Please use this identifier to cite or link to this item: https://doi.org/10.1002/clen.200900279
Title: Biosorption of Procion Red MX 5B by Bacillus subtilis and its extracellular polysaccharide: Effect of immobilization
Authors: Binupriya, A.R.
Sathishkumar, M. 
Ku, C.S.
Yun, S.I.
Keywords: Bacillus subtilis
Biosorption
EPS
Free cells
Procion Red
Issue Date: Aug-2010
Source: Binupriya, A.R., Sathishkumar, M., Ku, C.S., Yun, S.I. (2010-08). Biosorption of Procion Red MX 5B by Bacillus subtilis and its extracellular polysaccharide: Effect of immobilization. Clean - Soil, Air, Water 38 (8) : 775-780. ScholarBank@NUS Repository. https://doi.org/10.1002/clen.200900279
Abstract: Bacillus subtilis and its extracellular polysaccharide (EPS) were used in free form as well as immobilized form as biosorbent for the removal of an anionic dye Procion Red MX 5B. Low pH was favourable for biosorption. Immobilization resulted in reduced biosorption of the dye. The presence of functional groups responsible for the high adsorption capacity in free cells (FC) and EPS was confirmed by FTIR analysis. High Qmax and b values were noted in the case of FC and free EPS in contrast to immobilized cells and EPS. The kinetics data showed that the adsorption system followed pseudo-first-order reaction at low dye concentration. Desorption of the dye was found to be 100% in 1N NaOH. In the case of immobilized biomass and EPS the alginate was found to be unstable under high alkaline conditions of NaOH. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Source Title: Clean - Soil, Air, Water
URI: http://scholarbank.nus.edu.sg/handle/10635/84535
ISSN: 18630650
DOI: 10.1002/clen.200900279
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