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Article: Fermentative hydrogen production in packed-bed and packing-free upflow reactors

TitleFermentative hydrogen production in packed-bed and packing-free upflow reactors
Authors
Issue Date2006
PublisherIWA Publishing. The Journal's web site is located at http://www.iwapublishing.com/template.cfm?name=iwapwst
Citation
Water Science and Technology, 2006, v. 54 n. 9, p. 95-103 How to Cite?
AbstractFermentative hydrogen production from a synthetic wastewater containing 10 g/L of sucrose was studied in two upflow reactors at 26°C for 400 days. One reactor was filled with packing rings (RP) and the other was packing free (RF). The effect of hydraulic retention time (HRT) from 2 h to 24 h was investigated. Results showed that, under steady state, the hydrogen production rate significantly increased from 0.63 L/L/d to 5.35 L/L/d in the RF when HRT decreased from 24 h to 2 h; the corresponding rates were 0.56 L/L/d to 6.17 L/L/d for the RP. In the RF, the hydrogen yield increased from 0.96 mol/mol-sucrose at 24 h of HRT to the maximum of 1.10 mol/mol-sucrose at 8 h of HRT, and then decreased to 0.68 mol/ mol-sucrose at 2 h. In the RP, the yield increased from 0.86 mol/ mol-sucrose at 24 h of HRT to the maximum of 1.22 mol/mol-sucrose at 14 h of HRT, and then decreased to 0.78 mol/mol-sucrose at 2 h. Overall, the reactor with packing was more effective than the one free of packing. In both reactors, sludge agglutinated into granules. The microbial community of granular sludge in RP was investigated using 168 rDNA based techniques. The distribution of bacterial cells and extracellular polysaccharides in hydrogen-producing granules was investigated by fluorescence-based techniques. Results indicated that most of the N-acetyl-galactosamine/galactose-containing extracellular polysaccharides were distributed on the outer layer of the granules with a filamentous structure. © IWA Publishing 2006.
Persistent Identifierhttp://hdl.handle.net/10722/150386
ISSN
2015 Impact Factor: 1.064
2015 SCImago Journal Rankings: 0.469
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Cen_US
dc.contributor.authorZhang, Ten_US
dc.contributor.authorFang, HHPen_US
dc.date.accessioned2012-06-26T06:04:10Z-
dc.date.available2012-06-26T06:04:10Z-
dc.date.issued2006en_US
dc.identifier.citationWater Science and Technology, 2006, v. 54 n. 9, p. 95-103en_US
dc.identifier.issn0273-1223en_US
dc.identifier.urihttp://hdl.handle.net/10722/150386-
dc.description.abstractFermentative hydrogen production from a synthetic wastewater containing 10 g/L of sucrose was studied in two upflow reactors at 26°C for 400 days. One reactor was filled with packing rings (RP) and the other was packing free (RF). The effect of hydraulic retention time (HRT) from 2 h to 24 h was investigated. Results showed that, under steady state, the hydrogen production rate significantly increased from 0.63 L/L/d to 5.35 L/L/d in the RF when HRT decreased from 24 h to 2 h; the corresponding rates were 0.56 L/L/d to 6.17 L/L/d for the RP. In the RF, the hydrogen yield increased from 0.96 mol/mol-sucrose at 24 h of HRT to the maximum of 1.10 mol/mol-sucrose at 8 h of HRT, and then decreased to 0.68 mol/ mol-sucrose at 2 h. In the RP, the yield increased from 0.86 mol/ mol-sucrose at 24 h of HRT to the maximum of 1.22 mol/mol-sucrose at 14 h of HRT, and then decreased to 0.78 mol/mol-sucrose at 2 h. Overall, the reactor with packing was more effective than the one free of packing. In both reactors, sludge agglutinated into granules. The microbial community of granular sludge in RP was investigated using 168 rDNA based techniques. The distribution of bacterial cells and extracellular polysaccharides in hydrogen-producing granules was investigated by fluorescence-based techniques. Results indicated that most of the N-acetyl-galactosamine/galactose-containing extracellular polysaccharides were distributed on the outer layer of the granules with a filamentous structure. © IWA Publishing 2006.en_US
dc.languageengen_US
dc.publisherIWA 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.rightsWater Science and Technology. Copyright © IWA Publishing.-
dc.subject.meshBioreactors - Classificationen_US
dc.subject.meshExtracellular Matrix - Metabolismen_US
dc.subject.meshFermentationen_US
dc.subject.meshFluorescein-5-Isothiocyanateen_US
dc.subject.meshHydrogen - Metabolismen_US
dc.subject.meshPolysaccharides - Metabolismen_US
dc.subject.meshRna, Ribosomal, 16S - Geneticsen_US
dc.subject.meshSewage - Chemistry - Microbiologyen_US
dc.subject.meshTemperatureen_US
dc.subject.meshTime Factorsen_US
dc.subject.meshWaste Disposal, Fluid - Methodsen_US
dc.titleFermentative hydrogen production in packed-bed and packing-free upflow reactorsen_US
dc.typeArticleen_US
dc.identifier.emailZhang, T: zhangt@hkucc.hku.hken_US
dc.identifier.emailFang, HHP: hrechef@hkucc.hku.hken_US
dc.identifier.authorityZhang, T=rp00211en_US
dc.identifier.authorityFang, HHP=rp00115en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.doi10.2166/wst.2006.712en_US
dc.identifier.pmid17163047-
dc.identifier.scopuseid_2-s2.0-33845911510en_US
dc.identifier.hkuros182627-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33845911510&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume54en_US
dc.identifier.issue9en_US
dc.identifier.spage95en_US
dc.identifier.epage103en_US
dc.identifier.isiWOS:000242677500013-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLi, C=12804810200en_US
dc.identifier.scopusauthoridZhang, T=24470677400en_US
dc.identifier.scopusauthoridFang, HHP=7402542625en_US

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