An evaluation of chromium and zinc biosorption by a sea weed (Sargassum sp.) under optimized conditions

A  Saravanan; V Brindha; R  Manimekalai  and Soundarajan Krishnan  nbsp

doi:10.17485/ijst/2009/v2i1.11

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An evaluation of chromium and zinc biosorption by a sea weed (Sargassum sp.) under optimized conditions

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2009/v2i1.11

Year: 2009, Volume: 2, Issue: 1, Pages: 1-4

Original Article

An evaluation of chromium and zinc biosorption by a sea weed (Sargassum sp.) under optimized conditions

A. Saravanan¹ , V.Brindha² , R. Manimekalai² and Soundarajan Krishnan¹

¹Department of Chemical Engineering, Sathyabama University, Chennai – 119, India.
²Department of Bioinformatics, Dr.MGR Janaki College, Chennai-28, India.

*Author for the correspondence:
Soundarajan Krishnan
Department of Chemical Engineering,
Sathyabama University, Chennai – 119, India

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Biosorption is a promising alternative method to treat industrial effluents, mainly because of its low cost and high metal binding capacity. In this work, Zinc and Chromium biosorption process by Sargassum sp. seaweed biomass was studied. The work considered the determination parameters of Zinc and Chromium sorption such as pH, temperature, agitation speed and biomass size. The optimum conditions were: pH3, temperature (303k) room temperature, biomass size 0.5mm and agitation speed 150rpm. The maximum uptake of Chromium and Zinc is 65% and 53% respectively. The kinetic study revealed that the adsorption of Chromium and zinc by Sargassum sp. fitted the Langmuir isotherm.

Keywords: Biosorption, chromium, zinc, heavy metal, Sargassum sp.