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Article: Mesophilic acidification of gelatinaceous wastewater

TitleMesophilic acidification of gelatinaceous wastewater
Authors
Issue Date2002
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jbiotec
Citation
Journal Of Biotechnology, 2002, v. 93 n. 2, p. 99-108 How to Cite?
AbstractThe influence of hydraulic retention time (HRT) and gelatin concentration on the acidification of gelatinaceous wastewater in an upflow anaerobic reactor was investigated at pH 5.5 and 37°C. The degree of gelatin degradation increased with the HRT, from 84.1% at 4 h to 89.6% at 24 h, but decreased with the increase of the gelatin concentration in the influent from 65.2% at 2 g-COD 1-1 to 51.9% at 30 g-COD 1-1. The degradation of gelatin followed the Monod kinetics with a maximum rate of 1.10 g (g-VSS·d)-1 and a half-rate constant of 0.23 g 1-1. The overall production rate of VFA and alcohols decreased with HRT, from 0.33 g (g-VSS·d)-1 at 4 h to 0.15 g (g-VSS·d)-1 at 24 h, but increased with gelatin concentration in the influent, from 0.10 g (g-VSS·d)-1 at 4 g-COD 1-1 to 0.58 g (g-VSS·d)-1 at 30 g-COD 1-1. The key acidification products were acetate, propionate and butyrate, plus i-butyrate, valerate, i-valerate, caproate and ethanol in smaller quantities. Formate, methanol, propanol and butanol were found only in certain runs. Only 4.5-7.8% of COD in wastewater was converted to hydrogen and methane. The sludge yield was estimated as 0.320 ± 0.014 g-VSS (g-COD)-1. © 2002 Elsevier Science B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/70835
ISSN
2015 Impact Factor: 2.667
2015 SCImago Journal Rankings: 1.064
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFang, HHPen_HK
dc.contributor.authorYu, Hen_HK
dc.date.accessioned2010-09-06T06:26:32Z-
dc.date.available2010-09-06T06:26:32Z-
dc.date.issued2002en_HK
dc.identifier.citationJournal Of Biotechnology, 2002, v. 93 n. 2, p. 99-108en_HK
dc.identifier.issn0168-1656en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70835-
dc.description.abstractThe influence of hydraulic retention time (HRT) and gelatin concentration on the acidification of gelatinaceous wastewater in an upflow anaerobic reactor was investigated at pH 5.5 and 37°C. The degree of gelatin degradation increased with the HRT, from 84.1% at 4 h to 89.6% at 24 h, but decreased with the increase of the gelatin concentration in the influent from 65.2% at 2 g-COD 1-1 to 51.9% at 30 g-COD 1-1. The degradation of gelatin followed the Monod kinetics with a maximum rate of 1.10 g (g-VSS·d)-1 and a half-rate constant of 0.23 g 1-1. The overall production rate of VFA and alcohols decreased with HRT, from 0.33 g (g-VSS·d)-1 at 4 h to 0.15 g (g-VSS·d)-1 at 24 h, but increased with gelatin concentration in the influent, from 0.10 g (g-VSS·d)-1 at 4 g-COD 1-1 to 0.58 g (g-VSS·d)-1 at 30 g-COD 1-1. The key acidification products were acetate, propionate and butyrate, plus i-butyrate, valerate, i-valerate, caproate and ethanol in smaller quantities. Formate, methanol, propanol and butanol were found only in certain runs. Only 4.5-7.8% of COD in wastewater was converted to hydrogen and methane. The sludge yield was estimated as 0.320 ± 0.014 g-VSS (g-COD)-1. © 2002 Elsevier Science B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jbiotecen_HK
dc.relation.ispartofJournal of Biotechnologyen_HK
dc.rightsJournal of Biotechnology. Copyright © Elsevier BV.en_HK
dc.subject.meshAlcohols - analysis - chemistryen_HK
dc.subject.meshFatty Acids, Volatile - analysis - chemistryen_HK
dc.subject.meshGelatin - analysis - chemistryen_HK
dc.subject.meshHydrogen-Ion Concentrationen_HK
dc.subject.meshIndustrial Waste - analysisen_HK
dc.subject.meshKineticsen_HK
dc.subject.meshQuaternary Ammonium Compounds - chemistryen_HK
dc.subject.meshWater - chemistryen_HK
dc.titleMesophilic acidification of gelatinaceous wastewateren_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0168-1656&volume=93&spage=99 &epage= 108&date=2002&atitle=Mesophilic+acidification+of+gelatinaceous+wastewateren_HK
dc.identifier.emailFang, HHP:hrechef@hkucc.hku.hken_HK
dc.identifier.authorityFang, HHP=rp00115en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0168-1656(01)00397-2en_HK
dc.identifier.pmid11738717-
dc.identifier.scopuseid_2-s2.0-0037074726en_HK
dc.identifier.hkuros67257en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037074726&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume93en_HK
dc.identifier.issue2en_HK
dc.identifier.spage99en_HK
dc.identifier.epage108en_HK
dc.identifier.isiWOS:000173535800001-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridFang, HHP=7402542625en_HK
dc.identifier.scopusauthoridYu, H=13008678100en_HK

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