氧化铝载体下二氧化氯催化氧化处理印染废水  

Catalytic Oxidation Treatment of Reactive Brilliant Red Dye Wastewater by Chlorine Dioxide

作　　者：王承涛[1] 贺启环[1] 贺鹏[1] 马廷珍[1] 

机构地区：[1]南京理工大学环境科学与工程系,南京210094

出　　处：《环境科学与技术》2006年第12期65-67,共3页Environmental Science & Technology

基　　金：江苏省环境工程重点实验室开放基金资助课题(KF-2003-02)

摘　　要：研究了二氧化氯化学氧化体系和二氧化氯催化氧化体系。实验结果表明:单用二氧化氯化学氧化处理COD为2700mg/L的活性艳红染料配制废水时,最佳反应pH值为10,氧化剂经济用量为800mgClO2/L废水,反应时间为30min,COD去除率可达63%左右,氧化指数(COD削减量∶ClO2投加量)=2.18。当二氧化氯与自制催化剂所组成的催化氧化体系用于对活性艳红染料配制废水的处理时,最佳反应pH值为10左右,氧化剂经济用量为1000mgClO2/L废水,反应时间为90min,COD去除率可达83.4%,氧化指数=2.25。结果表明,二氧化氯催化氧化法是一种新型高效的处理难降解废水的技术,有着广阔的应用前景。ClO2 chemical oxidation system and ClO2 catalytic oxidation system were studied for treating reactive brilliant red dye wastewater with COD of 2700mg/L. Results showed that by adjusting pH to 10 and adding 800mg/L wastewater, an active time of 30min was the most effective and economical with COD removal efficiency over 63% and oxidation index of 2.18. When treating wastewater by catalytic oxidation of ClO2 and a special catalyst, adjusting pH to 10 and adding 1000mgClO2, an active time of 90min was the most effective and economical with COD removal efficiency up to 83.4% and oxidation index of 2.25. Results illustrated that ClO2 catalytic oxidation was an efficient method for treating refractory wastewater.

关 键 词：二氧化氯 催化氧化 难降解废水 

分 类 号：X791[环境科学与工程—环境工程]