Jangde, Vivek and Motghare, Kalyani and Siluvai Antony, Praveen (2016) Adsorption of Hexavalent Chromium using Levigated Alumina GRM-1909. International Journal of Science Technology & Engineering , 2 (11). pp. 442-447. ISSN 2349-784X

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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.

Item Type:	Article
Uncontrolled Keywords:	Adsorption; Chromium (VI); Levigated Alumina; Langmuir Isotherm; Freundlich Isotherm
Subjects:	Environmental Pollution Water Treatment
Divisions:	UNSPECIFIED
Depositing User:	Er Praveen Siluvai Antony
Date Deposited:	06 Mar 2017 07:57
Last Modified:	06 Mar 2017 07:58
URI:	http://neeri.csircentral.net/id/eprint/723

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