Effect of acid treatment on the removal of heavy metals from sewage sludge

Stylianou, MA; Kollia, D; Haralambous, K-J; Inglezakis, VJ; Moustakas, KG; Loizidou, MD

dc.contributor.author	Stylianou, MA	en
dc.contributor.author	Kollia, D	en
dc.contributor.author	Haralambous, K-J	en
dc.contributor.author	Inglezakis, VJ	en
dc.contributor.author	Moustakas, KG	en
dc.contributor.author	Loizidou, MD	en
dc.date.accessioned	2014-03-01T01:26:11Z
dc.date.available	2014-03-01T01:26:11Z
dc.date.issued	2007	en
dc.identifier.issn	0011-9164	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17961
dc.subject	Acid treatment	en
dc.subject	Heavy metals	en
dc.subject	Sequential extraction	en
dc.subject	Sludge	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Water Resources	en
dc.subject.other	Extraction	en
dc.subject.other	Heavy metals	en
dc.subject.other	Sulfuric acid	en
dc.subject.other	Wastewater treatment	en
dc.subject.other	Acid treatment	en
dc.subject.other	Heavy metal partitioning	en
dc.subject.other	Sequential extraction	en
dc.subject.other	Sewage sludge	en
dc.subject.other	Extraction	en
dc.subject.other	Heavy metals	en
dc.subject.other	Sewage sludge	en
dc.subject.other	Sulfuric acid	en
dc.subject.other	Wastewater treatment	en
dc.subject.other	acid water	en
dc.subject.other	concentration (composition)	en
dc.subject.other	efficiency measurement	en
dc.subject.other	extraction method	en
dc.subject.other	heavy metal	en
dc.subject.other	partitioning	en
dc.subject.other	sequestration (chemistry)	en
dc.subject.other	sewage treatment	en
dc.subject.other	sludge	en
dc.subject.other	wastewater	en
dc.subject.other	Athens [Attica]	en
dc.subject.other	Attica	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Psittalia	en
dc.subject.other	Southern Europe	en
dc.title	Effect of acid treatment on the removal of heavy metals from sewage sludge	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.desal.2006.11.015	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.desal.2006.11.015	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	In this paper, sludge samples that were collected from the municipal wastewater treatment plant in Psittalia (Athens, Greece) were subjected to acid treatment using sulphuric acid. Furthermore, a sequential extraction scheme was applied in order to determine the chemical forms of Ni, Cu, total Cr, Pb and Zn in sewage sludge. The optimum combination was achieved through a variety of tests by applying a ratio of 1:5 of sludge quantity (g) per volume of acid (mL). The concentration of the acid used was in the range of 10-20% at two different temperatures (25-80°C) and the contact times ranged from 1 to 60 min. The optimum combination was achieved when the sludge samples were in contact with H2SO4 (20%) for 30 min at 80°C, as these experimental conditions resulted in the highest heavy metal removal efficiency. In addition, the metal distribution in the residue was investigated and the heavy metal partitioning was found to be different after acid treatment. © 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Desalination	en
dc.identifier.doi	10.1016/j.desal.2006.11.015	en
dc.identifier.isi	ISI:000250040800009	en
dc.identifier.volume	215	en
dc.identifier.issue	1-3	en
dc.identifier.spage	73	en
dc.identifier.epage	81	en