消毒副产物N-亚硝基二甲胺的预处理去除工艺

摘要

As new finding disinfection by-products (DBPs), N -Nitrosodimethylamine (NDMA) is becoming research focus for its high carcinogenicity. The toxicity of NDMA as well as its harmful effect on human beings was presented. Some pretreatment technologies of drinking water such as activated carbon adsorption, enhanced coagulation, chemical oxidation, advanced oxidation, biological oxidation, photo—degradation and film processing were summarized. The control effect of the process on NDMA and its precursors were analyzed.%N-亚硝基二甲胺(NDMA)作为饮用水中一种新型的消毒副产物(DBPs),因其具有高致癌性逐渐成为研究热点.该文介绍了NDMA的毒性和对人体的危害,并通过对活性炭吸附、强化混凝、化学氧化、高级氧化、生物氧化、紫外光降解和膜处理六种饮用水预处理工艺进行了总结,分析了各工艺对NDMA以及其前体物质的控制效果.