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Article: Effects of fractal structure on settling velocities of flocs

TitleEffects of fractal structure on settling velocities of flocs
Authors
Issue Date2009
Publisher科學出版社. The Journal's web site is located at http://hjkx.periodicals.net.cn/default.html
Citation
Huanjing Kexue/Environmental Science, 2009, v. 30 n. 8, p. 2353-2357 How to Cite?
AbstractFractal structures of kaolin and humic flcos by the mass-size method based on the microbalance and free-settling method based on particle image velocimetry technique were investigated. The results showed that kaolin and humic flocs were characterized by fractal structure. The three-dimensional fractal dimensions of Fe flocs with more compact structure ranged from 2.14 to 2.28 are larger than those of alum flocs ranged from 1.75 to 1.83 by the mass-size method. The fractal dimensions of humic flocs are smaller than those of kaolin flocs. The fractal dimension has a close relationship with the settling velocity of flocs. The larger the fractal dimension, the higher the settling velocity. The fractal dimensions by the mass-size method are in good agreement with those by the free-settling method. The measured settling velocities of fractal aggregates do not follow with Stokes' law.
Persistent Identifierhttp://hdl.handle.net/10722/150508
ISSN
2015 SCImago Journal Rankings: 0.153
References

 

DC FieldValueLanguage
dc.contributor.authorZhong, RSen_US
dc.contributor.authorZhang, XHen_US
dc.contributor.authorXiao, Fen_US
dc.contributor.authorLi, XYen_US
dc.date.accessioned2012-06-26T06:05:17Z-
dc.date.available2012-06-26T06:05:17Z-
dc.date.issued2009en_US
dc.identifier.citationHuanjing Kexue/Environmental Science, 2009, v. 30 n. 8, p. 2353-2357en_US
dc.identifier.issn0250-3301en_US
dc.identifier.urihttp://hdl.handle.net/10722/150508-
dc.description.abstractFractal structures of kaolin and humic flcos by the mass-size method based on the microbalance and free-settling method based on particle image velocimetry technique were investigated. The results showed that kaolin and humic flocs were characterized by fractal structure. The three-dimensional fractal dimensions of Fe flocs with more compact structure ranged from 2.14 to 2.28 are larger than those of alum flocs ranged from 1.75 to 1.83 by the mass-size method. The fractal dimensions of humic flocs are smaller than those of kaolin flocs. The fractal dimension has a close relationship with the settling velocity of flocs. The larger the fractal dimension, the higher the settling velocity. The fractal dimensions by the mass-size method are in good agreement with those by the free-settling method. The measured settling velocities of fractal aggregates do not follow with Stokes' law.en_US
dc.languageengen_US
dc.publisher科學出版社. The Journal's web site is located at http://hjkx.periodicals.net.cn/default.htmlzh_HK
dc.relation.ispartofHuanjing Kexue/Environmental Scienceen_US
dc.subject.meshFlocculationen_US
dc.subject.meshFractalsen_US
dc.subject.meshFractional Precipitationen_US
dc.subject.meshHumic Substancesen_US
dc.subject.meshKaolinen_US
dc.subject.meshParticle Sizeen_US
dc.subject.meshSurface Propertiesen_US
dc.subject.meshWaste Disposal, Fluid - Methodsen_US
dc.subject.meshWater Purification - Methodsen_US
dc.titleEffects of fractal structure on settling velocities of flocsen_US
dc.typeArticleen_US
dc.identifier.emailLi, XY:xlia@hkucc.hku.hken_US
dc.identifier.authorityLi, XY=rp00222en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid19799300-
dc.identifier.scopuseid_2-s2.0-69349103665en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-69349103665&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume30en_US
dc.identifier.issue8en_US
dc.identifier.spage2353en_US
dc.identifier.epage2357en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridZhong, RS=24170418700en_US
dc.identifier.scopusauthoridZhang, XH=9634633800en_US
dc.identifier.scopusauthoridXiao, F=7201709645en_US
dc.identifier.scopusauthoridLi, XY=26642887900en_US

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