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- Title
Electrocoagulation Studies on Treatment of Biodigester Effluent using Aluminum Electrodes.
- Authors
Ponselvan, F.; Kumar, Mayank; Malviya, Jodha; Srivastava, Vimal; Mall, Indra
- Abstract
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.
- Subjects
ELECTROCOAGULATION (Chemistry); SEWAGE purification processes; CHEMICAL oxygen demand; INDUSTRIAL wastes; DISTILLERIES; EXPERIMENTAL design; EFFLUENT quality testing
- Publication
Water, Air & Soil Pollution, 2009, Vol 199, Issue 1-4, p371
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-008-9885-7