alexa Biosorption of Arsenic by Living and Dried Biomass of Fresh Water Microalgae - Potentials and Equilibrium Studies
ISSN: 2155-6199

Journal of Bioremediation & Biodegradation
Open Access

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Research Article

Biosorption of Arsenic by Living and Dried Biomass of Fresh Water Microalgae - Potentials and Equilibrium Studies

Sibi G*
Department of Biotechnology, Indian Academy Degree College, Centre for Research and Post Graduate Studies, Bangalore, India
Corresponding Author : Sibi G
Indian Academy Centre for Research and Post Graduate Studies, India
Tel: +91-99864-52875
E-mail: [email protected]
Received May 23, 2014; Accepted September 01, 2014; Published September 03, 2014
Citation: Sibi G (2014) Biosorption of Arsenic by Living and Dried Biomass of Fresh Water Microalgae - Potentials and Equilibrium Studies. J Bioremed Biodeg 5:249. doi: 10.4172/2155-6199.1000249
Copyright: © 2014 Sibi G. This is an open-a ccess article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Biosorption of arsenic (III) and (V) from aqueous solutions by living and dried biomass of fresh water microalgae was investigated. A total of five microalgae namely Chlorella, Oscillatioria, Scenedesmus, Spirogyra and Pandorina were identified as arsenic tolerant and used for further studies. Varying conditions of pH, temperature, biomass and contact time were studied for As (III) and As (V) adsorption properties of living and dried biomass of microalgae. Significant biosorption of arsenic was found at pH 4, 32°C and 0.8 g/l levels. Both living and dried biomass were further studied for As (III) and (V) removal from the aqueous solutions containing 30 mg/l under the same experimental conditions. Removal rate of As (III) was higher than the As (V) by the microalgae under the experimental conditions and dried biomass showed higher biosorption rate and faster kinetic than the living ones.

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