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Article: Yields of biomass and extracellular polymers in four anaerobic sludges

TitleYields of biomass and extracellular polymers in four anaerobic sludges
Authors
KeywordsAnaerobes
Carbohydrate
ECP
Protein
Yield
Issue Date1996
PublisherSelper Ltd. The Journal's web site is located at http://www.environtechnol.co.uk
Citation
Environmental Technology, 1996, v. 17 n. 3, p. 283-291 How to Cite?
AbstractExtracellular polymers (ECP) are responsible for the flocculation of activated sludge as well as the granulation of anaerobic sludge. In this study, the biomass and ECP yields of four anaerobic sludge were examined. The sludges were enriched by using acetate, propionate, butyrate and glucose, respectively, as the sole substrate. Throughout the enrichment process, which lasted up to 73 cycles, the sludge samples were analyzed for their volatile suspended solids (VSS) as well as ECP's protein (ECP(p)) and carbohydrate (ECP(c)) contents. Under steady-state condition, the net yields of biomass, ECP(p) and ECP(c) were measured for the conversion of each individual substrate to methane and carbon dioxide. Furthermore, the corresponding yields for the acetogenesis of propionate and butyrate, and the acidogenesis of glucose, were also estimated, based on the stoichiometry of the degradation reactions. Results show that acidogenesis of glucose produced more ECP(p) and ECP(c) than acetogenesis and methanogenesis. This explains the reported observations that carbohydrate-degrading sludge produced better granules than the acid-degrading sludge.
Persistent Identifierhttp://hdl.handle.net/10722/71407
ISSN
2015 Impact Factor: 1.76
2015 SCImago Journal Rankings: 0.640

 

DC FieldValueLanguage
dc.contributor.authorJia, XSen_HK
dc.contributor.authorFurumai, Hen_HK
dc.contributor.authorFang, HHPen_HK
dc.date.accessioned2010-09-06T06:31:43Z-
dc.date.available2010-09-06T06:31:43Z-
dc.date.issued1996en_HK
dc.identifier.citationEnvironmental Technology, 1996, v. 17 n. 3, p. 283-291en_HK
dc.identifier.issn0959-3330en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71407-
dc.description.abstractExtracellular polymers (ECP) are responsible for the flocculation of activated sludge as well as the granulation of anaerobic sludge. In this study, the biomass and ECP yields of four anaerobic sludge were examined. The sludges were enriched by using acetate, propionate, butyrate and glucose, respectively, as the sole substrate. Throughout the enrichment process, which lasted up to 73 cycles, the sludge samples were analyzed for their volatile suspended solids (VSS) as well as ECP's protein (ECP(p)) and carbohydrate (ECP(c)) contents. Under steady-state condition, the net yields of biomass, ECP(p) and ECP(c) were measured for the conversion of each individual substrate to methane and carbon dioxide. Furthermore, the corresponding yields for the acetogenesis of propionate and butyrate, and the acidogenesis of glucose, were also estimated, based on the stoichiometry of the degradation reactions. Results show that acidogenesis of glucose produced more ECP(p) and ECP(c) than acetogenesis and methanogenesis. This explains the reported observations that carbohydrate-degrading sludge produced better granules than the acid-degrading sludge.en_HK
dc.languageengen_HK
dc.publisherSelper Ltd. The Journal's web site is located at http://www.environtechnol.co.uken_HK
dc.relation.ispartofEnvironmental Technologyen_HK
dc.subjectAnaerobesen_HK
dc.subjectCarbohydrateen_HK
dc.subjectECPen_HK
dc.subjectProteinen_HK
dc.subjectYielden_HK
dc.titleYields of biomass and extracellular polymers in four anaerobic sludgesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0959-3330&volume=17&spage=283&epage=291&date=1996&atitle=Yields+of+biomass+and+extracellular+polymers+in+four+anaerobic+sludgesen_HK
dc.identifier.emailFang, HHP:hrechef@hkucc.hku.hken_HK
dc.identifier.authorityFang, HHP=rp00115en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0029945955en_HK
dc.identifier.hkuros13390en_HK
dc.identifier.volume17en_HK
dc.identifier.issue3en_HK
dc.identifier.spage283en_HK
dc.identifier.epage291en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridJia, XS=7201933791en_HK
dc.identifier.scopusauthoridFurumai, H=7003360137en_HK
dc.identifier.scopusauthoridFang, HHP=7402542625en_HK

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