REMOVAL OF DIRECT BLUE DYE IN TEXTILEWASTEWATER EFFLUENT BY ELECTROCOAGULATION
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Abstract
Removal of direct blue dye by electrocoagulation method has been investigated using aluminum
electrode in a bench-scale electrochemical system. Current density, NaCl concentration,
electrocoagulation time, and dye concentration has been studied as effecting parameters in color
removal efficiency. Increasing of current density will increase the color removal efficiency and
energy consumption as well. While increasing NaCl concentration increase the color removal
efficiency but it decrease energy consumption. High dye concentration is needed for extra
electrocaogolation time to reach the same efficiency that obtained with low dye concentration .With
current applied 0.35 amps. and NaCl concentration of 2 g/l more than 93% efficiency achieved in
14 min. of electrocaogolation time.
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