Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/99225
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dc.contributor.authorPaulauskas, Valdas-
dc.contributor.authorZaleckas, Ernestas-
dc.coverage.spatialBG-
dc.date.accessioned2019-06-25T20:52:06Z-
dc.date.available2019-06-25T20:52:06Z-
dc.date.issued2019-
dc.identifier.issn13130226-
dc.identifier.otherVDU02-000059848-
dc.identifier.urihttps://stumejournals.com/journals/mtm/2019/3/114-
dc.description.abstractComparable heavy metal extraction efficiency using different chelating aminopolycarboxylic acids was studied with sewage sludge as well as sludge-soil mixtures. EDDS and MGDA showed only slightly lower extraction efficiency in comparison with EDTA, at solution pH 6 and 25°C. Chemical fractions of HM in the sludge were determined using sequential extraction. According to their stability in the environment (in sulphide and residual fractions) the investigated heavy metals can be ranked as follows: Cr> Pb> Ni> Cd> Zn ≈ Cu. It was found out that methylglycinediacetic and S,S’-ethylenediaminedisuccinic acids had much better biological degradation properties than widely for metal complexation used ethylenediaminetetraacetic acid – EDTA. Possibility to utilize metal-contaminated extraction solution by chelant recovery with calcium hydrosilicate was also investigateden
dc.description.sponsorshipMiškų ir ekologijos fakultetas-
dc.description.sponsorshipProj. "Vilko ekologijos tyrimai"-
dc.description.sponsorshipVytauto Didžiojo universitetas-
dc.description.sponsorshipŽemės ūkio akademija-
dc.format.extentp. 114-117-
dc.language.isoen-
dc.relation.ispartofMachines. Technologies. Materials. Sofia : Scientific Technical Union of Mechanical Engineering "Industry 4.0", 2019, Vol. 13, iss. 3-
dc.subjectHeavy metalsen
dc.subjectSewage sludgeen
dc.subjectChelantsen
dc.subjectComplexationen
dc.subjectExtracionen
dc.subjectrecoveryen
dc.subject.otherAplinkos inžinerija / Environmental engineering (T004)-
dc.titleChelating extraction technology in removing and recovering heavy metals from municipal sludgeen
dc.typeStraipsnis kituose recenzuojamuose leidiniuose / Article in other peer-reviewed editions (S5)-
dcterms.bibliographicCitation7-
dc.date.updated2019-06-28T13:36Z-
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local.typeS-
item.grantfulltextopen-
item.fulltextWith Fulltext-
crisitem.author.deptŽemės ūkio akademija-
crisitem.author.deptŽemės ūkio akademija-
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications
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