摘要
消毒是保证污水再生利用水质安全的必要措施,氯消毒是最常用的消毒方法。在氯消毒过程中,污水中的含氮有机物与氯反应会生成有毒有害的有机氯胺。国外很早就开始了对有机氯胺的研究,而国内对有机氯胺的关注较少。有机氯胺在一定条件下可以在自然水体中长时间稳定存在,部分有机氯胺在脱氯时不易被亚硫酸钠脱除。有机氯胺一般具有一定的生物毒性,而且一些有机氯胺也是致癌消毒副产物的前体物质,对水中的生物以及人体健康会产生毒害作用。消毒过程中有机氯胺的生成不仅会降低消毒效果,而且也会影响水体中余氯的测定。
Disinfection is an important step to chlorine disinfection is the most common method. wastewater with chlorine will form toxic and harmful guarantee the safety of the reclaimed water, and The reaction of organic nitrogen compounds in organic chloramines during the chlorination. Studies about organic chloramines have begun early in some foreign countries, while little concern is paid on this field in China. Organic ehloramines may be stable in the natural water body for a long time. Some orga- nic ehloramines show resistant to the sodium sulfite during the deehlorination. Organic ehloramines are u- sually toxic and some can be the precursors of some carcinogens, which are more toxic and human beings. The formation of organic ehloramines will reduce the disinfection the determination of residual chlorine. to the aquatic lives efficacy and affect
出处
《中国给水排水》
CAS
CSCD
北大核心
2007年第24期20-23,共4页
China Water & Wastewater
基金
NFSC-JST重大国际合作项目(20510076)
关键词
有机氯胺
氯消毒
含氮有机物
污水再生利用
organic chloramines
chlorine disinfection
organic nitrogen compound
wastewater reuse
