alexa Heavy Metals Biosorption in Liquid Solid Fluidized Bed
ISSN: 2155-9821

Journal of Bioprocessing & Biotechniques
Open Access

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Research Article

Heavy Metals Biosorption in Liquid Solid Fluidized Bed by Immobilized Consortia in Alginate Beads

R Ilamathi1*, GS Nirmala2 and L Muruganandam2
1Department of Biotechnology, SNIST, Yamnampet, Hyderabad, Andhra Pradesh, India
2Chemical Engineering Division, School of Mechanical and Building Sciences, Vellore Institute of Technology, Vellore, India
Corresponding Author : R Ilamathi
Department of Biotechnology, SNIST
Yamnampet, Hyderabad, Andhra Pradesh, India
Tel: 91-9014339148
Fax: 91-040-27640394
Email: [email protected]
Received November 30, 2013; Accepted January 02, 2014; Published January 08, 2014
Citation: Ilamathi R, Nirmala GS, Muruganandam L (2014) Heavy Metals Biosorption in Liquid Solid Fluidized Bed by Immobilized Consortia in Alginate Beads. J Bioprocess Biotech 4:145. doi:10.4172/2155-9821.1000145.
Copyright: © 2014 Ilamathi R, et al. This is an open-access 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.
 

Abstract

The adsorptive removal chromium, nickel, copper and cadmium by alginate beads containing a mixed consortium of Yeast, Pseudomonas aeruginosa, Bacillus subtilis and Escherichia coli in batch and fluidized bed column reactor was investigated. Under optimized conditions (pH 4.5; contact time 3hrs; initial metal concentration of 150mg/L) batch experiments showed that the immobilized mixed culture was successfully used for the removal of these metal ions in waste water. Fluidized bed studies were carried out in with an adsorbent dosage of 1g/L, a flow rate of 132 LPH, a bed height of length of the reactor. Efficiency of biosorption for copper, cadmium, chromium and nickel was found to be 84.62%, 67.17%, 49.25% and 61.02%. Desorption of the exhausted beads was found to be successful, however with a reduced biosorption capacity.

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