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dc.contributor.authorIm, Sung Ju
dc.contributor.authorFortunato, Luca
dc.contributor.authorJang, Am
dc.date.accessioned2021-04-11T07:37:10Z
dc.date.available2021-04-11T07:37:10Z
dc.date.issued2021-04-08
dc.date.submitted2021-01-25
dc.identifier.citationIm, S. J., Fortunato, L., & Jang, A. (2021). Real-time fouling monitoring and membrane autopsy analysis in forward osmosis for wastewater reuse. Water Research, 197, 117098. doi:10.1016/j.watres.2021.117098
dc.identifier.issn0043-1354
dc.identifier.pmid33831777
dc.identifier.doi10.1016/j.watres.2021.117098
dc.identifier.urihttp://hdl.handle.net/10754/668630
dc.description.abstractForward osmosis process in emerging technology which can applicable in wastewater reuse and desalination simultaneously. In this study, the development of fouling on the FO membrane surface was monitored in real-time. The investigation of fouling layer physical and chemical characteristics was assessed by performance evaluation and in-depth analysis of fouling layer. Non-invasive visual monitoring and in-depth autopsy, combined with the performance and image analyses provided a better understanding of fouling phenomena. The relative roughness of the fouling layer was correlated with water flux decrease while the fouling layer thickness decreased rapidly when fouling was stabilized. From 66-day operation using the primary wastewater as the feed, membrane fouling development was classified into 4 phases: virgin performance, initial deposition, stabilization and aggregation. With the growing fouling layer and with aggregation, the removal rate of organic matter was reduced from 99 to 70%. Conversely, the removal rate of inorganic matter was maintained at a level higher than 90%. The fractionation of physical and chemical extraction had the following characteristics: TPI>HPI>HPO and HPI>TPI>HPO respectively. Also, low molecular weight and building blocks like organic matter were observed with a high composition ratio of fouling layer. Through the correlation between the process performance, real-time monitoring of fouling layer formation and deep-layer fouling analysis, it was possible to identify the major membrane contaminants and propose process optimization guidelines.
dc.description.sponsorshipThis research was supported by a grant (20CTAP-C156950–01) from Technology Advancement Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0043135421002967
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Water research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Water research, [197, , (2021-04-08)] DOI: 10.1016/j.watres.2021.117098 . © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleReal-time fouling monitoring and membrane autopsy analysis in forward osmosis for wastewater reuse.
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.identifier.journalWater research
dc.rights.embargodate2023-04-08
dc.eprint.versionPost-print
dc.contributor.institutionGraduate School of Water Resources, Sungkyunkwan University (SKKU), 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, South Korea.
dc.identifier.volume197
dc.identifier.pages117098
kaust.personFortunato, Luca
dc.date.accepted2021-03-27


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