不同组合净水工艺对水中致突变物的去除  

A Study on the Removal of Mutagens from Water by Various United Water Purification Processes

作　　者：周立红[1] 张淑琪[1] 韩飞[1] 吴红伟[1] 张丽萍[1] 王占生[1] 

机构地区：[1]清华大学环境科学与工程系

出　　处：《环境科学》1999年第1期43-46,共4页Environmental Science

摘　　要：对５种组合净水工艺的出水及原水进行Ａｍｅｓ试验，结果显示，生物陶粒能部分去除水中直接致突变有机物，降低原水的ＭＲ比值，ＴＡ９８菌株ＭＲ比值在剂量为１Ｌ／皿水样及０．５Ｌ／皿水样时，分别比原水减少了４０．２％及４１．９％．具有生物陶粒及活性炭吸附单元的Ｂ、Ｃ、Ｅ流程，对去除水中直接致突变物最为有效，使ＴＡ９８及ＴＡ１００菌株在各试验剂量下的ＭＲ比值均小于２．采用膜过滤法测定Ｂ流程各单元出水的有机物相对分子质量分布情况，结果显示这组工艺能较好地互相补充，对相对分子质量不同的有机物，该流程总的去除率超过７７％．The source water and effluents of five kinds of water purification process were studied by Ames tests,the results show that bioceramic can remove direct mutagens partly,and decline the MR value of the raw water.As the doses were 1L/plate water and 0 5L/plate water,the MR value of TA98 decreased 40 2% and 41 9% from the raw water,respectly.B,C,E processes including units of bioceramic and activated carbon were the most effective to remove direct mutagens from water,the MR values of TA98 and TA100 were below 2 under the tested doses.The molecular weight distribution of organic compounds through various unit of water purification in processes B was detected by membrane filtration,the result shows that the units of process B can supplement each other to remove organic compounds,the total rate of removing organic compounds of different molecular weight was over 77%.

关 键 词：组合净水工艺 过滤 有机物 致突变物 净水 

分 类 号：TU991.24[建筑科学—市政工程]