漳州市区2007-2012年二次供水与末梢水监测情况比较分析  

Comparative Analysis of the Secondary Water Supply and Peripheral Water Monitoring from 2007 to 2012 in Zhangzhou City

作　　者：胡慧玲[1] 吴月娇[1] 杨晴文 姚海燕[1] 郑如聪[1] 林龙午 

机构地区：[1]漳州市疾病预防控制中心,福建漳州363000

出　　处：《中外医学研究》2015年第5期66-68,共3页CHINESE AND FOREIGN MEDICAL RESEARCH

摘　　要：目的：了解漳州市城市饮用水的二次供水监测情况,不合格的项目通过与末梢水对比,分析存在问题,提出改进策略。方法：按照国标GB/T5750.4-5750.7-2006、GB/T5750.12-2006检测,GB5749-2006评价。结果：167份二次供水的感官、pH、耗氧量、氨氮、铁、锰、亚硝酸盐合格率100%;游离余氯合格率最低平均28.1%,其次菌落总数合格率平均60.5%,总大肠菌群合格率平均94.0%;1039份末梢水的游离余氯合格率平均99.8%,菌落总数合格率平均93.6%,总大肠菌群合格率平均98.5%。结论：目前的集中式供水（包括出厂水和管网末梢水）具有较高的合格率,已经基本能够满足GB5749-2006的要求;但是二次供水作为集中式供水的延伸,仍然存在安全隐患。Objective：To understand the secondary water supply monitoring situation of Zhangzhou city drinking water,the unqualified items compared with peripheral water,analysis of the existing problems and put forward improvement strategies.Method：All samples were detected according to the national standard GB/T5750.4-5750.7-2006,GB/T5750.12-2006,and evaluated on the basis of GB5749-2006.Result：In the 167 secondary water supply,the qualified rate of sensory indicators,pH,oxygen consumption,ammonia nitrogen,iron,manganese,nitrite were 100%.In addition, the average qualified rate of free residual chlorine was 28.1%,total number of colonies average qualified rate was 60.5%,the total coliform bacteria average qualified rate was 94.0%.In the 1039 peripheral water,the average qualified rate of free residual chlorine was 99.8%,total number of colonies average qualified rate was 93.6%,the total coliform bacteria average qualified rate was 98.5%.Conclusion：Centralized water supply（including the finished water and tap water）at present has a higher passing rate,has been able to basically meet the requirements of GB5749-2006.But the secondary water supply as an extension of the centralized water supply,still has the existence of security risks.

关 键 词：二次供水 末梢水 监测结果 合格率 

分 类 号：R123.1[医药卫生—环境卫生学]