DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, HyoJeon | ko |
dc.contributor.author | Fagkaew, Pattarasiri | ko |
dc.contributor.author | Ahn Kwangtaek | ko |
dc.contributor.author | Lim, Jaelim | ko |
dc.contributor.author | Lee, Youngju | ko |
dc.contributor.author | Kang, Seoktae | ko |
dc.date.accessioned | 2018-03-21T02:52:20Z | - |
dc.date.available | 2018-03-21T02:52:20Z | - |
dc.date.created | 2018-02-20 | - |
dc.date.created | 2018-02-20 | - |
dc.date.created | 2018-02-20 | - |
dc.date.created | 2018-02-20 | - |
dc.date.created | 2018-02-20 | - |
dc.date.issued | 2017-12 | - |
dc.identifier.citation | DESALINATION AND WATER TREATMENT, v.99, pp.125 - 131 | - |
dc.identifier.issn | 1944-3994 | - |
dc.identifier.uri | http://hdl.handle.net/10203/240739 | - |
dc.description.abstract | In this study, fouled reverse osmosis (RO) membranes from the full-scale low pressure reverse osmosis (LPRO) plant were autopsied in March (RO-M) and September (RO-S), and investigated before and after the chemical cleaning. The characteristics of residual matters on LPRO membrane surfaces were then determined via several analysis methods including excitation-emission matrix, molecular weight distribution, thermogravimetric analysis, and organic analyses. The foulants were predominantly composed of hydrophobic organic matters with dense structures on RO-S, while loose structure of CaSO4 and BaSO4 scaling dominantly covered membrane surfaces on RO-M. Interestingly, loose structure of scaling provided more significant growth of biofilm and subsequently higher organic mass per unit area on RO-M. The order of basic-acidic cleaning showed improved flux recovery (87%) than acidic-basic cleaning (79%) due to the dense structure of biofilm layer on RO-S. In case of RO-M, foulants were easily removed without regarding the order of chemical cleaning (higher than 93% of initial flux recovery) due to the loose structure of fouling layer. The results proposed that the membrane foulants might have seasonal differences, and the cleaning order of basic-acidic chemicals would provide higher flux recovery in the case of the fluctuation in influent quality. | - |
dc.language | English | - |
dc.publisher | DESALINATION PUBL | - |
dc.title | Chemical cleaning strategy of full-scale low-pressure reverse osmosis (LPRO) membrane process: case study | - |
dc.type | Article | - |
dc.identifier.wosid | 000425242300017 | - |
dc.identifier.scopusid | 2-s2.0-85042085357 | - |
dc.type.rims | ART | - |
dc.citation.volume | 99 | - |
dc.citation.beginningpage | 125 | - |
dc.citation.endingpage | 131 | - |
dc.citation.publicationname | DESALINATION AND WATER TREATMENT | - |
dc.identifier.doi | 10.5004/dwt.2017.21666 | - |
dc.contributor.localauthor | Kang, Seoktae | - |
dc.contributor.nonIdAuthor | Ahn Kwangtaek | - |
dc.contributor.nonIdAuthor | Lim, Jaelim | - |
dc.contributor.nonIdAuthor | Lee, Youngju | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Reverse osmosis membrane | - |
dc.subject.keywordAuthor | Autopsy | - |
dc.subject.keywordAuthor | Case study | - |
dc.subject.keywordAuthor | Cleaning strategy | - |
dc.subject.keywordAuthor | Membrane characteristic | - |
dc.subject.keywordPlus | DISSOLVED ORGANIC-MATTER | - |
dc.subject.keywordPlus | WATER-TREATMENT | - |
dc.subject.keywordPlus | NANOFILTRATION | - |
dc.subject.keywordPlus | DESALINATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | TECHNOLOGY | - |
dc.subject.keywordPlus | PLANT | - |
dc.subject.keywordPlus | RO | - |
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