%0 Journal Article %A Amin Mojiri and Akiyoshi Ohashi and Tomonori Kindaichi %D 2018 %J International Journal of Environmental and Ecological Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 143, 2018 %T Pollutants Removal from Synthetic Wastewater by the Combined Electrochemical Sequencing Batch Reactor %U https://publications.waset.org/pdf/10009761 %V 143 %X Synthetic domestic wastewater was treated via combining treatment methods, including electrochemical oxidation, adsorption, and sequencing batch reactor (SBR). In the upper part of the reactor, an anode and a cathode (Ti/RuO2-IrO2) were organized in parallel for the electrochemical oxidation procedure. Sodium sulfate (Na2SO4) with a concentration of 2.5 g/L was applied as the electrolyte. The voltage and current were fixed on 7.50 V and 0.40 A, respectively. Then, 15% working value of the reactor was filled by activated sludge, and 85% working value of the reactor was added with synthetic wastewater. Powdered cockleshell, 1.5 g/L, was added in the reactor to do ion-exchange. Response surface methodology was employed for statistical analysis. Reaction time (h) and pH were considered as independent factors. A total of 97.0% biochemical oxygen demand, 99.9% phosphorous and 88.6% cadmium were eliminated at the optimum reaction time (80.0 min) and pH (6.4). %P 665 - 668