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Article: EDTA-enhanced electrokinetic extraction of lead

TitleEDTA-enhanced electrokinetic extraction of lead
Authors
Issue Date1996
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/gt.html
Citation
Journal Of Geotechnical And Geoenvironmental Engineering, 1996, v. 122 n. 8, p. 666-673 How to Cite?
AbstractElectrokinetic extraction has been demonstrated to be effective in removing lead from pure Georgia kaolinite characterized by a low acid/base buffer capacity and cation exchange capacity. The relatively high removal efficiency is dependent on the low soil pH generated by the electrokinetic process. However, when impurities such as iron oxides are present, electrokinetics alone may not be effective in the extraction of lead due to the higher acid/base buffer capacity and cation exchange capacity of the soil. In this study, the effects of ethylenediaminetetraacetate (EDTA) on enhancing electrokinetic extraction of lead from a natural kaolinite containing approximately 4.3% iron oxides as Fe2O3 were examined. Interactions between lead and soil at different pH values were evaluated by batch tests. Results of the study show that approximately 90% of the lead spiked uniformly into the soil can be migrated toward the anode and accumulated within about 15% of soil for easier removal. ©ASCE.
Persistent Identifierhttp://hdl.handle.net/10722/150085
ISSN
2015 Impact Factor: 1.696
2015 SCImago Journal Rankings: 2.344
References

 

DC FieldValueLanguage
dc.contributor.authorYeung, ATen_US
dc.contributor.authorHsu, CNen_US
dc.contributor.authorMenon, RMen_US
dc.date.accessioned2012-06-26T06:01:27Z-
dc.date.available2012-06-26T06:01:27Z-
dc.date.issued1996en_US
dc.identifier.citationJournal Of Geotechnical And Geoenvironmental Engineering, 1996, v. 122 n. 8, p. 666-673en_US
dc.identifier.issn1090-0241en_US
dc.identifier.urihttp://hdl.handle.net/10722/150085-
dc.description.abstractElectrokinetic extraction has been demonstrated to be effective in removing lead from pure Georgia kaolinite characterized by a low acid/base buffer capacity and cation exchange capacity. The relatively high removal efficiency is dependent on the low soil pH generated by the electrokinetic process. However, when impurities such as iron oxides are present, electrokinetics alone may not be effective in the extraction of lead due to the higher acid/base buffer capacity and cation exchange capacity of the soil. In this study, the effects of ethylenediaminetetraacetate (EDTA) on enhancing electrokinetic extraction of lead from a natural kaolinite containing approximately 4.3% iron oxides as Fe2O3 were examined. Interactions between lead and soil at different pH values were evaluated by batch tests. Results of the study show that approximately 90% of the lead spiked uniformly into the soil can be migrated toward the anode and accumulated within about 15% of soil for easier removal. ©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/gt.htmlen_US
dc.relation.ispartofJournal of Geotechnical and Geoenvironmental Engineeringen_US
dc.titleEDTA-enhanced electrokinetic extraction of leaden_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.scopuseid_2-s2.0-0030317705en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030317705&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume122en_US
dc.identifier.issue8en_US
dc.identifier.spage666en_US
dc.identifier.epage673en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridYeung, AT=7102390361en_US
dc.identifier.scopusauthoridHsu, CN=7404947324en_US
dc.identifier.scopusauthoridMenon, RM=35610039900en_US

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