摘要
采用含氰化物(CN-)的试验水样模拟城市取水水源地发生氰化物水污染事故,分别比较Cl2、ClO2和O3处理CN-的氧化效率,初步探讨三种氧化剂氧化降解CN-的机理,并考察投加浓度对CN-去除率的影响。试验表明,Cl2氧化CN-的效率较ClO2和O3高;用浓度为25.6μmmol/L的Cl2处理由原水配制含CN-的试验水样,反应进行20 min,CN-去除率达98.6%,Cl2可用于应急处理氰化物水污染事故。
Cyanide polluted water was treated by 3 kinds of oxidants：chlorine,chlorine dioxide and ozone. The results show that the removal rate of cyanide is effected by the concentration of the oxidants, the removal rates of C12 was 98.6 %, which was higher than that of C12 and C102. C12 is recommended to be used in case of cyanide pollution accident happens to raw water.
出处
《净水技术》
CAS
2012年第1期52-54,67,共4页
Water Purification Technology
基金
"十一五"水专项(2008ZX07420-005)
关键词
氰化物
水污染
氯气氧化
臭氧氧化
cyanide water pollution chlorine oxidation ozone oxidation
