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Article: Removal of Pb2+ from aqueous solutions by a high-efficiency resin

TitleRemoval of Pb2+ from aqueous solutions by a high-efficiency resin
Authors
KeywordsIon-exchange
Pb2+
Kinetic
Equilibrium
Wastewater
Issue Date2013
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/apsusc
Citation
Applied Surface Science, 2013, v. 283, p. 660-667 How to Cite?
AbstractThe removal of Pb2+ from aqueous solution by 732 cation-exchange resin in sodium type (732-CR) has been studied in batch experiments at varying pH (2.0–8.0), Pb2+ concentration (50–200 mg/L), contact time (5–300 min), temperature (288–308 K) and resin dose (0.125–0.75 g/L). The experimental data show that the ion-exchange process was dependent on pH and temperature, the optimal exchange capacity was found at pH 4.0, and higher temperature was beneficial to lead sorption. Kinetic data indicate that the ion-exchange process followed a pseudo-first order model. The equilibrium exchange capacity could be reached at approximately 4 h, and the maximum sorption capacity of Pb2+ at pH 4.0 was 396.8 mg/g resin. The equilibrium data were evaluated with Langmuir and Freundlich model, and were best fitted with Langmuir model. The thermodynamic parameters for removal of Pb2+ indicate that the reaction was spontaneous and endothermic. Additionally, column tests were conducted by using both synthetic solution and effluents from lead battery industry. The regeneration of resin was performed for two sorption-regeneration cycles by 1 M NaOH, and the results show that effective regeneration was achieved by this method.
Persistent Identifierhttp://hdl.handle.net/10722/295586
ISSN
2019 Impact Factor: 6.182
2015 SCImago Journal Rankings: 0.930
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGuo, H-
dc.contributor.authorRen, Y-
dc.contributor.authorSun, X-
dc.contributor.authorXu, Y-
dc.contributor.authorLi, X-
dc.contributor.authorZhang, T-
dc.contributor.authorKang, J-
dc.contributor.authorLiu, D-
dc.date.accessioned2021-01-29T07:10:36Z-
dc.date.available2021-01-29T07:10:36Z-
dc.date.issued2013-
dc.identifier.citationApplied Surface Science, 2013, v. 283, p. 660-667-
dc.identifier.issn0169-4332-
dc.identifier.urihttp://hdl.handle.net/10722/295586-
dc.description.abstractThe removal of Pb2+ from aqueous solution by 732 cation-exchange resin in sodium type (732-CR) has been studied in batch experiments at varying pH (2.0–8.0), Pb2+ concentration (50–200 mg/L), contact time (5–300 min), temperature (288–308 K) and resin dose (0.125–0.75 g/L). The experimental data show that the ion-exchange process was dependent on pH and temperature, the optimal exchange capacity was found at pH 4.0, and higher temperature was beneficial to lead sorption. Kinetic data indicate that the ion-exchange process followed a pseudo-first order model. The equilibrium exchange capacity could be reached at approximately 4 h, and the maximum sorption capacity of Pb2+ at pH 4.0 was 396.8 mg/g resin. The equilibrium data were evaluated with Langmuir and Freundlich model, and were best fitted with Langmuir model. The thermodynamic parameters for removal of Pb2+ indicate that the reaction was spontaneous and endothermic. Additionally, column tests were conducted by using both synthetic solution and effluents from lead battery industry. The regeneration of resin was performed for two sorption-regeneration cycles by 1 M NaOH, and the results show that effective regeneration was achieved by this method.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/apsusc-
dc.relation.ispartofApplied Surface Science-
dc.subjectIon-exchange-
dc.subjectPb2+-
dc.subjectKinetic-
dc.subjectEquilibrium-
dc.subjectWastewater-
dc.titleRemoval of Pb2+ from aqueous solutions by a high-efficiency resin-
dc.typeArticle-
dc.identifier.emailGuo, H: guohao7@hku.hk-
dc.identifier.authorityGuo, H=rp02772-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.apsusc.2013.06.161-
dc.identifier.scopuseid_2-s2.0-84883165425-
dc.identifier.hkuros700003924-
dc.identifier.volume283-
dc.identifier.spage660-
dc.identifier.epage667-
dc.identifier.isiWOS:000323601700094-
dc.publisher.placeNetherlands-
dc.identifier.issnl0169-4332-

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