Please use this identifier to cite or link to this item: http://nopr.niscpr.res.in/handle/123456789/22902
Title: Adsorption of Cr (VI) onto Wollastonite: Effect of pH
Authors: Sharma, Y C
Issue Date: May-2001
Publisher: NISCAIR-CSIR, India
Abstract: Wollastonite, a clay mineral has been investigated for the adsorption of Cr(VI). Adsorption of chromium was studied as a function of pH and 2.0,5.0,6.0 and 8.0 pH were selected for studies. Maximum adsorption was found (74.4%) at pH 2.0, temperature 30oC, 0.5×10-4M Cr(VI) concentration, 0.01 M NaClO4 ionic strength and 100 rpm of agitation speed. It was, however, minimum (12.3%), at pH 8.0. Equilibrium time of adsorption was independent of pH values. Different possible explanations have been discussed for removal or Cr(VI) for the present system. Kinetics of the removal of Cr(VI) at various pH values has been discussed and rate constant of the adsorption has been determined.
Page(s): 186-190
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.08(3) [May 2001]

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