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Article: Identification of surfactants emerged in aerobic granulation

TitleIdentification of surfactants emerged in aerobic granulation
Authors
KeywordsAerobic granule
Filamentous microorganism
PEG
Surfactants
UPLC-MS-MS
Issue Date2011
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere
Citation
Chemosphere, 2011, v. 82 n. 4, p. 535-540 How to Cite?
AbstractIn this study, aerobic granules were cultivated in sequencing batch reactors with activated sludge as the seed. The reactors were operated for 12h per cycle with the organic loading rate (OLR) increasing in double stepwise from 0.5 to 4.0g COD L-1d-1. Within the 40 d running, black granules with regular and smooth morphology were cultivated, which had high wet density and high settling velocity. During the granulation process, foams emerged and disappeared in the reactor, coinciding with the proliferation of filamentous microorganisms in the granules, implying that surfactants might exist and play an important role in the granulation. Using ultra performance liquid chromatography-tandem mass spectrometry, the surfactants were identified as homologous compounds of polyethylene glycol (PEG) with molecular weights ranging mainly from 100 to 500Da. Their general formulas were proposed as HO-[CH2-CH2-O]n-H. The source of PEG still needs further investigation. © 2010 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/139035
ISSN
2015 Impact Factor: 3.698
2015 SCImago Journal Rankings: 1.536
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong GRFHKU 7195/06E
The University of Hong Kong
Funding Information:

Dr. Zhiping Wang wishes to thank Hong Kong GRF (HKU 7195/06E) to provide the research assistant fellowship. Mr. Bing Li wishes to thank The University of Hong Kong for the studentship.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorWang, Zen_HK
dc.contributor.authorLi, Ben_HK
dc.contributor.authorZhang, Ten_HK
dc.date.accessioned2011-09-23T05:44:29Z-
dc.date.available2011-09-23T05:44:29Z-
dc.date.issued2011en_HK
dc.identifier.citationChemosphere, 2011, v. 82 n. 4, p. 535-540en_HK
dc.identifier.issn0045-6535en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139035-
dc.description.abstractIn this study, aerobic granules were cultivated in sequencing batch reactors with activated sludge as the seed. The reactors were operated for 12h per cycle with the organic loading rate (OLR) increasing in double stepwise from 0.5 to 4.0g COD L-1d-1. Within the 40 d running, black granules with regular and smooth morphology were cultivated, which had high wet density and high settling velocity. During the granulation process, foams emerged and disappeared in the reactor, coinciding with the proliferation of filamentous microorganisms in the granules, implying that surfactants might exist and play an important role in the granulation. Using ultra performance liquid chromatography-tandem mass spectrometry, the surfactants were identified as homologous compounds of polyethylene glycol (PEG) with molecular weights ranging mainly from 100 to 500Da. Their general formulas were proposed as HO-[CH2-CH2-O]n-H. The source of PEG still needs further investigation. © 2010 Elsevier Ltd.en_HK
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphereen_HK
dc.relation.ispartofChemosphereen_HK
dc.subjectAerobic granuleen_HK
dc.subjectFilamentous microorganismen_HK
dc.subjectPEGen_HK
dc.subjectSurfactantsen_HK
dc.subjectUPLC-MS-MSen_HK
dc.subject.meshAerobiosis-
dc.subject.meshBioreactors-
dc.subject.meshChromatography, Liquid-
dc.subject.meshSurface-Active Agents - chemistry-
dc.subject.meshWaste Disposal, Fluid-
dc.titleIdentification of surfactants emerged in aerobic granulationen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0045-6535&volume=82&issue=4&spage=535&epage=540&date=2011&atitle=Identification+of+surfactants+emerged+in+aerobic+granulation-
dc.identifier.emailZhang, T:zhangt@hkucc.hku.hken_HK
dc.identifier.authorityZhang, T=rp00211en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.chemosphere.2010.10.058en_HK
dc.identifier.pmid21075417-
dc.identifier.scopuseid_2-s2.0-78650264116en_HK
dc.identifier.hkuros192700en_US
dc.identifier.hkuros207943-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-78650264116&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume82en_HK
dc.identifier.issue4en_HK
dc.identifier.spage535en_HK
dc.identifier.epage540en_HK
dc.identifier.isiWOS:000286788300008-
dc.publisher.placeUnited Kingdomen_HK
dc.relation.projectMicrobial diversity and characteristics of activated sludge treating Hong Kong's saline sewage-
dc.identifier.scopusauthoridWang, Z=36242805700en_HK
dc.identifier.scopusauthoridLi, B=36072426000en_HK
dc.identifier.scopusauthoridZhang, T=24470677400en_HK
dc.identifier.citeulike8267064-

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