富里酸氯化-消毒副产物生成的影响因子

３－氯－４－（二氯甲基）－５－羟基－２（５Ｈ）－呋喃酮（ＭＸ）及二氯乙酸（ＤＣＡ）和三氯乙酸（ＴＣＡ）是氯化消毒副产物（ＤＢＰｓ）研究的重点。水体中的腐殖质，特别是富里酸，是饮用水消毒副产物的重点前驱物。从太湖底泥中提取富里酸，进行模拟氯化，用ＧＣ／ＭＳ测定生成的ＭＸ和氯代酸，研究氯化条件对ＭＸ、ＤＣＡ及ＴＣＡ生成量的影响。结果发现，ＭＸ、ＤＣＡ、ＴＣＡ的生成量与总有机碳（ＴＯＣ）浓度呈正性相关；

Factors on the Formation of Disinfection by Products MX,DCA and TCA by Chlorination of Fulvic Acid

MX (3 Chloro 4 (dichloromethyl) 5 hydroxy 2(5H) furanone) and chlorinated acetic acids such as DCA and TCA have always been the focus of Disinfection by products(DBPs) study. In order to find out the influences of reaction time, TOC, chlorine dose, pH and temperature on the formation of MX, DCA and TCA, we extracted fulvic acid(FA) from the sediment of Tai Lake, and conducted simulated chlorination of samples rich in FA, with GC/MS as analyzing instrument. Results showed positive relationship between TOC and the yields of MX, DCA and TCA. But the influences of pH, chlorine dose, reaction time, and temperature on the formation of MX, DCA and TCA are quite different and complex.