Stabilization Pb, Zn, and Cd-contaminated soil by means of natural zeolite

Moirou, A; Xenidis, A; Paspaliaris, I

dc.contributor.author	Moirou, A	en
dc.contributor.author	Xenidis, A	en
dc.contributor.author	Paspaliaris, I	en
dc.date.accessioned	2014-03-01T01:17:08Z
dc.date.available	2014-03-01T01:17:08Z
dc.date.issued	2001	en
dc.identifier.issn	1522-6514	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14368
dc.subject	Contaminated soil	en
dc.subject	Heavy metals	en
dc.subject	Lead	en
dc.subject	Stabilization	en
dc.subject	Zeolite	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Cadmium	en
dc.subject.other	Contamination	en
dc.subject.other	Ion exchange	en
dc.subject.other	Leaching	en
dc.subject.other	Lead	en
dc.subject.other	Stabilization	en
dc.subject.other	Zeolites	en
dc.subject.other	Soil zeolite mixtures	en
dc.subject.other	Soil pollution	en
dc.title	Stabilization Pb, Zn, and Cd-contaminated soil by means of natural zeolite	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/20015891109248	en
heal.identifier.secondary	http://dx.doi.org/10.1080/20015891109248	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	This article aims to investigate the stabilization of Pb, Zn, and Cd contained in contaminated soil from a former mining site in Montevecchio, Sardinia, using clinoptiloliterich tuff from Pentalofos, Evros. The study included (1) batch experiments and their environmental characterization and (2) column experiments. The first tests involved 1-month pot experiments with varying soil-zeolite mixtures, and their evaluation was carried out by standard USEPA leaching tests (TCLP, EPT test, SPLP). Moderate solubility reductions were recorded according to the TCLP (Pb: 38%, Zn: 33%, and Cd: 32%) due to the introduction of competing Na ions in the solution, while the EPT test showed more significant variations (Pb: 55%, Zn: 74%, and Cd: 46%). A major decrease is achieved in both cases by 10% w/w zeolite addition. The study was complemented by column experiments involving soil-zeolite mixtures eluted by CH3COOH solutions (0.003N and 0.05N). The solubility of Pb was reduced by 50 to 60% compared with the control column, thus indicating the considerable selectivity of clinoptilolite for Pb. In addition, Na and Ca measurements in the leachates confirmed that the immobilization of Pb was mainly attributed to ion exchange reactions.	en
heal.publisher	CRC PRESS LLC	en
heal.journalName	Soil and Sediment Contamination	en
dc.identifier.doi	10.1080/20015891109248	en
dc.identifier.isi	ISI:000169117500001	en
dc.identifier.volume	10	en
dc.identifier.issue	3	en
dc.identifier.spage	251	en
dc.identifier.epage	267	en