Removal of chromium(III) by cation exchange resin, Indion 790 for tannery waste treatment

Sahu, S K and Meshram, Pratima and Pandey, B D and Kumar, Vinay and Mankhand, T R (2009) Removal of chromium(III) by cation exchange resin, Indion 790 for tannery waste treatment. Hydrometallurgy, 99 (3-4). pp. 170-174.

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Extraction of chromium(III) from a model solution and from a tannery waste solution was studied by ion exchange using Indion 790 resin which is a macro-porous strongly acidic cation exchange resin of sulfonated polystyrene group. The resin was found to be selective for the sorption of chromium(III) in the pH range 0.5–3.5 from a model solution containing 500 ppm Cr(III). Beyond pH 3.5 extraction of chromium(III) drastically decreased from 92% to 76%. Sorption of chromium(III) on Indion 790 followed the Freundlich isotherm with a high Freundlich constant value (Kf = 8.57) confirming strong chemical interaction of the metal ion with the resin. Desorption of chromium(III) from the loaded resin increased with the increase in concentration of eluant (5–20% H2SO4). With 20% sulfuric acid solution 89% Cr(III) was eluted in two stages. The bench scale results were also validated in continuous mode in a fixed bed column and for the recovery of chromium(III) from a tannery solution

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Chromium(III); Tannery effluent; Cation exchange; Indion 790 resin; Sulfonated styrene-DVB resin
Divisions:Metal Extraction and Forming
ID Code:128
Deposited On:15 Oct 2009 12:10
Last Modified:09 Feb 2012 10:42
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