The effect of competitive cations and anions on ion exchange of heavy metals

Inglezakis, VJ; Zorpas, AA; Loizidou, MD; Grigoropoulou, HP

dc.contributor.author	Inglezakis, VJ	en
dc.contributor.author	Zorpas, AA	en
dc.contributor.author	Loizidou, MD	en
dc.contributor.author	Grigoropoulou, HP	en
dc.date.accessioned	2014-03-01T01:23:10Z
dc.date.available	2014-03-01T01:23:10Z
dc.date.issued	2005	en
dc.identifier.issn	1383-5866	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16851
dc.subject	Anion complexes	en
dc.subject	Clinoptilolite	en
dc.subject	Competitive cations	en
dc.subject	Heavy metals	en
dc.subject	Ion exchange	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Ammonia	en
dc.subject.other	Heavy metals	en
dc.subject.other	Negative ions	en
dc.subject.other	Positive ions	en
dc.subject.other	Reduction	en
dc.subject.other	Anion complexes	en
dc.subject.other	Clinoptilolite	en
dc.subject.other	Competitive cations	en
dc.subject.other	Negative effect	en
dc.subject.other	Ion exchange	en
dc.title	The effect of competitive cations and anions on ion exchange of heavy metals	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.seppur.2005.05.008	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.seppur.2005.05.008	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	In the present study, the effects of competitive cations NH 4+, K+, Ca2+, Na+, Mg2+ and Li+ and co-anions Cl- and Br - on ion exchange of heavy metals Pb2+, Fe3+, Cr3+ and Cu2+ on clinoptilolite is examined. The presence of cations and anions in the solutions of heavy metals is reducing the removal of the latter and the order of decreasing negative effect is the following: NH4+ > Mg2+ > Ca2+ > Na+ > K+ > Li+ and Br- > Cl- for Pb2+, NH4+ > K + > Ca2+ > Na+, Mg2+ ≈ Li+ and Br- > Cl- for Cr3+, NH4+ > K+ > Na+ > Ca 2+ > Li+ > Mg2+ and Cl- > Br- for Fe3+ and Ca2+ > NH4+ > Li+ > K+ > Na+ > Mg2+ and Cl- > Br- for Cu2+. In all cases, the selectivity of clinoptilolite for heavy metals is the following: Pb2+ > Fe3+ > Cr3+ ≥ Cu2+. © 2005 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Separation and Purification Technology	en
dc.identifier.doi	10.1016/j.seppur.2005.05.008	en
dc.identifier.isi	ISI:000233398100008	en
dc.identifier.volume	46	en
dc.identifier.issue	3	en
dc.identifier.spage	202	en
dc.identifier.epage	207	en