Electrocoagulation Studies on Treatment of Biodigester Effluent using Aluminum Electrodes

被引：0
|
作者：
F. Infant Anto Ponselvan
Mayank Kumar
Jodha Ram Malviya
Vimal Chandra Srivastava
Indra Deo Mall
机构：
[1] Indian Institute of Technology Roorkee,Department of Chemical Engineering
来源：
Water, Air, and Soil Pollution | 2009年 / 199卷
关键词：
Biodigester effluent; Electrocoagulation; Response surface methodology; Aluminum; Distillery effluent;
D O I：
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学科分类号：
摘要：
In the present paper, electrocoagulation (EC) has been employed for the reduction of chemical oxygen demand (COD) reduction of a distillery wastewater (biodigester effluent) in a batch EC reactor using aluminum electrode. The individual and interactive effects of the four main independent parameters have been studied on the COD removal efficiency using a central composite experimental design. The parameters studied are current density (j): 44.65–223.25 A/m2; initial pH (pH0): 2–8; inter-electrode distance (g): 1–3 cm; and electrolysis time (t): 30–150 min. Pareto analysis of variance of the results showed a high coefficient of determination value (R2 = 0.9693) and satisfactory prediction for second-order regression model. Maximum COD removal efficiency of 52.23% was obtained with j = 120 A/m2, pH0 = 6.0, g = 1 cm, and t = 150 min.
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页码：371 / 379
页数：8
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