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Metal ion removal from water by sorption on paper mill sludge

TitleMetal ion removal from water by sorption on paper mill sludge
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2003
AuthorsCalace, N., Nardi Elisa, Petronio B.M., Pietroletti M., and Tosti G.
JournalChemosphere
Volume51
Pagination797-803
ISSN00456535
Keywordsacidity, article, binding affinity, Cadmium, chloride, Copper, copper ion, Desorption, Fluid, Heavy, industrial sludge, industrial waste, Ions, Lead, liquid-solid separation, metal extraction, Metal ion removal, Metals, molecular biology, Nitric acid, Paper, Paper industry, pH, pH effects, Refuse Disposal, Sewage sludge, silver, Sorption, Waste disposal, Wastewater treatment, Water, Water Pollutants, Water Purification
Abstract

Chromatographic columns packed with paper mill sludge are employed for metal ion recovery from water. The breakthrough curves show that cadmium, copper, lead and silver are removed from acid solutions (pH 2, 4); the affinity series is Pb(II) > Cu(II) > Ag(I) > Cd(II). Both the amount of metal retained and the metal-matrix interaction are pH dependent; the sorptive capacity increases with increasing pH. When the metals are present together at the same initial concentrations a competition among the different ions occurs although the affinity order remains unchanged. In metal recovery from the paper mill sludge column, the total amount of the cadmium and copper is displaced by HCl 1.0 M, 65% of the lead by HCl 0.1 M and 75% of the silver by HNO3 0.1 M. More than 95% of copper and lead and less than 20% of cadmium were recovered with HCl 0.1 M when the metals were present at the same time. © 2003 Elsevier Science Ltd. All rights reserved.

Notes

cited By 40

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0037409451&doi=10.1016%2fS0045-6535%2802%2900864-0&partnerID=40&md5=af53872efa1915afe28910d0a39109c9
DOI10.1016/S0045-6535(02)00864-0
Citation KeyCalace2003797