alexa Studies on Biosorption of Chromium Ions from Wastewater Using Biomass of Aspergillus niger Species
ISSN: 2155-6199

Journal of Bioremediation & Biodegradation
Open Access

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Research Article

Studies on Biosorption of Chromium Ions from Wastewater Using Biomass of Aspergillus niger Species

Korrapati Narasimhulu1* and Y. Pydi Setty2
1Department of Biotechnology, National Institute of Technology, Warangal, India
2Department of Chemical Engineering, National Institute of Technology, Warangal, India
Corresponding Author : Korrapati Narasimhulu
Assistant Professor
Department of Biotechnology
National Institute of Technology
Warangal, India
Tel: 919985470286
E-mail: [email protected]
Received April 26, 2012; Accepted June 07, 2012; Published June 09, 2012
Citation: Narasimhulu K, Pydi Setty Y (2012) Studies on Biosorption of Chromium Ions from Wastewater Using Biomass of Aspergillus niger Species. J Bioremed Biodeg 3:157. doi:10.4172/2155-6199.1000157
Copyright: © 2012 Narasimhulu K, et al. 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

he biosorption capacity of immobilized biosorbents for Cr (VI) was found to depend on pH, contact time, biosorbent dose and initial concentration of Cr (VI). In this study, the maximum uptake of Cr (VI) was 93.4, 96.2 and 98.6 mg respectively at a pH 1.5 and with an increase in pH up to 11 the metal uptake decreased gradually upto 39.95, 52.35 and 66.48 mg respectively for acid treated, untreated and base treated fungal biosorbents.Increase in biosorbent dose up to 1g of biomass and contact time up to 60 min resulted in an increase in biosorption from 20.2, 16.8 and 28.3 mg at a biosorbent dose of 0.1g 100 ml-1 to 93.4, 96.2 and 98.6 mg at a biosorbent dose of 1.0 g 100 ml-1 and then further increase in adsorbent dose and contact time did not result in more Cr (VI) adsorption by per unit weight of biosorbent.

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