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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
KeywordsAmmoniacal-nitrogen
Chloride
Electrochemical-oxidation
Leachate
UASB
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
2023 Impact Factor: 2.2
2023 SCImago Journal Rankings: 0.540
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.subjectAmmoniacal-nitrogen-
dc.subjectChloride-
dc.subjectElectrochemical-oxidation-
dc.subjectLeachate-
dc.subjectUASB-
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.doi10.1080/09593332208618266-
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
dc.identifier.issnl0959-3330-

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