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Article: Electrokinetic remediation of cadmium-contaminated clay

TitleElectrokinetic remediation of cadmium-contaminated clay
Authors
KeywordsCadmium
Electrokinetics
Fine-Grained Soils
Laboratory Investigation
Soil Treatment
Sorption
Issue Date2005
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/ee.html
Citation
Journal Of Environmental Engineering, 2005, v. 131 n. 2, p. 298-304 How to Cite?
AbstractElectrokinetic extraction has been demonstrated to be very effective in removing heavy metals from Georgia kaolinite. The relatively high removal efficiency depends on the extremely acidic soil environment generated by the electrokinetic process. However, the efficiency observed in Georgia kaolinite cannot be achieved in soils of high acid/base buffer capacity without enhancement. In this study, the effect of ethylenediaminetetraacetic acid (EDTA) to enhance electrokinetic extraction of cadmium from Milwhite kaolinite was examined. The influence of electro-osmotic flow direction on the migration of cadmium, EDTA, and their complexes were also investigated. It was observed that injection of EDTA from the cathode reservoir by a reverse electro-osmotic flow could mobilize the cadmium in the specimen effectively. A less significant mobilization of cadmium was observed when the electro-osmotic flow was directed toward the cathode. However, accumulation of cadmium near the anode was observed regardless of the electro-osmotic flow direction. © ASCE.
Persistent Identifierhttp://hdl.handle.net/10722/150269
ISSN
2015 Impact Factor: 1.125
2015 SCImago Journal Rankings: 0.462
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYeung, ATen_US
dc.contributor.authorHsu, CNen_US
dc.date.accessioned2012-06-26T06:02:54Z-
dc.date.available2012-06-26T06:02:54Z-
dc.date.issued2005en_US
dc.identifier.citationJournal Of Environmental Engineering, 2005, v. 131 n. 2, p. 298-304en_US
dc.identifier.issn0733-9372en_US
dc.identifier.urihttp://hdl.handle.net/10722/150269-
dc.description.abstractElectrokinetic extraction has been demonstrated to be very effective in removing heavy metals from Georgia kaolinite. The relatively high removal efficiency depends on the extremely acidic soil environment generated by the electrokinetic process. However, the efficiency observed in Georgia kaolinite cannot be achieved in soils of high acid/base buffer capacity without enhancement. In this study, the effect of ethylenediaminetetraacetic acid (EDTA) to enhance electrokinetic extraction of cadmium from Milwhite kaolinite was examined. The influence of electro-osmotic flow direction on the migration of cadmium, EDTA, and their complexes were also investigated. It was observed that injection of EDTA from the cathode reservoir by a reverse electro-osmotic flow could mobilize the cadmium in the specimen effectively. A less significant mobilization of cadmium was observed when the electro-osmotic flow was directed toward the cathode. However, accumulation of cadmium near the anode was observed regardless of the electro-osmotic flow direction. © ASCE.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/ee.htmlen_US
dc.relation.ispartofJournal of Environmental Engineeringen_US
dc.subjectCadmiumen_US
dc.subjectElectrokineticsen_US
dc.subjectFine-Grained Soilsen_US
dc.subjectLaboratory Investigationen_US
dc.subjectSoil Treatmenten_US
dc.subjectSorptionen_US
dc.titleElectrokinetic remediation of cadmium-contaminated clayen_US
dc.typeArticleen_US
dc.identifier.emailYeung, AT:yeungat@hkucc.hku.hken_US
dc.identifier.authorityYeung, AT=rp00203en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1061/(ASCE)0733-9372(2005)131:2(298)en_US
dc.identifier.scopuseid_2-s2.0-13244277700en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-13244277700&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume131en_US
dc.identifier.issue2en_US
dc.identifier.spage298en_US
dc.identifier.epage304en_US
dc.identifier.isiWOS:000226388200015-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridYeung, AT=7102390361en_US
dc.identifier.scopusauthoridHsu, CN=7404947324en_US

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