Paper Title:
Romoval of Zinc Ion from Aqueous Solution by Adsorption onto Solidifying Landfilled Sludge
  Abstract

In this paper, the removal behaviour of Zn2+ from aqueous solution by adsorption onto solidifying landfilled sludge and its mechanism were studied. The results showed that Zn2+ adsorption capacity reached optimum when initial pH was 3.0. When initial Zn2+ concentration was150mg/L, the removal efficiency could reach more than 90% with dosage of solidifying landfilled sludge being 6g/L. Moreover, the adsorption isotherm could conform to Freundlich equations best. The desorption ratio for adsorbed Zn2+ reached above 90% by HCl solution with pH value being 1.0, however, it was only about 10% despite of EDTA concentration. FTIR analysis showed that main site for Zn2+ adsorption onto solidifying landfilled sludge was Me-O group from metal oxide and hydroxyl group from fatty alcohol.

  Info
Periodical
Advanced Materials Research (Volumes 343-344)
Chapter
Session 1: Materials for Environmental Protection and Energy Application
Edited by
David Wang
Pages
62-66
DOI
10.4028/www.scientific.net/AMR.343-344.62
Citation
W. Q. Zhu, Z. Zhang, J. L. Shan, "Romoval of Zinc Ion from Aqueous Solution by Adsorption onto Solidifying Landfilled Sludge", Advanced Materials Research, Vols. 343-344, pp. 62-66, 2012
Online since
September 2011
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Price
$32.00
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