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Article: Methanogenci characteristics of formate-utilizing sludge

TitleMethanogenci characteristics of formate-utilizing sludge
Authors
Issue Date1999
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/ee.html
Citation
Journal Of Environmental Engineering, 1999, v. 125 n. 7, p. 596-601 How to Cite?
AbstractThe formate-utilizing sludge was first enriched in a chemostat reactor for over 90 days; at steady state, the sludge yield averaged 0.066 mg volatile suspended solids (VSS)/mg chemical oxygen demand (COD). The methanoger.ic characteristics of this sludge were then investigated in three series of batch experiments at 37C using formate, acetate, and H2/CO2, individually, as substrates. At pH 6.4-8.0, the formate-degrading rate averaged 0.76 mg/mg VSS/h (6.35 mg COD/mg VSS/d). At pH 3.0, the sludge completely lost its bioactivity, and required a lengthy recovery period to regain a fraction of its bioactivity after the pH was adjusted to pH 7.1. The sludge was also able to utilize H2/CO2 as substrate at an average rate of 0.0167 mg H2/mg VSS/h (3.21 mg COD/mg VSS/d). At pH < 8.0, the sludge degraded acetate at a very low rate of 3.0 (xg/mg μSS/h (0.077 mg COD/mg VSS/d). The sludge exhibited a slight homoacetogenic activity at pH S.O using formate as substrate; the homoacetogenic reaction using H2/CO2 as substrate was thermodynarnieally infeasible, according to chemical free energy analysis. © ASCE, APPENDIX.
Persistent Identifierhttp://hdl.handle.net/10722/150124
ISSN
2015 Impact Factor: 1.125
2015 SCImago Journal Rankings: 0.462
References

 

DC FieldValueLanguage
dc.contributor.authorJia, XSen_US
dc.contributor.authorFang, HHPen_US
dc.date.accessioned2012-06-26T06:01:42Z-
dc.date.available2012-06-26T06:01:42Z-
dc.date.issued1999en_US
dc.identifier.citationJournal Of Environmental Engineering, 1999, v. 125 n. 7, p. 596-601en_US
dc.identifier.issn0733-9372en_US
dc.identifier.urihttp://hdl.handle.net/10722/150124-
dc.description.abstractThe formate-utilizing sludge was first enriched in a chemostat reactor for over 90 days; at steady state, the sludge yield averaged 0.066 mg volatile suspended solids (VSS)/mg chemical oxygen demand (COD). The methanoger.ic characteristics of this sludge were then investigated in three series of batch experiments at 37C using formate, acetate, and H2/CO2, individually, as substrates. At pH 6.4-8.0, the formate-degrading rate averaged 0.76 mg/mg VSS/h (6.35 mg COD/mg VSS/d). At pH 3.0, the sludge completely lost its bioactivity, and required a lengthy recovery period to regain a fraction of its bioactivity after the pH was adjusted to pH 7.1. The sludge was also able to utilize H2/CO2 as substrate at an average rate of 0.0167 mg H2/mg VSS/h (3.21 mg COD/mg VSS/d). At pH < 8.0, the sludge degraded acetate at a very low rate of 3.0 (xg/mg μSS/h (0.077 mg COD/mg VSS/d). The sludge exhibited a slight homoacetogenic activity at pH S.O using formate as substrate; the homoacetogenic reaction using H2/CO2 as substrate was thermodynarnieally infeasible, according to chemical free energy analysis. © ASCE, APPENDIX.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/ee.htmlen_US
dc.relation.ispartofJournal of Environmental Engineeringen_US
dc.titleMethanogenci characteristics of formate-utilizing sludgeen_US
dc.typeArticleen_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-s2.0-0032853626en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032853626&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume125en_US
dc.identifier.issue7en_US
dc.identifier.spage596en_US
dc.identifier.epage601en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridJia, XS=7201933791en_US
dc.identifier.scopusauthoridFang, HHP=7402542625en_US

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