Heavy metal uptake by natural zeolite and metals partitioning in sewage sludge compost

Zorpas, AA; Constantinides, T; Vlyssides, AG; Haralambous, I; Loizidou, M

dc.contributor.author	Zorpas, AA	en
dc.contributor.author	Constantinides, T	en
dc.contributor.author	Vlyssides, AG	en
dc.contributor.author	Haralambous, I	en
dc.contributor.author	Loizidou, M	en
dc.date.accessioned	2014-03-01T01:15:38Z
dc.date.available	2014-03-01T01:15:38Z
dc.date.issued	2000	en
dc.identifier.issn	0960-8524	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13637
dc.subject	sewage sludge composting	en
dc.subject	metal uptake	en
dc.subject	natural zeolite	en
dc.subject	clinoptilolite	en
dc.subject	metals partitioning	en
dc.subject.classification	Agricultural Engineering	en
dc.subject.classification	Biotechnology & Applied Microbiology	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	TRACE-METALS	en
dc.subject.other	FRACTIONATION	en
dc.subject.other	SPECIATION	en
dc.title	Heavy metal uptake by natural zeolite and metals partitioning in sewage sludge compost	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0960-8524(99)00110-8	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0960-8524(99)00110-8	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	A major limitation of land application of sewage sludge compost is the potential high heavy metal content due to the metal content of the original sludge. Zeolites may be useful as metal scavengers in metal-rich sludges. The natural zeolite, clinoptilolite has the ability to take up heavy metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn). The aim of the reported work was to determine the metal forms most readily taken up by a natural zeolite when used as a bulking material during the composting process. Using a sequential extraction procedure in the raw sludge and in the final products after 150 days of maturity, the heavy metal content was associated with five fractions; the exchangeable, the carbonate, the reducible, the organic and the residual. It was found that a significant percentage of the metals not taken up by the zeolite was associated with the residual fraction, which is considered an inert form. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	BIORESOURCE TECHNOLOGY	en
dc.identifier.doi	10.1016/S0960-8524(99)00110-8	en
dc.identifier.isi	ISI:000084360900003	en
dc.identifier.volume	72	en
dc.identifier.issue	2	en
dc.identifier.spage	113	en
dc.identifier.epage	119	en