摘要： 针对沿河排污口的氨氮超标问题，提出次氯酸钠作氧化剂的高效处理方法。选择氨氮质量浓度为7.5~13.0 mg/L的受污染水，探索次氯酸钠投药量、反应时间对出水氨氮的影响，确定次氯酸钠最佳投药量。同时针对余氯问题，采用双氧水进行去除，考察其最佳投药量。通过实际工程运行，总结出工程应用中次氯酸钠投加量与实验室投加量的关系。

关键词: 次氯酸钠, 氨氮, 余氯, 黑臭水体

Abstract: Aiming at the problem of excessive nitrogen ammonia concentration at the draining outlet along the river, a highly efficient treatment method of sodium hypochlorite as oxidant has been proposed,the polluted water with ammonia nitrogen mass concentration of 7.5 to 13.0 mg/L selected,the influence of sodium hypochlorite dosage and reaction time on the final effluent ammonia nitrogen investigated,and the optimal dosage of sodium hypochlorite ascertained. In addition,aiming at the problem of residual chlorine,hydrogen peroxide is used for its removal,and its optimal dosage investigated. Through actual engineering operation,the relationship between the sodium hypochlorite dosage in engineering application and the dosage in laboratory is summarized.

Key words: sodium hypochlorite, ammonia nitrogen, residual chlorine, malodorous black water

中图分类号: 

• X703