Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.watres.2003.08.002
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dc.titleTreatability of organic fractions derived from secondary effluent by reverse osmosis membrane
dc.contributor.authorHu, J.Y.
dc.contributor.authorOng, S.L.
dc.contributor.authorShan, J.H.
dc.contributor.authorKang, J.B.
dc.contributor.authorNg, W.J.
dc.date.accessioned2014-10-07T06:28:06Z
dc.date.available2014-10-07T06:28:06Z
dc.date.issued2003-12
dc.identifier.citationHu, J.Y., Ong, S.L., Shan, J.H., Kang, J.B., Ng, W.J. (2003-12). Treatability of organic fractions derived from secondary effluent by reverse osmosis membrane. Water Research 37 (19) : 4801-4809. ScholarBank@NUS Repository. https://doi.org/10.1016/j.watres.2003.08.002
dc.identifier.issn00431354
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/84692
dc.description.abstractDissolved organic matters (DOMs) from two batches of secondary effluent collected from a local water reclamation plant were fractionated using column chromatographic method with non-ionic resins XAD-8, AG MP-50 and IRA-96. Seven isolated fractions were obtained from the fractionation study and these fractions were quantified using DOC, UV254 and SUVA values. The fractionation study revealed that the secondary effluent samples comprised about 47.3-60.6% of hydrophobic and 39.4-52.7% of hydrophilic solutes. The treatability of each isolated fraction was investigated by subjecting each fraction to reverse osmosis (RO) treatment individually. It was noted that RO process could achieve high DOC rejections for acid and neutral fractions (ranging from 80% to 98% removal) probably due to the negative charge of RO membrane. The results obtained also indicated that hydrophobicity of DOMs is significant in determining treatability of organic species by RO process. The performance of RO in terms of DOC rejection of un-fractionated secondary effluent was also investigated to assess possible effects of interactions among organic fractions on their treatability by RO process. It was noted that DOC rejection associated with the un-fractionated secondary effluent was generally higher (ranging from 2% to 45%) than the corresponding rejection obtained from each individual fraction isolated from the secondary effluent. This finding suggested there is a beneficial interaction among the fractions that in turn has contributed towards a better overall DOC rejection performance by RO treatment. © 2003 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.watres.2003.08.002
dc.sourceScopus
dc.subjectDissolved organic carbon
dc.subjectFractionation
dc.subjectInteraction
dc.subjectOrganics treatability
dc.subjectReverse osmosis
dc.subjectSecondary effluent
dc.typeArticle
dc.contributor.departmentCIVIL ENGINEERING
dc.description.doi10.1016/j.watres.2003.08.002
dc.description.sourcetitleWater Research
dc.description.volume37
dc.description.issue19
dc.description.page4801-4809
dc.description.codenWATRA
dc.identifier.isiut000186247200028
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