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Article: Interactions of methanogens and denitrifiers in degradation of phenols

TitleInteractions of methanogens and denitrifiers in degradation of phenols
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. 1, p. 57-63 How to Cite?
AbstractExperiments were conducted at 37°C in an upflow anaerobic sludge blanket reactor treating waste-water containing phenol (200 mg/L), m-cresol (100 mg/L), and nitrate at various concentrations. Results show that anaerobic sludge was able to conduct denitrification without much acclimation. Denitrifiers outcompeted methanogens for substrates for carbon and electron supplies. They were able to use phenol and m-cresol as substrate without a carbohydrate cosubstrate. Denitrifying 1 g of NO3 --N required 3.34 g of chemical oxygen demand. Methanogenesis occurred only at chemical oxygen demand/NO3 --N ratios greater than 3.34. At the ratio of 5.23, over 98% of phenol but only 60% of m-cresol were degraded jointly by denitrifiers and methanogens with 1 day of hydraulic retention. At ratios less than 3.34, methanogenesis ceased to take place and denitrification became incomplete because of insufficient supply of substrate. Batch tests further confirmed that degradation of m-cresol was enhanced not only by the presence of nitrate, but also by the presence of either sucrose or phenol as cosubstrate.
Persistent Identifierhttp://hdl.handle.net/10722/70979
ISSN
2015 Impact Factor: 1.125
2015 SCImago Journal Rankings: 0.462
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFang, HHPen_HK
dc.contributor.authorZhou, GMen_HK
dc.date.accessioned2010-09-06T06:27:49Z-
dc.date.available2010-09-06T06:27:49Z-
dc.date.issued1999en_HK
dc.identifier.citationJournal Of Environmental Engineering, 1999, v. 125 n. 1, p. 57-63en_HK
dc.identifier.issn0733-9372en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70979-
dc.description.abstractExperiments were conducted at 37°C in an upflow anaerobic sludge blanket reactor treating waste-water containing phenol (200 mg/L), m-cresol (100 mg/L), and nitrate at various concentrations. Results show that anaerobic sludge was able to conduct denitrification without much acclimation. Denitrifiers outcompeted methanogens for substrates for carbon and electron supplies. They were able to use phenol and m-cresol as substrate without a carbohydrate cosubstrate. Denitrifying 1 g of NO3 --N required 3.34 g of chemical oxygen demand. Methanogenesis occurred only at chemical oxygen demand/NO3 --N ratios greater than 3.34. At the ratio of 5.23, over 98% of phenol but only 60% of m-cresol were degraded jointly by denitrifiers and methanogens with 1 day of hydraulic retention. At ratios less than 3.34, methanogenesis ceased to take place and denitrification became incomplete because of insufficient supply of substrate. Batch tests further confirmed that degradation of m-cresol was enhanced not only by the presence of nitrate, but also by the presence of either sucrose or phenol as cosubstrate.en_HK
dc.languageengen_HK
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/ee.htmlen_HK
dc.relation.ispartofJournal of Environmental Engineeringen_HK
dc.rightsJournal of Environmental Engineering. Copyright © American Society of Civil Engineers.en_HK
dc.titleInteractions of methanogens and denitrifiers in degradation of phenolsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0733-9372&volume=125 &issue=1&spage=57 &epage= 63&date=1999&atitle=Interactions+of+methanogens+and+denitrifiers+in+degradation+of+phenolsen_HK
dc.identifier.emailFang, HHP:hrechef@hkucc.hku.hken_HK
dc.identifier.authorityFang, HHP=rp00115en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1061/(ASCE)0733-9372(1999)125:1(57)en_HK
dc.identifier.scopuseid_2-s2.0-0032955741en_HK
dc.identifier.hkuros41851en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032955741&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume125en_HK
dc.identifier.issue1en_HK
dc.identifier.spage57en_HK
dc.identifier.epage63en_HK
dc.identifier.isiWOS:000077483000008-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridFang, HHP=7402542625en_HK
dc.identifier.scopusauthoridZhou, GM=7403686274en_HK

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