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dc.contributor.authorTran, Anh Thu K
dc.contributor.authorNora, Jullok
dc.contributor.authorMeesschaert, Boudewijn D.
dc.contributor.authorPinoy, Luc Jozef Jan
dc.contributor.authorVan Der Bruggen, Bart
dc.date.accessioned2014-06-17T08:20:31Z
dc.date.available2014-06-17T08:20:31Z
dc.date.issued2013-07
dc.identifier.citationJournal of Colloid and Interface Science, vol. 401, 2013, pages 107-115en_US
dc.identifier.issn0021-9797
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0021979713002816
dc.identifier.urihttp://dspace.unimap.edu.my:80/dspace/handle/123456789/35605
dc.descriptionLink to publisher's homepage at http://www.elsevier.com/en_US
dc.description.abstractThis study aims to evaluate the feasibility of a pellet reactor in reducing the scaling potential in electrodialysis with bipolar membranes for water containing a high concentration of calcium by adding sodium carbonate to precipitate carbonate as calcium carbonate on granular seed material. The optimized operating condition obtained at pH 11.1, and a ratio of [CO32-]:[Ca2+]=1.2:1 enabled to obtain 90% efficiency of calcium removal from real water. The efficiency of scaling potential removal was validated by comparing the scaling level on the membrane surface of two electrodialysis batches of a washing water, with and without pretreatment. For the latter, scalants were found at both sides of the cation exchange membrane (FKB), diluate and base sides, identified as calcium and magnesium precipitates. Furthermore, there was also a severe scaling effect at the base side of the bipolar membrane (FBM). However, a different observation was found for the pretreated water. SEM and elemental analysis for both FKB and FBM membranes demonstrated less scaling on both membrane surfaces.en_US
dc.language.isoenen_US
dc.publisherElsevier Inc.en_US
dc.subjectBipolar membrane electrodialysisen_US
dc.subjectPellet reactoren_US
dc.subjectPretreatmenten_US
dc.subjectScalingen_US
dc.subjectWater treatmenten_US
dc.titlePellet reactor pretreatment: A feasible method to reduce scaling in bipolar membrane electrodialysisen_US
dc.typeArticleen_US
dc.contributor.urlanh.tran@cit.kuleuven.been_US
dc.contributor.urlnorajullok@unimap.edu.myen_US
dc.contributor.urlbart.vanderbruggen@cit.kuleuven.been_US


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