Metal ion removal from water by sorption on paper mill sludge

  • Calace N
  • Nardi E
  • Petronio B
 et al. 
  • 20


    Mendeley users who have this article in their library.
  • 43


    Citations of this article.


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 HNO30.1 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.

Author-supplied keywords

  • Desorption
  • Metals
  • Paper mill sludge
  • Sorption

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free