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dc.contributor.authorZhou, Xu
dc.contributor.authorChen, Hongyi
dc.contributor.authorGao, Shu-Hong
dc.contributor.authorHan, Songfang
dc.contributor.authorTu, Renjie
dc.contributor.authorWei, Wei
dc.contributor.authorCai, Chen
dc.contributor.authorLiu, Peng
dc.contributor.authorJin, Wenbiao
dc.contributor.authorWang, Qilin
dc.date.accessioned2017-10-30T12:30:51Z
dc.date.available2017-10-30T12:30:51Z
dc.date.issued2017
dc.identifier.issn0256-1115
dc.identifier.doi10.1007/s11814-017-0187-x
dc.identifier.urihttp://hdl.handle.net/10072/350123
dc.description.abstractThe advanced oxidization process has proven to be an effective conditioning technique for the improvement of sludge dewaterability. Zero-valent iron (ZVI) is often used as the catalyst of the oxidization process. This study applied ZVI with different particle sizes to the ZVI- peroxydisulfate reactions, and investigated their effects on the improvement of sludge dewaterability. It was found that ZVI particles with smaller sizes (100 and 400 meshes) led to slightly higher enhancement of sludge dewaterability (69.1%–72%) than the larger size particles (20–40 meshes) with the reduction rate of CST by 64%. However, after the treatment, the recycle rate of larger size ZVI particles was obviously higher than the small sizes ZVI particles: 98.3% vs. 87.6–89.7%. Different surface areas of the ZVI particles with different sizes might contribute to the phenomenon. For the small ZVI particles with the sizes of 100 and 400 meshes, no obvious differences of oxidization effects and the improvements of sludge dewaterability were found between them, which might be because an oxide layer could have been formed on the surface of fine ZVI particles and led to agglomeration. According to the economical analysis, the small particles (100 and 400 meshes) of ZVI were more economically favorable for the oxidative conditioning process with ZVI-peroxydisulfate than large ZVI particles (20–40 meshes).
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherScience Press and Springer-Verlag GmbH
dc.relation.ispartofpagefrom2672
dc.relation.ispartofpageto2677
dc.relation.ispartofissue10
dc.relation.ispartofjournalKorean Journal of Chemical Engineering
dc.relation.ispartofvolume34
dc.subject.fieldofresearchChemical engineering
dc.subject.fieldofresearchChemical engineering not elsewhere classified
dc.subject.fieldofresearchMechanical engineering
dc.subject.fieldofresearchcode4004
dc.subject.fieldofresearchcode400499
dc.subject.fieldofresearchcode4017
dc.titleEffects of particle size of zero-valent iron (ZVI) on peroxydisulfate-ZVI enhanced sludge dewaterability
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorWang, Qilin


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