TY - JFULL AU - Amin Mojiri and Akiyoshi Ohashi and Tomonori Kindaichi PY - 2018/12/ TI - Pollutants Removal from Synthetic Wastewater by the Combined Electrochemical Sequencing Batch Reactor T2 - International Journal of Environmental and Ecological Engineering SP - 664 EP - 668 VL - 12 SN - 1307-6892 UR - https://publications.waset.org/pdf/10009761 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 143, 2018 N2 - 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). ER -