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Article: Nitrate removal from saline water using autotrophic denitrification by the bacterium Thiobacillus denitrificans MP-1

TitleNitrate removal from saline water using autotrophic denitrification by the bacterium Thiobacillus denitrificans MP-1
Authors
KeywordsAutotrophic denitrification
Kinetics
Nitrate removal
Thiobacillus denitrificans MP-1
Issue Date2004
PublisherSelper Ltd. The Journal's web site is located at http://www.environtechnol.co.uk
Citation
Environmental Technology, 2004, v. 25 n. 10, p. 1201-1210 How to Cite?
AbstractAutotrophic denitrification of synthetic wastewater by Thiobacillus denitrificans MP-1 isolated from mangrove sediment was investigated in both up-flow packed-bed reactors and fermentor. More than 97.5% and 90% of the nitrate in inflow was removed after 8.8 and 161 hours at 250 and 195 mg 1-1 for the packed-bed reactor and fermentor system, respectively. The nitrate was quickly denitrified at very low flow rates (0.11 m h-1) for the packed-bed reactors, but as the flow rate was greater than 0.13 m 1-1, the nitrate removal rate increased as the flow rate increased. In the static fermentor system, the denitrification can be described by a secondary reaction, but at a flow rate between 1.31 to 1.49 m h-1, the reactor performance can be described using the zero-order reaction in the packed-bed reactor. As the speed increases, the zero-order reaction translates into half-order reaction as the penetration efficiency of nitrate decreases. The mass ratios between the nitrate removed and the sulfate produced were determined to be 6.81 and 9.32 in the reactor column and fermentor, respectively. The results of this study suggest that efficient removal of high concentrations of nitrate in water or wastewater can be achieved effectively using autotrophic bacteria immobilized on surfaces of sulphur granules in packed-bed reactor. © Selper Ltd, 2004.
Persistent Identifierhttp://hdl.handle.net/10722/150680
ISSN
2014 Impact Factor: 1.560
2014 SCImago Journal Rankings: 0.573
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhao, Zen_US
dc.contributor.authorQiu, Wen_US
dc.contributor.authorKoenig, Aen_US
dc.contributor.authorFan, Xen_US
dc.contributor.authorGu, JDen_US
dc.date.accessioned2012-06-26T06:06:44Z-
dc.date.available2012-06-26T06:06:44Z-
dc.date.issued2004en_US
dc.identifier.citationEnvironmental Technology, 2004, v. 25 n. 10, p. 1201-1210en_US
dc.identifier.issn0959-3330en_US
dc.identifier.urihttp://hdl.handle.net/10722/150680-
dc.description.abstractAutotrophic denitrification of synthetic wastewater by Thiobacillus denitrificans MP-1 isolated from mangrove sediment was investigated in both up-flow packed-bed reactors and fermentor. More than 97.5% and 90% of the nitrate in inflow was removed after 8.8 and 161 hours at 250 and 195 mg 1-1 for the packed-bed reactor and fermentor system, respectively. The nitrate was quickly denitrified at very low flow rates (0.11 m h-1) for the packed-bed reactors, but as the flow rate was greater than 0.13 m 1-1, the nitrate removal rate increased as the flow rate increased. In the static fermentor system, the denitrification can be described by a secondary reaction, but at a flow rate between 1.31 to 1.49 m h-1, the reactor performance can be described using the zero-order reaction in the packed-bed reactor. As the speed increases, the zero-order reaction translates into half-order reaction as the penetration efficiency of nitrate decreases. The mass ratios between the nitrate removed and the sulfate produced were determined to be 6.81 and 9.32 in the reactor column and fermentor, respectively. The results of this study suggest that efficient removal of high concentrations of nitrate in water or wastewater can be achieved effectively using autotrophic bacteria immobilized on surfaces of sulphur granules in packed-bed reactor. © Selper Ltd, 2004.en_US
dc.languageengen_US
dc.publisherSelper Ltd. The Journal's web site is located at http://www.environtechnol.co.uken_US
dc.relation.ispartofEnvironmental Technologyen_US
dc.subjectAutotrophic denitrification-
dc.subjectKinetics-
dc.subjectNitrate removal-
dc.subjectThiobacillus denitrificans MP-1-
dc.subject.meshBioreactorsen_US
dc.subject.meshNitrates - Isolation & Purificationen_US
dc.subject.meshSodium Chlorideen_US
dc.subject.meshThiobacillus - Physiologyen_US
dc.subject.meshWaste Disposal, Fluid - Methodsen_US
dc.subject.meshWater - Chemistryen_US
dc.subject.meshWater Movementsen_US
dc.titleNitrate removal from saline water using autotrophic denitrification by the bacterium Thiobacillus denitrificans MP-1en_US
dc.typeArticleen_US
dc.identifier.emailKoenig, A:kalbert@hkucc.hku.hken_US
dc.identifier.emailGu, JD:jdgu@hkucc.hku.hken_US
dc.identifier.authorityKoenig, A=rp00125en_US
dc.identifier.authorityGu, JD=rp00701en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid15551834en_US
dc.identifier.scopuseid_2-s2.0-9444257489en_US
dc.identifier.hkuros98024-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-9444257489&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume25en_US
dc.identifier.issue10en_US
dc.identifier.spage1201en_US
dc.identifier.epage1210en_US
dc.identifier.isiWOS:000225382900012-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridZhao, Z=7404148369en_US
dc.identifier.scopusauthoridQiu, W=7202211475en_US
dc.identifier.scopusauthoridKoenig, A=7103178143en_US
dc.identifier.scopusauthoridFan, X=7403393564en_US
dc.identifier.scopusauthoridGu, JD=7403129601en_US

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