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本文探讨饮水有机物浓集流速及加氯量对致突变活性的影响。试验表明，饮水有机物浓集流速控制在每分钟２倍树脂柱床体积时，可获得最佳致突变效果。当加氯量≥２０ｍｇ／Ｌ时，对ＴＡ９８±Ｓ９和ＴＡ１００—Ｓ９菌株有致突变活性，≤２ｍｇ／Ｌ时对ＴＡ９８±Ｓ９和ＴＡ１００±Ｓ９菌株无致突变活性。为最大限度减少致突变效应，在净水过程中保证流行病学安全前提下，减少加氯量和加氯次数是十分必要的。
In this paper, the effects of concentration of organic matter in drinking water and chlorination on mutagenic activity were investigated. Experiments show that the organic matter concentration of drinking water flow control at twice the resin bed volume per minute, the best mutagenic effect can be obtained. The mutagenic activity of TA98 ± S9 and TA100-S9 strains was induced when the chlorination amount was more than 20mg / L, but no mutagenic activity was found when TA2 ± S9 and TA100 ± S9 were ≤2mg / L. In order to minimize the effect of mutagenesis, it is necessary to reduce the amount of chlorine added and the number of chlorine additions while ensuring epidemiological safety in the water purification process.