利用固相反硝化工艺去除饮用水原水中的硝酸盐  

Removal of Nitrate from Raw Drinking Water Using Solid-phase Denitrification Process

作　　者：王旭明[1] 王建龙[1] 

机构地区：[1]清华大学核能与新能源技术研究院

出　　处：《中国给水排水》2008年第6期6-10,共5页China Water & Wastewater

基　　金：国家自然科学基金资助项目(59978020);高等学校博士学科点专项科研基金资助课题

摘　　要：饮用水原水中的硝酸盐污染已成为世界范围内普遍而日益突出的问题,固相反硝化是有效去除原水中硝酸盐的一种新工艺,该工艺利用不溶于水的固体有机物(生物质、可生物降解聚合物等)同时作为反硝化微生物的碳源和附着生长的载体,其主要优点是避免了常规异养反硝化工艺中存在的甲醇、乙醇等液体碳源易投加过量而影响出水水质的风险。讨论了不同固体碳源对反硝化作用的影响,介绍了固相反硝化工艺的研究现状,并展望了该工艺的发展趋势。Nitrate pollution of raw drinking water has become a widespread and increasing problem on a world scale. A novel biodenitrification process termed as solid-phase denitrification can effectively remove nitrate from drinking water. In this process, insoluble solid substrates （biomass, biodegradable polymers and so on） are used not only as constant carbon sources for microbial denitrification but also as solid matrices favorable for development of microbial films. In contrast to conventionally heterotrophic denitrification processes, this process has no potential risk of overdosing of methanol, ethanol and other liquid carbon sources with the resultant deterioration of treated water quality. The effect of various solid carbon sources on denitrification of drinking water was discussed. Moreover, the present status of research on solid-phase denitrification process was introduced, and the development tendency of the process was prospected.

关 键 词：饮用水 硝酸盐 固相反硝化 可生物降解聚合物 

分 类 号：TU991.2[建筑科学—市政工程]