Efficiency of Penicillium chrysogenum PTCC 5037 in reducing low concentration of chromium hexavalent in a chromium electroplating plant wastewater.
The effectiveness of Penicillium chrysogenum was evaluated for reducing Cr(VI) from the wastewater of a chromium electroplating plant. Statistically-based experimental designs were applied to optimize the condition for reducing Cr(VI) to Cr(III). By applying Plackett-Burman factorial design and central composite design as the optimization step, attempts were made to identify optimal values of the three factors that bringing about maximum microorganism activity and therefore maximum hexavalent chromium(VI) bioreduction. It was found that each gram of P. chrysogenum of dry biomass condition could reduce 66 mg of Cr(VI) to Cr(III) in the wastewater of the chromium electroplating plant.
Pazouki
M
M
Materials and Energy Research Center, P.O. Box 14155-4777, Tehran, Iran. mpazouki@merc.ac.ir <mpazouki@merc.ac.ir>
Keyanpour-Rad
M
M
Shafie
Sh
Sh
Shahhoseini
Sh
Sh
D001673:Biodegradation, Environmental; D002857:Chromium / Q000378:metabolism*; D046508:Culture Techniques; D004595:Electroplating; D007220:Industrial Waste; D008669:Metallurgy; D010408:Penicillium chrysogenum / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D018508:Water Purification
D007220:Industrial Waste; D014874:Water Pollutants, Chemical; D002857:Chromium; C074702:chromium hexavalent ion