Simultaneous removal of metals Cu2+, Fe3+ and Cr3+ with anions SO42- and HPO42- using clinoptilolite

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	2014-03-01T01:53:12Z
dc.date.available	2014-03-01T01:53:12Z
dc.date.issued	2003	en
dc.identifier.issn	1387-1811	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/26887
dc.subject	clinoptilolite	en
dc.subject	heavy metals	en
dc.subject	ion exchange	en
dc.subject	anion complexes	en
dc.subject	adsorption	en
dc.subject.classification	Chemistry, Applied	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.classification	Nanoscience & Nanotechnology	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	ION-EXCHANGE	en
dc.subject.other	NATURAL CLINOPTILOLITE	en
dc.subject.other	COMPLEX-FORMATION	en
dc.subject.other	PB2+	en
dc.subject.other	SEDIMENTARY	en
dc.subject.other	KINETICS	en
dc.subject.other	ZEOLITES	en
dc.subject.other	SULFATE	en
dc.subject.other	CD2+	en
dc.subject.other	ACID	en
dc.title	Simultaneous removal of metals Cu2+, Fe3+ and Cr3+ with anions SO42- and HPO42- using clinoptilolite	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	In the present study the effect of SO42- and HPO42- on ion exchange of Cu2+, Fe3+ and Cr3+, on natural clinoptilolite is examined under normality of 0.01 N, temperature of 25 +/- 2 degreesC and pH 2-2.5 after four days of equilibration. It is observed that Cu2+ uptake is significantly decreased in the presence of HPO42- and SO42. The observed effect is less significant for Fe3+ and Cr3+ in the presence of SO42- and HPO42- respectively. This could possibly be due to the metal- anion complex formation and the nature and charges of the complex species present. Blank solutions show precipitation in the case of Fe3+/HPO42- solution, leading in complete removal of Fe3+ from solutions. Precipitation along with ion exchange is resulting in higher removal of Fe3+ from the solution than ion exchange or precipitation alone. Finally, anion co-removal is significant, reaching 80% for HPO42- ions. (C) 2003 Elsevier Inc. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	MICROPOROUS AND MESOPOROUS MATERIALS	en
dc.identifier.isi	ISI:000184324100015	en
dc.identifier.volume	61	en
dc.identifier.issue	1-3	en
dc.identifier.spage	167	en
dc.identifier.epage	171	en