| Title | Metal ion removal from water by sorption on paper mill sludge |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2003 |
| Authors | Calace, N., Nardi Elisa, Petronio B.M., Pietroletti M., and Tosti G. |
| Journal | Chemosphere |
| Volume | 51 |
| Pagination | 797-803 |
| ISSN | 00456535 |
| Keywords | acidity, 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 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0037409451&doi=10.1016%2fS0045-6535%2802%2900864-0&partnerID=40&md5=af53872efa1915afe28910d0a39109c9 |
| DOI | 10.1016/S0045-6535(02)00864-0 |
| Citation Key | Calace2003797 |
