将循环型电化学氧化中试系统用于对工业高浓度含氨废水的电化学氧化循环处理，研究了循环处理过程中循环液氨氮浓度、pH、浊度、温度、氯离子浓度的变化规律，并计算了处理能耗。实验结果表明，该系统能够通过循环处理使实际废水的氨氮浓度由500 mg/L下降至1 mg/L以下，提高电流密度是提高系统氨氮去除效率最有效的策略，循环过程中循环液温度和氯离子浓度应保持在合理范围内。该中试系统能够以循环处理的模式高效、稳定、低能耗地处理工业高浓度含氨废水，为更大规模的工业化应用提供了理论依据和实践经验。

A pilot-scale cyclic electrochemical oxidation system is developed for the electrochemical oxidation cyclic treatment of industrial wastewater containing high concentration of ammonia.The variation trends of ammoniacal nitrogen concentration,pH,turbidity,temperature and chloride ion concentration in circulating liquid are studied during the process of cyclic treatment,and the energy consumption is calculated.The results show that the system can reduce the concentration of ammoniacal nitrogen from 500 mg·L^-1 to less than 1 mg·L^-1 by cyclic treatment.Higher current density is the most effective strategy to improve the removal efficiency of ammoniacal nitrogen by the system.The temperature and chloride ion concentration of circulating liquid shall be controlled in an appropriate range during the cyclic process.This pilot-scale system can efficiently and stably deal with high concentration industrial ammonia-containing wastewater with low energy consumption in a cyclic treatment mode,which provides theoretical basis and practical experience for larger-scale industrial application.