Kinetics Studies on Biological Treatment of Tannery Wastewater Using Mixed Culture
نویسندگان
چکیده
In this study, aerobic digestion of tannery industry wastewater was carried out using mixed culture obtained from common effluent treatment plant treating tannery wastewater. The effect of pH, temperature, inoculum concentration, agitation speed and initial substrate concentration on the reduction of organic matters were found. The optimum conditions for COD reduction was found to be pH 7 (60%), temperature 30C (61%), inoculum concentration 2% (61%), agitation speed 150rpm (65%) and initial substrate concentration 1560 mg COD/L (74%). Kinetics studies were carried by using Monod model, First order, Diffusional model and Singh model. From the results it was found that the Monod model suits well for the degradation of tannery wastewater using mixed microbial consortium. Keywords—Tannery, Wastewater, Biological treatment, Aerobic, Mixed culture, Kinetics.
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