摘要： 将臭氧应用在中水回用于工业循环冷却水系统的处理中，研究在不同臭氧投加量下模拟循环冷却水系统中的腐蚀情况，并对中水主要存在的COD、NH₃-N较高问题加以研究。结果表明：当臭氧投加质量浓度为3.5mg/L时，臭氧缓蚀能力最佳，碳钢挂片腐蚀率最低为0.303 5 mm/a，缓蚀率为51.67%，臭氧与DJNP01共同作用时腐蚀率为0.189 3 mm/a，具有较好协同作用。COD_Cr和NH₃-N的去除率分别为70.2%、65%，达到工业水补水水质要求。

关键词: 臭氧, 缓蚀, 中水, 循环冷却水系统

Abstract: Applying ozone to the reuse of reclaimed water in circulating cooling water treatment systems,the corrosion situation in a simulated circulating cooling water system under different ozone dosage conditions has been investigated,and the problems that COD and NH₃-N in the reclaimed water are relatively high have been researched. The results show that the corrosion inhibition capability is the best,when ozone optimum dosage is 3.5 mg/L,the lowest carbon steel coupon corrosion rate is 0.303 5 mm/a,and corrosion inhibition rate 51.67%. When ozone and DJNP01 work co-efficiently,the corrosion rate is 0.189 3 mm/a,having relatively good synergistic effect. The removing rates of COD_Cr and NH₃-N are 70.2% and 65%,respectively,meeting the requirements for the water quality of industrial water make-up water.

Key words: ozone, corrosion inhibition, reclaimed water, circulating cooling water system

中图分类号: 

• TQ085+.41