摘要
以Ames试验为指标,对城市自来水中致突变有机物的光分解和光催化氧化处理效果进行了研究对比。实验表明,在相同的光照强度下,固定膜光催化氧化对水中致突变物有良好的去除作用,效果优于直接光分解。在处理时间同为1h的条件下,光催化氧化对TA98菌株诱变指数的削减率为47％,而光分解的削减率仅为33％。对水样的总有机炭,色谱图峰数和峰面积,及Ames试验诱变指数等3个指标的测定结果分析表明,Ames试验是评价氧化法饮用水深度处理效果的较好指标。
Based on the result of Ames test, removal efficiencies of photolysis and photocatalytic oxidation to mutagenic organics in municipal running water have been studied. An immobile membrane photocatalysis reactor and the same dimension photolysis reactor were used. Under same radiation condition, removal efficiency of photocatalytic oxidation was better than that of photolysis to mutagenic organics in water. After one hour treatment, induced mutation index of TA98 strain was reduced by 47% for photocatalytic oxidation, while only 33% for photolysis. Based on experimental result, some analytical criteria for evaluating drinking water quality were compared and discussed. To TOC, chromatogram calculation and Ames test, the latter one seems to be the best one for evaluating the effuent quality of drinking water deep treatment with oxidation process.
出处
《上海环境科学》
CAS
CSCD
1998年第10期35-37,共3页
Shanghai Environmental Sciences
基金
建设部科研项目
编号:85-908-03-01
获1997年度建设部科学技术进步奖二等奖。
关键词
饮用水
氧化法
致突变物
光化学氧化
有机物
Drinking water Removal efficiency of oxidation Mutagen Ames test Photohemical oxidation Photolysis
