Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology, Kharagpur, 721 302, India.
J Environ Manage. 2017 May 15;193:524-531. doi: 10.1016/j.jenvman.2017.02.046. Epub 2017 Feb 23.
A continuous flow electrochemical reactor was developed, and its application was tested for the treatment of textile wastewater. A parallel plate configuration with serpentine flow was chosen for the continuous flow reactor. Uniparameter optimization was carried out for electrochemical oxidation of synthetic and real textile wastewater (collected from the inlet of the effluent treatment plant). Chemical Oxygen Demand (COD) removal efficiency of 90% was achieved for synthetic textile wastewater (initial COD - 780 mg L) at a flow rate of 500 mL h (retention time of 6 h) and a current density of 1.15 mA cm and the energy consumption for the degradation was 9.2 kWh (kg COD). The complete degradation of real textile wastewater (initial COD of 368 mg L) was obtained at a current density of 1.15 mA cm, NaCl concentration of 1 g L and retention time of 6 h. Energy consumption and mass transfer coefficient of the reactions were calculated. The continuous flow reactor performed better than batch reactor with reference to energy consumption and economy. The overall treatment cost for complete COD removal of real textile wastewater was 5.83 USD m.
开发了一种连续流动电化学反应器，并将其应用于处理纺织废水的测试。连续流动反应器选择了带有蛇形流动的平行板配置。对合成和实际纺织废水（从污水处理厂入口收集）的电化学氧化进行了单参数优化。在流速为 500 mL h（保留时间为 6 h）和电流密度为 1.15 mA cm 的条件下，合成纺织废水（初始 COD-780 mg L）的 COD 去除效率达到 90%，降解的能耗为 9.2 kWh（kg COD）。在电流密度为 1.15 mA cm、NaCl 浓度为 1 g L 和保留时间为 6 h 的条件下，完全降解了实际纺织废水（初始 COD 为 368 mg L）。计算了反应的能耗和传质系数。与批式反应器相比，连续流动反应器在能耗和经济性方面表现更好。完全去除实际纺织废水的 COD 的总处理成本为 5.83 美元 m。
