环境保护科学2016，Vol.42Issue(4)：115-119,5.DOI:10.16803/j.cnki.issn.1004-6216.2016.04.024
水污染源在线设备比对监测问题与解决方案--以长沙市在线监测系统为例
Problems and Solutions in Comparative Monitoring of the On-Line Wastewater Monitoring System-- Taking the On-line Monitoring System in Changsha as an Example
谭菊 1刘舸 1谭芬芳 1许雄飞 1陈巧1
作者信息
- 1. 长沙市环境监测中心站，湖南 长沙 410001
- 折叠
摘要
Abstract
In this paper, the working status of comparative monitoring of the online wastewater monitoring system in Changsha in the recent 7 years is summarized. Furthermore, the problems existing in the comparative monitoring of ammonia nitrogen, pH and heavy metals are analyzed. The reasons that on-line monitoring instruments are unqualified and the problems that some on-line monitoring instruments are lack of error criteria are discussed in details. Then, reasonable ranges of various factor errors are studied and feasible solutions are proposed accordingly. That is, with regard to ammonia nitrogen, the error range should be determined according to the detection concentration; with regard to pH quality control, relative error should not be used and absolute error of ±0.3 pH is recommended; if the concentrations of heavy metals in the actual water samples are less than a certain amount, a quality control sample with a low concentration approximately close to the water samples should be used for replacement.关键词
水污染源在线监测/比对监测/氨氮/pH/重金属Key words
Wastewater On-line Monitoring/Comparative Monitoring/Ammonia Nitrogen/pH/Heavy Metal分类
资源环境引用本文复制引用
谭菊,刘舸,谭芬芳,许雄飞,陈巧..水污染源在线设备比对监测问题与解决方案--以长沙市在线监测系统为例[J].环境保护科学,2016,42(4):115-119,5.
