Effects of thermal and acid treatment on the distribution of heavy metals in sewage sludge

Naoum, C; Zorpas, A; Savvides, C; Haralambous, KJ; Loizidou, M

dc.contributor.author	Naoum, C	en
dc.contributor.author	Zorpas, A	en
dc.contributor.author	Savvides, C	en
dc.contributor.author	Haralambous, KJ	en
dc.contributor.author	Loizidou, M	en
dc.date.accessioned	2014-03-01T01:13:43Z
dc.date.available	2014-03-01T01:13:43Z
dc.date.issued	1998	en
dc.identifier.issn	1093-4529	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12676
dc.subject	Acid treatment	en
dc.subject	Anaerobically treated sludge	en
dc.subject	Heavy metals	en
dc.subject	Metal mobilization	en
dc.subject	Sequential chemical extraction	en
dc.subject	Thermal treatment	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Sequential chemical extraction	en
dc.subject.other	Acids	en
dc.subject.other	Chromium	en
dc.subject.other	Copper	en
dc.subject.other	Drying	en
dc.subject.other	Extraction	en
dc.subject.other	Heat treatment	en
dc.subject.other	Iron	en
dc.subject.other	Lead	en
dc.subject.other	Nickel	en
dc.subject.other	Wastewater treatment	en
dc.subject.other	Zinc	en
dc.subject.other	Sewage sludge	en
dc.subject.other	chromium	en
dc.subject.other	copper	en
dc.subject.other	heavy metal	en
dc.subject.other	lead	en
dc.subject.other	nickel	en
dc.subject.other	phosphorus	en
dc.subject.other	zinc	en
dc.subject.other	acidification	en
dc.subject.other	article	en
dc.subject.other	atomic absorption spectrometry	en
dc.subject.other	biotransformation	en
dc.subject.other	desiccation	en
dc.subject.other	distribution volume	en
dc.subject.other	extraction	en
dc.subject.other	Greece	en
dc.subject.other	heating	en
dc.subject.other	pH	en
dc.subject.other	sewage disposal	en
dc.subject.other	sewage treatment	en
dc.subject.other	sludge	en
dc.subject.other	total organic carbon	en
dc.subject.other	waste water treatment plant	en
dc.subject.other	water content	en
dc.title	Effects of thermal and acid treatment on the distribution of heavy metals in sewage sludge	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/10934529809376815	en
heal.identifier.secondary	http://dx.doi.org/10.1080/10934529809376815	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	Anaerobically treated sludge from a wastewater treatment plant (Psittalia) was found to contain significant amounts of metals (Cr, Cu, Fe, Ni, Pb and Zn). The sludge samples were subjected to thermal drying at 105 degrees C and acid treatment was applied before and after thermal drying. Different acid concentrations and contact times were used in order to find the combination that caused the highest metal removal. The metal distribution in raw sewage and in thermally dried sludge as well as the chemical forms of the remaining metal load after acid treatment were determined by the application of a sequential chemical extraction procedure. It was found that thermal drying causes a shift of the metal content to more stable phases. A sufficient metal amount was removed by acid treatment and the remaining metal content was further stabilized.	en
heal.publisher	MARCEL DEKKER INC	en
heal.journalName	Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering	en
dc.identifier.doi	10.1080/10934529809376815	en
dc.identifier.isi	ISI:000077247000013	en
dc.identifier.volume	33	en
dc.identifier.issue	8	en
dc.identifier.spage	1741	en
dc.identifier.epage	1751	en