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Article: Degradation of phenol in wastewater in an upflow anaerobic sludge blanket reactor

TitleDegradation of phenol in wastewater in an upflow anaerobic sludge blanket reactor
Authors
KeywordsAnaerobic
Bioactivity
Granule
Loading
Microstructure
Phenol
Shock
Temperature
Uasb
Yield
Issue Date1996
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/watres
Citation
Water Research, 1996, v. 30 n. 6, p. 1353-1360 How to Cite?
AbstractPhenol in wastewater could be effectively degraded in an upflow anaerobic sludge blanket (UASB) reactor. With a 1:1 effluent recycle ratio, over 97% of phenol was removed at 37°C and pH 6.9-7.5 with 12 h of hydraulic retention time for phenol concentration up to 1260 mg.l-1, corresponding to 3000 mg.l-1 of chemical oxygen demand (GOD) and a loading rate of 6 g-COD l-1 day-1. The seed sludge took about 7 wk to develop the phenol-degrading capability which was sensitive to shocks. The bioactivity deteriorated readily when the granules were exposed to sudden changes of temperature and loading. Although the damage was not permanent, the recovery of bioactivity was gradual and lengthy. At 6 g-COD.l-1.day-1, each gram of granules was able to convert 0.49 g of COD into methane daily. On the average, about 94.7% of the total COD removed was converted to methane, while the rest was converted to biomass with a net yield of 0.038 g-VSS.(g-COD-removed)-1. Electron micrographs show that the granules were composed of, among others, Syntrophus buswellii-, Methanothrix-, Methanospirillum- and Methanobrevibacter-like bacteria. | Phenol in wastewater could be effectively degraded in an upflow anaerobic sludge blanket (UASB) reactor. With a 1:1 effluent recycle ratio, over 97% of phenol was removed at 37°C and pH 6.9-7.5 with 12 h of hydraulic retention time for phenol concentration up to 1260 mg·1-1, corresponding to 3000 mg·1-1 of chemical oxygen demand (COD) and a loading rate of 6 g-COD·1-1·day-1. The seed sludge took about 7 wk to develop the phenol-degrading capability which was sensitive to shocks. The bioactivity deteriorated readily when the granules were exposed to sudden changes of temperature and loading. Although the damage was not permanent, the recovery of bioactivity was gradual and lengthy. At 6 g-COD·1-1·day-1, each gram of granules was able to convert 0.49 g of COD into methane daily. On the average, about 94.7% of the total COD removed was converted to methane, while the rest was converted to biomass with a net yield of 0.038 g-VSS·(g-COD-removed)-1. Electron micrographs show that the granules were composed of, among others, Syntrophus buswellii-, Methanothrix-, Methanospirillum- and Methanobrevibacter-like bacteria.
Persistent Identifierhttp://hdl.handle.net/10722/150077
ISSN
2015 Impact Factor: 5.991
2015 SCImago Journal Rankings: 2.772
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFang, HHPen_US
dc.contributor.authorChen, Ten_US
dc.contributor.authorLi, YYen_US
dc.contributor.authorChui, HKen_US
dc.date.accessioned2012-06-26T06:01:25Z-
dc.date.available2012-06-26T06:01:25Z-
dc.date.issued1996en_US
dc.identifier.citationWater Research, 1996, v. 30 n. 6, p. 1353-1360en_US
dc.identifier.issn0043-1354en_US
dc.identifier.urihttp://hdl.handle.net/10722/150077-
dc.description.abstractPhenol in wastewater could be effectively degraded in an upflow anaerobic sludge blanket (UASB) reactor. With a 1:1 effluent recycle ratio, over 97% of phenol was removed at 37°C and pH 6.9-7.5 with 12 h of hydraulic retention time for phenol concentration up to 1260 mg.l-1, corresponding to 3000 mg.l-1 of chemical oxygen demand (GOD) and a loading rate of 6 g-COD l-1 day-1. The seed sludge took about 7 wk to develop the phenol-degrading capability which was sensitive to shocks. The bioactivity deteriorated readily when the granules were exposed to sudden changes of temperature and loading. Although the damage was not permanent, the recovery of bioactivity was gradual and lengthy. At 6 g-COD.l-1.day-1, each gram of granules was able to convert 0.49 g of COD into methane daily. On the average, about 94.7% of the total COD removed was converted to methane, while the rest was converted to biomass with a net yield of 0.038 g-VSS.(g-COD-removed)-1. Electron micrographs show that the granules were composed of, among others, Syntrophus buswellii-, Methanothrix-, Methanospirillum- and Methanobrevibacter-like bacteria. | Phenol in wastewater could be effectively degraded in an upflow anaerobic sludge blanket (UASB) reactor. With a 1:1 effluent recycle ratio, over 97% of phenol was removed at 37°C and pH 6.9-7.5 with 12 h of hydraulic retention time for phenol concentration up to 1260 mg·1-1, corresponding to 3000 mg·1-1 of chemical oxygen demand (COD) and a loading rate of 6 g-COD·1-1·day-1. The seed sludge took about 7 wk to develop the phenol-degrading capability which was sensitive to shocks. The bioactivity deteriorated readily when the granules were exposed to sudden changes of temperature and loading. Although the damage was not permanent, the recovery of bioactivity was gradual and lengthy. At 6 g-COD·1-1·day-1, each gram of granules was able to convert 0.49 g of COD into methane daily. On the average, about 94.7% of the total COD removed was converted to methane, while the rest was converted to biomass with a net yield of 0.038 g-VSS·(g-COD-removed)-1. Electron micrographs show that the granules were composed of, among others, Syntrophus buswellii-, Methanothrix-, Methanospirillum- and Methanobrevibacter-like bacteria.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/watresen_US
dc.relation.ispartofWater Researchen_US
dc.subjectAnaerobicen_US
dc.subjectBioactivityen_US
dc.subjectGranuleen_US
dc.subjectLoadingen_US
dc.subjectMicrostructureen_US
dc.subjectPhenolen_US
dc.subjectShocken_US
dc.subjectTemperatureen_US
dc.subjectUasben_US
dc.subjectYielden_US
dc.titleDegradation of phenol in wastewater in an upflow anaerobic sludge blanket reactoren_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.doi10.1016/0043-1354(95)00309-6en_US
dc.identifier.scopuseid_2-s2.0-0030175494en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030175494&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume30en_US
dc.identifier.issue6en_US
dc.identifier.spage1353en_US
dc.identifier.epage1360en_US
dc.identifier.isiWOS:A1996UP85300006-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridFang, HHP=7402542625en_US
dc.identifier.scopusauthoridChen, T=25939365300en_US
dc.identifier.scopusauthoridLi, YY=7502096327en_US
dc.identifier.scopusauthoridChui, HK=7006642070en_US

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