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Article: Studies on the preparation of immobilized-cell membrane and its characteristics

TitleStudies on the preparation of immobilized-cell membrane and its characteristics
Authors
KeywordsBiodenitrification
Diffusion
Immobilization
Membrane Bioreactor
Issue Date2001
Citation
Zhongguo Huanjing Kexue/China Environmental Science, 2001, v. 21 n. 3, p. 207-211 How to Cite?
AbstractThe nitrifying bacteria and denitrifying bacteria were coimmobilized with polyvinyl alcohol (PVA) and the immobilized-cell membrane was prepared by circulatory freezing and thawing method. The effects of the carrier concentration and the number of times of freezing-thawing on the membrane strength, the diffusion coefficient of substrate in the membrane, and the activity of the immobilized-cell were investigated. At the same time, a new bioreactor for biodenitrification and matched with the immobilized-cell membrane was designed, and the operational stability of the immobilized-cell membrane was investigated. The results showed that the PVA membrane prepared at PVA concentration of 13%(w/w) and 15%(w/w), and the freezing-thawing number of times of about 5 possessed higher strength and activity of the immobilized-cell was also higher. When the freezing-thawing number of times and PVA concentration were 5 and 15%(w/w) respectively, the maximum tensile stress and the diffusion coefficient of ammonia nitrogen in PVA membrane were 1.52MPa and 0.75 × 10 -9 m 2/s respectively. The immobilized-cell membrane remained stable both in its form and cell activity for a period of 2 months operation.
Persistent Identifierhttp://hdl.handle.net/10722/150200
ISSN
2015 SCImago Journal Rankings: 0.185

 

DC FieldValueLanguage
dc.contributor.authorCao, Gen_US
dc.contributor.authorZhao, Qen_US
dc.contributor.authorSun, Xen_US
dc.contributor.authorZhang, Ten_US
dc.date.accessioned2012-06-26T06:02:10Z-
dc.date.available2012-06-26T06:02:10Z-
dc.date.issued2001en_US
dc.identifier.citationZhongguo Huanjing Kexue/China Environmental Science, 2001, v. 21 n. 3, p. 207-211en_US
dc.identifier.issn1000-6923en_US
dc.identifier.urihttp://hdl.handle.net/10722/150200-
dc.description.abstractThe nitrifying bacteria and denitrifying bacteria were coimmobilized with polyvinyl alcohol (PVA) and the immobilized-cell membrane was prepared by circulatory freezing and thawing method. The effects of the carrier concentration and the number of times of freezing-thawing on the membrane strength, the diffusion coefficient of substrate in the membrane, and the activity of the immobilized-cell were investigated. At the same time, a new bioreactor for biodenitrification and matched with the immobilized-cell membrane was designed, and the operational stability of the immobilized-cell membrane was investigated. The results showed that the PVA membrane prepared at PVA concentration of 13%(w/w) and 15%(w/w), and the freezing-thawing number of times of about 5 possessed higher strength and activity of the immobilized-cell was also higher. When the freezing-thawing number of times and PVA concentration were 5 and 15%(w/w) respectively, the maximum tensile stress and the diffusion coefficient of ammonia nitrogen in PVA membrane were 1.52MPa and 0.75 × 10 -9 m 2/s respectively. The immobilized-cell membrane remained stable both in its form and cell activity for a period of 2 months operation.en_US
dc.languageengen_US
dc.relation.ispartofZhongguo Huanjing Kexue/China Environmental Scienceen_US
dc.subjectBiodenitrificationen_US
dc.subjectDiffusionen_US
dc.subjectImmobilizationen_US
dc.subjectMembrane Bioreactoren_US
dc.titleStudies on the preparation of immobilized-cell membrane and its characteristicsen_US
dc.typeArticleen_US
dc.identifier.emailZhang, T:zhangt@hkucc.hku.hken_US
dc.identifier.authorityZhang, T=rp00211en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0035918851en_US
dc.identifier.volume21en_US
dc.identifier.issue3en_US
dc.identifier.spage207en_US
dc.identifier.epage211en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridCao, G=7401710002en_US
dc.identifier.scopusauthoridZhao, Q=7402763797en_US
dc.identifier.scopusauthoridSun, X=7405626508en_US
dc.identifier.scopusauthoridZhang, T=24470677400en_US

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