Heavy metals leachability before, during and after composting of sewage sludge with natural clinoptilolite

Zorpas, AA

dc.contributor.author	Zorpas, AA	en
dc.date.accessioned	2014-03-01T01:30:50Z
dc.date.available	2014-03-01T01:30:50Z
dc.date.issued	2009	en
dc.identifier.issn	1944-3994	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19642
dc.subject	Clinoptilolite	en
dc.subject	Metal leachability	en
dc.subject	Metals uptake	en
dc.subject	Natural zeolite	en
dc.subject	Sewage sludge composting	en
dc.subject.other	PLANT	en
dc.subject.other	SOILS	en
dc.title	Heavy metals leachability before, during and after composting of sewage sludge with natural clinoptilolite	en
heal.type	journalArticle	en
heal.identifier.primary	10.5004/dwt.2009.785	en
heal.identifier.secondary	http://dx.doi.org/10.5004/dwt.2009.785	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Environmental problems associated with sewage sludge disposal have prompted strict legislative actions over the past years. At the same time, the upgrading and expansion of wastewater treat- ment plants have greatly increased the volume of sludge generated. The major limitation of land application of sewage sludge compost is the potential high heavy metal content in relation to the metal content of the original sludge. Composting of sewage sludge with natural zeolite (clinopti- lolite) can enhance its quality and suitability for agricultural use. The aim of the article is to exam- ine the leachability of the heavy metals before, during and after the composting process of sewage sludge and clinoptilolite. The natural zeolite, clinoptilolite has the ability to uptake heavy metals in satisfactory levels. In order to estimate the metal leach ability of the final product of compost, the generalized acid neutralization capacity (GANC) procedure was used, and was found that by increasing the leachate pH, the heavy metal concentration decreases.	en
heal.publisher	DESALINATION PUBL	en
heal.journalName	Desalination and Water Treatment	en
dc.identifier.doi	10.5004/dwt.2009.785	en
dc.identifier.isi	ISI:000269935400030	en
dc.identifier.volume	8	en
dc.identifier.issue	1-3	en
dc.identifier.spage	256	en
dc.identifier.epage	262	en