Biofouling control in reverse osmosis by nitric oxide treatment and its impact on the bacterial community

Recent discoveries regarding the regulation of the biofilm life cycle by bacterial signaling systems have identified novel strategies for manipulation of biofilm development to control the biofouling of membrane-based water purification systems. Nitric oxide (NO) signaling has been shown to induce d...

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Main Authors: Oh, Hyun-Suk, Constancias, Florentin, Ramasamy, Chitrakala, Tang, Peggy Pei Yi, Yee, Mon Oo, Fane, Anthony Gordon, McDougald, Diane, Rice, Scott A.
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/142062
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1420622020-09-21T11:34:12Z Biofouling control in reverse osmosis by nitric oxide treatment and its impact on the bacterial community Oh, Hyun-Suk Constancias, Florentin Ramasamy, Chitrakala Tang, Peggy Pei Yi Yee, Mon Oo Fane, Anthony Gordon McDougald, Diane Rice, Scott A. School of Civil and Environmental Engineering School of Biological Sciences Nanyang Environment and Water Research Institute Singapore Centre for Environmental Life Sciences and Engineering Singapore Membrane Technology Centre Engineering::Environmental engineering Nitric Oxide Biofilm Dispersal Recent discoveries regarding the regulation of the biofilm life cycle by bacterial signaling systems have identified novel strategies for manipulation of biofilm development to control the biofouling of membrane-based water purification systems. Nitric oxide (NO) signaling has been shown to induce dispersal of a wide range of single- and multi-species biofilms. However, the impact of NO-mediated biofilm dispersal on the taxa composition of natural communities as well as the potential selection for non-responding community members have rarely been addressed. Here, we investigated the effect of diethylenetriamine (DETA) NONOate, an NO donor with a long half-life, on biofilm dispersal of a bacterial community responsible for membrane biofouling to address this question. The biofilm of a complex community from a fouled industrial reverse osmosis (RO) membrane was dispersed over 50% by 500 μM of DETA NONOate treatment in a continuous flow system. Once-daily treatment with DETA NONOate in a laboratory-scale RO system demonstrated its anti-biofouling effect by delaying the transmembrane pressure increase during constant-flux filtration. Characterization of the bacterial communities of dispersed cells and remaining biofilm cells using a 16S Illumina MiSeq metabarcoding approach demonstrated that biofilm dispersal by DETA NONOate had no selection bias in the community. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2020-06-15T07:03:15Z 2020-06-15T07:03:15Z 2018 Journal Article Oh, H.-S., Constancias, F., Ramasamy, C., Tang, P. P. Y., Yee, M. O., Fane, A. G., . . . Rice, S. A. (2018). Biofouling control in reverse osmosis by nitric oxide treatment and its impact on the bacterial community. Journal of Membrane Science, 550, 313-321. doi:10.1016/j.memsci.2018.01.012 0376-7388 https://hdl.handle.net/10356/142062 10.1016/j.memsci.2018.01.012 2-s2.0-85044644644 550 313 321 en Journal of Membrane Science © 2018 The Authors (Published by Elsevier B.V.). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/BY-NC-ND/4.0/). application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Environmental engineering
Nitric Oxide
Biofilm Dispersal
spellingShingle Engineering::Environmental engineering
Nitric Oxide
Biofilm Dispersal
Oh, Hyun-Suk
Constancias, Florentin
Ramasamy, Chitrakala
Tang, Peggy Pei Yi
Yee, Mon Oo
Fane, Anthony Gordon
McDougald, Diane
Rice, Scott A.
Biofouling control in reverse osmosis by nitric oxide treatment and its impact on the bacterial community
description Recent discoveries regarding the regulation of the biofilm life cycle by bacterial signaling systems have identified novel strategies for manipulation of biofilm development to control the biofouling of membrane-based water purification systems. Nitric oxide (NO) signaling has been shown to induce dispersal of a wide range of single- and multi-species biofilms. However, the impact of NO-mediated biofilm dispersal on the taxa composition of natural communities as well as the potential selection for non-responding community members have rarely been addressed. Here, we investigated the effect of diethylenetriamine (DETA) NONOate, an NO donor with a long half-life, on biofilm dispersal of a bacterial community responsible for membrane biofouling to address this question. The biofilm of a complex community from a fouled industrial reverse osmosis (RO) membrane was dispersed over 50% by 500 μM of DETA NONOate treatment in a continuous flow system. Once-daily treatment with DETA NONOate in a laboratory-scale RO system demonstrated its anti-biofouling effect by delaying the transmembrane pressure increase during constant-flux filtration. Characterization of the bacterial communities of dispersed cells and remaining biofilm cells using a 16S Illumina MiSeq metabarcoding approach demonstrated that biofilm dispersal by DETA NONOate had no selection bias in the community.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Oh, Hyun-Suk
Constancias, Florentin
Ramasamy, Chitrakala
Tang, Peggy Pei Yi
Yee, Mon Oo
Fane, Anthony Gordon
McDougald, Diane
Rice, Scott A.
format Article
author Oh, Hyun-Suk
Constancias, Florentin
Ramasamy, Chitrakala
Tang, Peggy Pei Yi
Yee, Mon Oo
Fane, Anthony Gordon
McDougald, Diane
Rice, Scott A.
author_sort Oh, Hyun-Suk
title Biofouling control in reverse osmosis by nitric oxide treatment and its impact on the bacterial community
title_short Biofouling control in reverse osmosis by nitric oxide treatment and its impact on the bacterial community
title_full Biofouling control in reverse osmosis by nitric oxide treatment and its impact on the bacterial community
title_fullStr Biofouling control in reverse osmosis by nitric oxide treatment and its impact on the bacterial community
title_full_unstemmed Biofouling control in reverse osmosis by nitric oxide treatment and its impact on the bacterial community
title_sort biofouling control in reverse osmosis by nitric oxide treatment and its impact on the bacterial community
publishDate 2020
url https://hdl.handle.net/10356/142062
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