Dissolved organic nitrogen (DON) in the processes of polluted source water treatment  

作　　者：GU Li LIU Bing YU Xin 

机构地区：[1]Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China

出　　处：《Chinese Science Bulletin》2010年第27期3098-3101,共4页

基　　金：supported by the National Natural Science Foundation of China(50678080);the Hundred Talents Program of Chinese Academy of Sciences(KZCX2-YW-452)

摘　　要：Dissolved organic nitrogen (DON) is currently considered to be one of the most important issues in drinking water field due to its formation of nitrogenous disinfection byproducts.This paper deals with DON concentrations in typical processes of a water treatment plant.The results show that very little DON is removed by these processes.Furthermore,biological activity in some processes can even increase DON concentration and decrease the ratio of dissolved organic carbon/DON,which may pose a risk to drinking water safety.Dissolved organic nitrogen （DON） is currently considered to be one of the most important issues in drinking water field due to its formation of nitrogenous disinfection byproducts. This paper deals with DON concentrations in typical processes of a water treatment plant. The results show that very little DON is removed by these processes. Furthermore, biological activity in some processes can even increase DON concentration and decrease the ratio of dissolved organic carbon/DON, which may pose a risk to drinking water safety.

关 键 词：溶解有机碳 有机氮 水处理过程 污染水源 消毒副产物 污水处理厂 生物活性 安全风险 

分 类 号：TU991.2[建筑科学—市政工程] P734.45[天文地球—海洋化学]