摘要
目的了解广州市不同原水、不同季度及处理工艺的市政饮用水水质卫生状况。方法于2008—2013年对该市7座市政水厂的水源水(n=168)、出厂水(n=168)以及管网末梢水(n=345)进行检测。结果水源水、出厂水和管网末梢水分的合格率分别为5.95%、75.00%和65.80%。水源水的不合格项目有耐热大肠菌群、铁、氨氮和锰等;出厂水的不合格项目有氨氮等;管网末梢水不合格项目有菌落总数、耗氧量和锰等。部分水厂将水源由珠江转换为西江,西江水水质相对较好,以西江水为水源的出厂水和末梢水水质优于珠江。结论更换水源后出厂水和末梢水水质明显提高,但管网末梢水合格率仍低于出厂水。
Objective To evaluate the quality of drinki ag water with different treatment process from different water sources in four seasons in Guangzhou . Methods The source water samples （n=168）, finished water samples （n=168） and tap water samples （n=345） from seven municipal water works during 2008 to 2013 were analyzed. Results The qualified rates of source water, finished water and tap water were 5.95%, 75.0C% and 65.80% respectively. The unqualified indicators of source water were thermotolerant coliform, iron, ammonia nitrogen, manganese and so on, and as for the finished water, the unqualified indicators were ammonia nitrogen and so on, and as for the tap water, they were the total numbers of colony, oxygen consumption, manganese and so on. Some water works changed the source water from Zhujiang River to Xijiang River, which showed higher water quality in finished water and tap water compared with before. Conclusion The quality of finished water and tap water is improved significantly after water souree exchange, and the qualified rate of tap water is still lower than that of finished water.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2014年第6期519-521,共3页
Journal of Environment and Health
基金
广东省科技计划项目(2012Y2-00020)
关键词
水源水
出厂水
末梢水
净水工艺
Source water
Finished water
Tap water
Water purification process
