Sea sediments contaminated with heavy metals: Metal speciation and removal

Savvides, C; Papadopoulos, A; Haralambous, KJ; Loizidou, M

dc.contributor.author	Savvides, C	en
dc.contributor.author	Papadopoulos, A	en
dc.contributor.author	Haralambous, KJ	en
dc.contributor.author	Loizidou, M	en
dc.date.accessioned	2014-03-01T02:41:07Z
dc.date.available	2014-03-01T02:41:07Z
dc.date.issued	1995	en
dc.identifier.issn	0273-1223	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30377
dc.subject	Metal extraction	en
dc.subject	Metal sediments	en
dc.subject	Metal speciation	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Environmental Sciences	en
dc.subject.classification	Water Resources	en
dc.subject.other	Chromium	en
dc.subject.other	Contamination	en
dc.subject.other	Copper	en
dc.subject.other	Decontamination	en
dc.subject.other	Heavy metals	en
dc.subject.other	Industrial wastes	en
dc.subject.other	Iron	en
dc.subject.other	Lead	en
dc.subject.other	Nickel	en
dc.subject.other	Outfalls	en
dc.subject.other	Sediments	en
dc.subject.other	Zinc	en
dc.subject.other	Acid solutions	en
dc.subject.other	Environmental problems	en
dc.subject.other	Metal sediments	en
dc.subject.other	Metal speciation	en
dc.subject.other	Sea sediments	en
dc.subject.other	Marine pollution	en
dc.subject.other	chromium	en
dc.subject.other	copper	en
dc.subject.other	heavy metal	en
dc.subject.other	iron	en
dc.subject.other	lead	en
dc.subject.other	nickel	en
dc.subject.other	zinc	en
dc.subject.other	conference paper	en
dc.subject.other	extraction	en
dc.subject.other	industrial waste	en
dc.subject.other	sea pollution	en
dc.subject.other	sediment	en
dc.subject.other	species differentiation	en
dc.subject.other	coastal environment	en
dc.subject.other	contamination	en
dc.subject.other	heavy metal	en
dc.subject.other	marine environment	en
dc.subject.other	speciation	en
dc.title	Sea sediments contaminated with heavy metals: Metal speciation and removal	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/0273-1223(96)00077-7	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0273-1223(96)00077-7	en
heal.language	English	en
heal.publicationDate	1995	en
heal.abstract	The contamination of sediments with heavy metals may lead to serious environmental problems and in some cases action has to take place for their decontamination. In this work, studies were performed on sediments near the outfall of domestic and industrial waste. The metals examined were Cu, Cr, Ni, Pb, Zn and Fe. Indeed high metal content was found in the sediments and the contamination factors were quite high, indicating the effect of the nearby discharge of effluents. The results of the application of a sequential extraction partitioning procedure indicated that an important part of the metal content is carried by the residual phase but also a significant percentage is found in the organic and reducible fractions, i.e. in potentially available fractions. Batch extraction experiments using acid solutions of various concentrations and different acid-sediment contact times were performed in order to remove heavy metals from the sediments. For most metals studied, a satisfactory percentage was extracted at low contact times.The contamination of sediments with heavy metals may lead to serious environmental problems and in some cases action has to take place for their decontamination. In this work, studies were performed on sediments near the outfall of domestic and industrial waste. The metals examined were Cu, Cr, Ni, Pb, Zn and Fe. Indeed, high metal content was found in the sediments and the contamination factors were quite high, indicating the effect of the nearby discharge of effluents. The results of the application of a sequential extraction partitioning procedure indicated that an important part of the metal content is carried by the residual phase but also a significant percentage is found in the organic and reducible fractions, i.e. in potentially available fractions. Batch extraction experiments using acid solutions of various concentrations and different acid-sediment contact times were performed in order to remove heavy metals from the sediments. For most metals studied, a satisfactory percentage was extracted at low contact times.	en
heal.publisher	Pergamon Press Inc, Tarrytown, NY, United States	en
heal.journalName	Water Science and Technology	en
dc.identifier.doi	10.1016/0273-1223(96)00077-7	en
dc.identifier.isi	ISI:A1995UC24000010	en
dc.identifier.volume	32	en
dc.identifier.issue	9-10	en
dc.identifier.spage	65	en
dc.identifier.epage	73	en