiaoyun
Zhang, Jinsong
McDougald, Diane
Liu, Yu
Fane, Anthony Gordon
format Article
author Wang, Rong
Tang, Chuyang Y.
Lay, Winson Chee Loong
Zhang, Qiaoyun
Zhang, Jinsong
McDougald, Diane
Liu, Yu
Fane, Anthony Gordon
author_sort Wang, Rong
title Effect of pharmaceuticals on the performance of a novel osmotic membrane bioreactor (OMBR)
title_short Effect of pharmaceuticals on the performance of a novel osmotic membrane bioreactor (OMBR)
title_full Effect of pharmaceuticals on the performance of a novel osmotic membrane bioreactor (OMBR)
title_fullStr Effect of pharmaceuticals on the performance of a novel osmotic membrane bioreactor (OMBR)
title_full_unstemmed Effect of pharmaceuticals on the performance of a novel osmotic membrane bioreactor (OMBR)
title_sort effect of pharmaceuticals on the performance of a novel osmotic membrane bioreactor (ombr)
publishDate 2013
url https://hdl.handle.net/10356/97261
http://hdl.handle.net/10220/12098
_version_ 1681049556030062592