摘要
针对采用氯胺消毒的供水系统中存在的亚硝酸盐超标的现象,对南方某市供水管网中硝酸盐情况进行了调查,探讨管网中亚硝酸盐现状,变化规律和亚硝酸盐生成的影响因素．调查发现,某市管网中亚硝酸盐超标严重,需要引起重视；原水生物预处理前亚硝酸盐浓度呈周期性变化,每年春夏之交浓度最高,预处理后亚硝酸盐浓度大幅度降低；管网中亚硝酸盐的生成受水温、余氯、氨氮等多方面水质参数的影响．
An investigation on occurrence and changes of nitrite in the drinking water distribution system in one southern city in China was carried out. The survey results indicate that the concentration of nitrite in the drinking water distribution system is very high and should be regarded seriously. The occurrence and changes of nitrite and relevant influential factors was analyzed. It has been found that the concentration of the nitrite changes periodically while there is no bio-pretreatment on the raw water and reaches the highest level in the late Spring and the beginning of Summer, but decreases sharply affecting the nitrite production include the water temperature, quality parameters. after the bio-pretreatment process. The factors residual chlorine, ammonia and other water
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2006年第7期1047-1050,共4页
Journal of Harbin Institute of Technology
基金
国家高技术研究发展计划资助项目(2002AA601120).
关键词
水质调查
管网
亚硝酸盐
硝化反应
water quality survey
distribution system
nitrite
nitrification
