Improved anti-biofouling performance of pressure retarded osmosis (PRO) by dosing with chlorhexidine gluconate
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sun, Peng-Fei | - |
dc.contributor.author | Kim, Taek-Seung | - |
dc.contributor.author | Kim, Han-Shin | - |
dc.contributor.author | Ham, So-Young | - |
dc.contributor.author | Jang, Yongsun | - |
dc.contributor.author | Park, Yong-Gyun | - |
dc.contributor.author | Tang, Chuyang Y. | - |
dc.contributor.author | Park, Hee-Deung | - |
dc.date.accessioned | 2021-08-31T01:01:12Z | - |
dc.date.available | 2021-08-31T01:01:12Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2020-05-01 | - |
dc.identifier.issn | 0011-9164 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/56048 | - |
dc.description.abstract | Pressure retarded osmosis (PRO) is an emerging technology capable of extracting energy from salinity gradients of wastewater paired with SWRO brine. However, this process's performance is hindered by irreversible bio-fouling due to bacteria-containing wastewater and the sponge-like support layer of PRO membranes. In this study, chlorhexidine gluconate (CHG), a non-oxidizing biocide, was continuously added to feed solution to investigate its anti-biofouling performance during PRO. CHG showed higher anti-microbial and anti-biofilm activity than did other non-oxidizing biocides. Even at low dosages of CHG, water flux declines were greatly mitigated and benefited from the internal concentration polarization (ICP)-elevated concentrations within the active-support layer interface. CHG plays a critical role by inhibiting bacterial growth, and a 65-88% reduction of extracellular polymeric substances was achieved on the membrane surface and throughout the feed spacers. Membrane characterization demonstrated that the improved performance could be attributed to a consistent structural parameter and alleviation of ICP self-compensation effects. This study thus shows that a combination of biocide dosing and pressure assisted-osmotic backwashing can be a useful strategy for controlling biofouling during the PRO process. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | OSMOTIC POWER-GENERATION | - |
dc.subject | INTERNAL CONCENTRATION POLARIZATION | - |
dc.subject | HOLLOW-FIBER MEMBRANES | - |
dc.subject | LAUROYL ARGINATE ETHYL | - |
dc.subject | FOULING BEHAVIORS | - |
dc.subject | REVERSE | - |
dc.subject | WATER | - |
dc.subject | PARAMETERS | - |
dc.subject | INSIGHTS | - |
dc.subject | ADHESION | - |
dc.title | Improved anti-biofouling performance of pressure retarded osmosis (PRO) by dosing with chlorhexidine gluconate | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Hee-Deung | - |
dc.identifier.doi | 10.1016/j.desal.2020.114376 | - |
dc.identifier.scopusid | 2-s2.0-85079547426 | - |
dc.identifier.wosid | 000519666000017 | - |
dc.identifier.bibliographicCitation | DESALINATION, v.481 | - |
dc.relation.isPartOf | DESALINATION | - |
dc.citation.title | DESALINATION | - |
dc.citation.volume | 481 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Water Resources | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.relation.journalWebOfScienceCategory | Water Resources | - |
dc.subject.keywordPlus | OSMOTIC POWER-GENERATION | - |
dc.subject.keywordPlus | INTERNAL CONCENTRATION POLARIZATION | - |
dc.subject.keywordPlus | HOLLOW-FIBER MEMBRANES | - |
dc.subject.keywordPlus | LAUROYL ARGINATE ETHYL | - |
dc.subject.keywordPlus | FOULING BEHAVIORS | - |
dc.subject.keywordPlus | REVERSE | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | PARAMETERS | - |
dc.subject.keywordPlus | INSIGHTS | - |
dc.subject.keywordPlus | ADHESION | - |
dc.subject.keywordAuthor | Pressure retarded osmosis (PRO) | - |
dc.subject.keywordAuthor | Biofouling | - |
dc.subject.keywordAuthor | Structural parameter (S) | - |
dc.subject.keywordAuthor | Internal concentration polarization (ICP) | - |
dc.subject.keywordAuthor | Chlorhexidine gluconate (CHG) | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.