Removal of Chromium(VI) by Natural Polymer Chitin and Deacetylated Chitin from Aqueous Media.
Corresponding Author(s) : V.S. SHRIVASTAVA
Asian Journal of Chemistry,
Vol. 16 No. 1 (2004): Vol 16 Issue 1
Abstract
Chitin and its deacetylated form has been used as adsorbent for
the removal of Cr(VI) in aqueous media. The effect of various
parameters influencing the Cr(VI) adsorption such as pH, initial
metal ion concentration and adsorbent dose has been studied. The
optimum pH for adsorption of Cr(Vl) on chitin and deacetylated
chitin was found to be 2.0 and 3.0 respectively. It has been found
that metal removal percentage increases with adsorbent dose. Increase
ininitial metal ion concentration decreases the percent removal
but the amount of Cr(VI) adsorbed per unit weight of
adsorbent increases. It has been also found thai deacetylated chitin
shows greater potential for removal of Cr(VI) as compared to chitin.
The data obtained from batch process was used to fit in Freundlich
and Langmuir adsorption model.
Keywords
Download Citation
Endnote/Zotero/Mendeley (RIS)BibTeX