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Article: Electrochemical oxidation of leachate pretreated in an upflow anaerobic sludge blanket reactor

TitleElectrochemical oxidation of leachate pretreated in an upflow anaerobic sludge blanket reactor
Authors
Issue Date2001
PublisherSelper Ltd. The Journal's web site is located at http://www.environtechnol.co.uk
Citation
Environmental Technology, 2001, v. 22 n. 4, p. 373-381 How to Cite?
AbstractThis study was conducted to develop a two-stage process for the treatment of Hong Kong leachate. The leachate, containing 4750 mg l-1 of chemical oxygen demand (COD) and 1310 mg l-1 of ammoniacal nitrogen (NH3-N), was first treated in a UASB (upflow anaerobic sludge blanket) reactor at 37°C. The process removed on average 66.1% of COD with 6.1 days of hydraulic retention time (HRT), corresponding to an organic loading rate of 0.78 g-COD (1-day)-1. The UASB effluent, which had an average pH of 8.9, COD of 1610 mg l-1 and NH3-N of 1480 mg 1-1, was then further treated by electrochemical oxidation in a batch reactor with recirculation. With the addition of 2000 mg l-1 of chloride (in the form of sodium chloride) and at a current density of 32.3 mA cm-2, 87% of COD and 100% of NH3-N were removed from the UASB effluent in six hours. The energy consumption was <55 kWh kg-COD-1. The final effluent contained no residual NH3-N and only 209 mg l-1 of COD.
Persistent Identifierhttp://hdl.handle.net/10722/150177
ISSN
2015 Impact Factor: 1.76
2015 SCImago Journal Rankings: 0.640
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, Pen_US
dc.contributor.authorLau, IWCen_US
dc.contributor.authorFang, HHPen_US
dc.date.accessioned2012-06-26T06:02:02Z-
dc.date.available2012-06-26T06:02:02Z-
dc.date.issued2001en_US
dc.identifier.citationEnvironmental Technology, 2001, v. 22 n. 4, p. 373-381en_US
dc.identifier.issn0959-3330en_US
dc.identifier.urihttp://hdl.handle.net/10722/150177-
dc.description.abstractThis study was conducted to develop a two-stage process for the treatment of Hong Kong leachate. The leachate, containing 4750 mg l-1 of chemical oxygen demand (COD) and 1310 mg l-1 of ammoniacal nitrogen (NH3-N), was first treated in a UASB (upflow anaerobic sludge blanket) reactor at 37°C. The process removed on average 66.1% of COD with 6.1 days of hydraulic retention time (HRT), corresponding to an organic loading rate of 0.78 g-COD (1-day)-1. The UASB effluent, which had an average pH of 8.9, COD of 1610 mg l-1 and NH3-N of 1480 mg 1-1, was then further treated by electrochemical oxidation in a batch reactor with recirculation. With the addition of 2000 mg l-1 of chloride (in the form of sodium chloride) and at a current density of 32.3 mA cm-2, 87% of COD and 100% of NH3-N were removed from the UASB effluent in six hours. The energy consumption was <55 kWh kg-COD-1. The final effluent contained no residual NH3-N and only 209 mg l-1 of COD.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.subject.meshElectrochemistryen_US
dc.subject.meshOxidation-Reductionen_US
dc.subject.meshOxygen - Chemistryen_US
dc.subject.meshRefuse Disposal - Methodsen_US
dc.subject.meshSewage - Chemistryen_US
dc.subject.meshWater Pollution - Prevention & Controlen_US
dc.titleElectrochemical oxidation of leachate pretreated 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.pmid11329800-
dc.identifier.scopuseid_2-s2.0-0035044136en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035044136&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume22en_US
dc.identifier.issue4en_US
dc.identifier.spage373en_US
dc.identifier.epage381en_US
dc.identifier.isiWOS:000168506200002-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridWang, P=7407616360en_US
dc.identifier.scopusauthoridLau, IWC=7006768100en_US
dc.identifier.scopusauthoridFang, HHP=7402542625en_US

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