Abstract—Effluent from distilleries, known as spent wash,
leads to extensive soil and water pollution. Removal of
pollutants and color from distillery effluent is becoming
increasingly important from environmental and aesthetic point
of view. Effluent from distilleries contains certain recalcitrant
compounds. In the present work effort were made to reduce
chemical oxygen demand (COD) from distillery effluent by
electrocoagulation. The maximum COD removal efficiency of
98% was obtained at solution pH of 7.2 with a current density
17.9 mA/cm2 for electrolysis duration of 3 h. Further
experiments were performed using aluminum sulphate as
chemical coagulant to compare the COD removal efficiencies
obtained by electrocoagulation and chemical coagulation.
Index Terms—Spentwash, electrocoagulation, coagulation,
aluminum.
Anil K. Saroha is with Dept. of Chemical Engineering, Indian Institute
of Technology, Delhi Hauz Khas, New Delhi-110016, India (e-mail:
aksaroha@chemical.iitd.ac.in).
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Cite:V. Khandegar and Anil K. Saroh, "Treatment of Distillery Spentwash by Electrocoagulation," Journal of Clean Energy Technologies vol. 2, no. 3, pp. 244-247, 2014.