Adsorption of Hexavalent chromium using levigated alumina GRM-1909
Author(s):
Vivek Jangde , CSIR-National Environmental Engineering Research Institute, Nagpur, India; Kalyani Motghare, Jawaharlal Darda Institute of Engineering and Technology, Yavatmal, India; Praveen Siluvai Antony, CSIR-National Environmental Engineering Research Institute, Nagpur, India
Keywords:
Adsorption, Chromium (VI), Levigated alumina, Langmuir isotherm and Freundlich isotherm
Abstract:
Use of commercially available levigated alumina GRM-1909 for adsorption of Hexavalent chromium is investigated. In this study, the adsorption of Cr(VI) was carried out in a batch mode and rate of adsorption was evaluated at varying conditions viz. pH, adsorbent dose, initial concentration and contact time. The maximum removal of Cr(VI) (98%) was observed at pH 4 with an adsorbent dose 1 gm/100 ml and chromium concentration of 10 mg/l. The adsorption study revealed that pH and adsorbent dose play significant roles towards Cr(VI) adsorption. Langmuir and Freundlich adsorption isotherm models were applied. The Langmuir isotherm fitted the equilibrium adsorption data better with a correlation coefficient of R2 = 0.971. The present study reveals that the commercially available levigated alumina can be an ideal candidate for the removal of chromium (VI) metal ions from waste water.
Other Details:
| Manuscript Id | : | IJSTEV2I11201
|
| Published in | : | Volume : 2, Issue : 11
|
| Publication Date | : | 01/06/2016
|
| Page(s) | : | 442-447
|
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