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Conference Paper: Performance and granule characteristics of UASB process treating wastewater with hydrolyzed proteins

TitlePerformance and granule characteristics of UASB process treating wastewater with hydrolyzed proteins
Authors
KeywordsAnaerobic
Granules
Methanogenic Activity
Microbial Structure
Protein
Syntrophic Association
Uasb
Issue Date1994
PublisherI W A Publishing. The Journal's web site is located at http://www.iwapublishing.com/template.cfm?name=iwapwst
Citation
Water Science And Technology, 1994, v. 30 n. 8 pt 8, p. 55-63 How to Cite?
AbstractUASB process consistently removed 84% of COD in wastewater with hydrolyzed proteins for loading rates up to 32 g-COD/L/day, corresponding to a food-to-microorganism ratio of 0.81 g-COD/g-VSS/day, at 37°C and a hydraulic retention time of 9 hours. Of all the COD in the wastewater, about 74% was converted to methane, 16% was unhydrolyzed proteins which remained refractory to degradation, and 10% converted to biomass. The average sludge yield was 0.079 g-VSS/g-COD. There was no noticeable foaming and sludge flotation. The maximum specific methane production rate in the reactor was 0.60 g-methane-COD/g-VSS/day, which was comparable to the specific methanogenic activity (SMA) of 0.59 g-methane-COD/g-VSS/day observed by the serum vial test using hydrolyzed proteins as substrate. The SMA using acetate as substrate was 0.89 g-methane-COD/g-VSS/day, higher than those (0.39-0.59 g-methane-COD/g-VSS/day) using formate, propionate and butyrate, individually, as substrate. The granules did not have a layered structure nor a predominant type of bacteria. Instead, it had a densely packed structure with interwined bacteria of diverse morphologies with scattered microcolonies of Methanothrix, Methanosarcina, and juxtapositioned syntrophic associations.
Persistent Identifierhttp://hdl.handle.net/10722/152098
ISSN
2015 Impact Factor: 1.064
2015 SCImago Journal Rankings: 0.469

 

DC FieldValueLanguage
dc.contributor.authorFang, HHPen_US
dc.contributor.authorChui, HKen_US
dc.contributor.authorLi, YYen_US
dc.contributor.authorChen, Ten_US
dc.date.accessioned2012-06-26T06:35:11Z-
dc.date.available2012-06-26T06:35:11Z-
dc.date.issued1994en_US
dc.identifier.citationWater Science And Technology, 1994, v. 30 n. 8 pt 8, p. 55-63en_US
dc.identifier.issn0273-1223en_US
dc.identifier.urihttp://hdl.handle.net/10722/152098-
dc.description.abstractUASB process consistently removed 84% of COD in wastewater with hydrolyzed proteins for loading rates up to 32 g-COD/L/day, corresponding to a food-to-microorganism ratio of 0.81 g-COD/g-VSS/day, at 37°C and a hydraulic retention time of 9 hours. Of all the COD in the wastewater, about 74% was converted to methane, 16% was unhydrolyzed proteins which remained refractory to degradation, and 10% converted to biomass. The average sludge yield was 0.079 g-VSS/g-COD. There was no noticeable foaming and sludge flotation. The maximum specific methane production rate in the reactor was 0.60 g-methane-COD/g-VSS/day, which was comparable to the specific methanogenic activity (SMA) of 0.59 g-methane-COD/g-VSS/day observed by the serum vial test using hydrolyzed proteins as substrate. The SMA using acetate as substrate was 0.89 g-methane-COD/g-VSS/day, higher than those (0.39-0.59 g-methane-COD/g-VSS/day) using formate, propionate and butyrate, individually, as substrate. The granules did not have a layered structure nor a predominant type of bacteria. Instead, it had a densely packed structure with interwined bacteria of diverse morphologies with scattered microcolonies of Methanothrix, Methanosarcina, and juxtapositioned syntrophic associations.en_US
dc.languageengen_US
dc.publisherI W A Publishing. The Journal's web site is located at http://www.iwapublishing.com/template.cfm?name=iwapwsten_US
dc.relation.ispartofWater Science and Technologyen_US
dc.subjectAnaerobicen_US
dc.subjectGranulesen_US
dc.subjectMethanogenic Activityen_US
dc.subjectMicrobial Structureen_US
dc.subjectProteinen_US
dc.subjectSyntrophic Associationen_US
dc.subjectUasben_US
dc.titlePerformance and granule characteristics of UASB process treating wastewater with hydrolyzed proteinsen_US
dc.typeConference_Paperen_US
dc.identifier.emailFang, HHP:hrechef@hkucc.hku.hken_US
dc.identifier.authorityFang, HHP=rp00115en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0028612039en_US
dc.identifier.hkuros817-
dc.identifier.volume30en_US
dc.identifier.issue8 pt 8en_US
dc.identifier.spage55en_US
dc.identifier.epage63en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridFang, HHP=7402542625en_US
dc.identifier.scopusauthoridChui, HK=7006642070en_US
dc.identifier.scopusauthoridLi, YY=7502096327en_US
dc.identifier.scopusauthoridChen, T=25939365300en_US

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