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BIOSORPTION OF CHROMIUM (VI) USING ASPERGILLUS NIGER

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Author(s): Rajesh Ghosh*, Bychapur Siddaiah Gowrishankar and Shridhar Shrimant Bagali

Journal: International Journal of Bioassays
ISSN 2278-778X

Volume: 2;
Issue: 6;
Start page: 880;
Date: 2013;

Keywords: Response Surface Methodology | Optimization | Analysis Of Variance and Aspergillus niger.

ABSTRACT
The response surface methodology was employed to make mathematical modeling and optimization of the concentration of chromium and temperature. A polynomial regression model equation was Y1 = 72.00 + 0.71 x1 + 7.44 x2 + 2.50 x1 x2 – 32.06 x12– 17.81 x22 obtained with concentration of chromium (X1) and temperature (X2). The optimal concentration of chromium and temperature were found to be 126 ppm and 34oC respectively. The maximum % of chromium removal was found to be 71.05. The simulation parameter revealed that the modeled values were in good agreement with simulated ones.
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