A combined electrocoagulation and mixing process was utilized to treat river water contaminated by textile waste. The electrocoagulation process was carried out in a cylindrical reactor equipped with an impeller and baffles for mixing purposes. Two types of impellers were used, i.e. three-blade propeller and Rushton turbine, to study the influence of the impeller types on the quality of effluent. Three pairs of aluminum (Al) plate electrodes were attached to the reactor as baffles to create turbulence and facilitate proper mixing. The influence of an applied electrical current was also investigated. The experimental results showed that TSS, TDS, BOD, and COD were effectively reduced when using a propeller with an applied current of 15 A. The reduction percentages were 98%, 74%, 57% and 49%, respectively. During 60 minutes of electrocoagulation process, the average mass of the Al electrodes is reduced by 1.7 grams at the operating current of 10 A and 0.6 grams at a current of 15 A. In addition, the pH of effluent was between 7 - 8, which meets the quality standard of effluent wastewater.
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