File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Removal of high NO3-concentrations in saline water through autotrophic denitrification by the bacterium Thiobacillus denitrificans strain MP

TitleRemoval of high NO3-concentrations in saline water through autotrophic denitrification by the bacterium Thiobacillus denitrificans strain MP
Authors
Issue Date2004
PublisherI W A Publishing. The Journal's web site is located at http://www.iwapublishing.com/template.cfm?name=iwapwst
Citation
Water Science And Technology, 2004, v. 49 n. 5-6, p. 105-112 How to Cite?
AbstractAutotrophic denitrification by Thiobacillus denitrificans MP isolated from mangrove was investigated in both a sulphur-limestone column reactor and a fermenter. More than 97.5% of the nitrate (NO3 -) in the 250 mg NO3 --N/L strong influent was removed after 14.3 hours in the column reactor. Influent NO3 - was completely depleted in the lower part of the column as the hydraulic retention time increased and a slight pH drop was also observed along the reactor column due to the exhaustion of the buffering ability of the limestone. Trace amounts of oxygen present in the lower part of the reactor column resulted in the accumulation of nitrite and subsequent inhibition of further denitrification. The species composition of the bacterial community in the higher parts of the reactor column was morphologically more diverse than in the lower part. Denitrification by T. denitrificans MP reached an optimal level when the dissolved oxygen was maintained between 1.5-2% of saturation level in the automated fermenter. The stoichiometric ratios of ΔSO4 2- produced/ΔNO3 --N removed were 6.81 and 9.32 in the reactor column and fermenter, respectively. This study suggests that efficient removal of high NO3 - concentrations in water or wastewater can be achieved using autotrophic bacteria immobilized on surfaces of sulphur granules in the column system. © IWA Publishing 2004.
Persistent Identifierhttp://hdl.handle.net/10722/150317
ISSN
2014 Impact Factor: 1.106
2014 SCImago Journal Rankings: 0.541
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorGu, JDen_US
dc.contributor.authorQiu, Wen_US
dc.contributor.authorKoenig, Aen_US
dc.contributor.authorFan, Yen_US
dc.date.accessioned2012-06-26T06:03:16Z-
dc.date.available2012-06-26T06:03:16Z-
dc.date.issued2004en_US
dc.identifier.citationWater Science And Technology, 2004, v. 49 n. 5-6, p. 105-112en_US
dc.identifier.issn0273-1223en_US
dc.identifier.urihttp://hdl.handle.net/10722/150317-
dc.description.abstractAutotrophic denitrification by Thiobacillus denitrificans MP isolated from mangrove was investigated in both a sulphur-limestone column reactor and a fermenter. More than 97.5% of the nitrate (NO3 -) in the 250 mg NO3 --N/L strong influent was removed after 14.3 hours in the column reactor. Influent NO3 - was completely depleted in the lower part of the column as the hydraulic retention time increased and a slight pH drop was also observed along the reactor column due to the exhaustion of the buffering ability of the limestone. Trace amounts of oxygen present in the lower part of the reactor column resulted in the accumulation of nitrite and subsequent inhibition of further denitrification. The species composition of the bacterial community in the higher parts of the reactor column was morphologically more diverse than in the lower part. Denitrification by T. denitrificans MP reached an optimal level when the dissolved oxygen was maintained between 1.5-2% of saturation level in the automated fermenter. The stoichiometric ratios of ΔSO4 2- produced/ΔNO3 --N removed were 6.81 and 9.32 in the reactor column and fermenter, respectively. This study suggests that efficient removal of high NO3 - concentrations in water or wastewater can be achieved using autotrophic bacteria immobilized on surfaces of sulphur granules in the column system. © IWA Publishing 2004.en_US
dc.languageengen_US
dc.publisherI W A 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.subject.meshCalcium Carbonateen_US
dc.subject.meshFermentationen_US
dc.subject.meshNitrates - Metabolismen_US
dc.subject.meshNitrogen - Isolation & Purification - Metabolismen_US
dc.subject.meshOxygenen_US
dc.subject.meshSulfuren_US
dc.subject.meshThiobacillus - Physiologyen_US
dc.subject.meshWaste Disposal, Fluid - Methodsen_US
dc.subject.meshWater Movementsen_US
dc.subject.meshWater Purification - Methodsen_US
dc.titleRemoval of high NO3-concentrations in saline water through autotrophic denitrification by the bacterium Thiobacillus denitrificans strain MPen_US
dc.typeArticleen_US
dc.identifier.emailGu, JD:jdgu@hkucc.hku.hken_US
dc.identifier.emailKoenig, A:kalbert@hkucc.hku.hken_US
dc.identifier.authorityGu, JD=rp00701en_US
dc.identifier.authorityKoenig, A=rp00125en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid15137413en_US
dc.identifier.scopuseid_2-s2.0-2442547215en_US
dc.identifier.hkuros88322-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-2442547215&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume49en_US
dc.identifier.issue5-6en_US
dc.identifier.spage105en_US
dc.identifier.epage112en_US
dc.identifier.isiWOS:000221464200015-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridGu, JD=7403129601en_US
dc.identifier.scopusauthoridQiu, W=7202211475en_US
dc.identifier.scopusauthoridKoenig, A=7103178143en_US
dc.identifier.scopusauthoridFan, Y=20734044200en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats