Abstract
In this study, dye removal from synthetic colored wastewater using electrocoagulation process was studied. Acid Red 73 was used as model dye compound. The effects of operational parameters, such as current density, reaction time, initial dye concentration, electrolyte concentration, initial pH, and polyaluminum chloride (as a coagulant), on dye removal were investigated. The cost of wastewater treatment at optimal condition was investigated. The results showed that electrocoagulation process was able to remove 99% dye and 88% chemical oxygen demand. Using polyaluminum chloride as a coagulant had significant impact on improving process efficiency, time, and cost reduction. It can be concluded that electrocoagulation was a very effective and fast method to remove acid dye from colored wastewater.
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