A detailed organic matter characterization of pretreated seawater using low-pressure microfiltration hybrid systems

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dc.contributor.author Kim, Sung-Jo en_US
dc.contributor.author Kim, Chang en_US
dc.contributor.author Kim, In en_US
dc.contributor.author Nguyen, Tien en_US
dc.contributor.author Jeong, Sanghyun en_US
dc.contributor.author Vigneswaran, Saravanamuth en_US
dc.contributor.author Kandasamy, Jaya en_US
dc.contributor.author Shon, Hokyong en_US
dc.contributor.editor en_US
dc.date.accessioned 2013-11-03T17:05:35Z
dc.date.available 2013-11-03T17:05:35Z
dc.date.issued 2013 en_US
dc.identifier 2012001824 en_US
dc.identifier.citation Kim, Sung-Jo et al. 2013, 'A detailed organic matter characterization of pretreated seawater using low-pressure microfiltration hybrid systems', Elsevier Inc, vol. 428, pp. 290-300. en_US
dc.identifier.issn 0376-7388 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/24053
dc.description.abstract In this study, two different submerged membrane hybrid systems (SMHSs) namely (i) submerged membrane coagulation hybrid system (SMCHS) and (ii) submerged membrane coagulation-adsorption hybrid system (SMCAHS) were investigated as pretreatment options for seawater reverse osmosis. Organic matters in seawater before and after pretreatment were characterized in terms of XAD fractionation, molecular weight distribution (MWD) and fluorescence. A detailed study on the seawater organic matter (SWOM) structure was made through 1H-nuclear magnetic resonance (1H NMR), pyrolysis-gas chromatographya??mass spectrometry (Py-GC/MS) and liquid chromatography-mass spectrometry-ion trap-time of fright (LC/MS-IT-TOF). The seawater investigated in this study is mainly composed of hydrophilic matter (5773.2%). SMHSs removed a significant amount of organic matter. The EEM fluorescence showed a removal of humic-like materials by SMHSs. In addition, humic-like materials relative to protein-like compounds were reduced significantly but the aromaticity of humic-like materials increased. After pretreatment by SMHSs, humics and biopolymers of over 900 Da. were found to be reduced and their structure associated with element composition was also changed. The transformation of the SWOM structure after SMHSs pretreatment may have been due to hydrolyzation or oxidization of the organic compounds such as humics and biopolymers resulting in poly-conjugation to aromatic compounds. SMHSs were effective in improving the RO performance leading to higher RO permeate flux and lower permeate flux decline. The pretreatment reduced the amount of foulants on the RO membrane. en_US
dc.language en_US
dc.publisher Elsevier Inc en_US
dc.relation.isbasedon en_US
dc.title A detailed organic matter characterization of pretreated seawater using low-pressure microfiltration hybrid systems en_US
dc.parent Journal Of Membrane Science en_US
dc.journal.volume 428 en_US
dc.journal.number en_US
dc.publocation Amsterdam, Netherlands en_US
dc.identifier.startpage 290 en_US
dc.identifier.endpage 300 en_US
dc.cauo.name FEIT.School of Civil and Environmental Engineering en_US
dc.conference Verified OK en_US
dc.for 090700 en_US
dc.personcode 0000091903 en_US
dc.personcode 0000091904 en_US
dc.personcode 0000091906 en_US
dc.personcode 030428 en_US
dc.personcode 109777 en_US
dc.personcode 900451 en_US
dc.personcode 920569 en_US
dc.personcode 995130 en_US
dc.percentage 100 en_US
dc.classification.name Environmental Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Adsorption Characterization Coagulation Organic matter Submerged membrane hybrid system en_US
dc.staffid 995130 en_US
utslib.copyright.status Closed Access
utslib.copyright.date 2015-04-15 12:17:09.805752+10

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