摘要
现在测定COD多数采用的是重铬酸钾硫酸回流法消解水样,此方法存在着消解后铬盐排放会造成二次污染、回流氧化时间过长、因使用剧毒的汞盐作掩蔽剂易引起汞污染等缺点。针对这些缺点本文将介绍一些新的方法和监测技术。
Now most USES is the determination of COD dichromate sulfuric acid reflux method water digestion. This method has a discharge can cause after the resolution of chromate secondary pollution, reflow oxidation by using a long time, the poisonous salt as mercury masking agent of mercury pollution caused by defects in Iraq. According to these disadvantages, this article will introduce some new methods and monitoring technology.
出处
《环境与发展》
2010年第2期80-82,共3页
Environment & Development
关键词
COD
监测技术
无汞开管法
COD
Wet ozone technique is applied to COD monitoring
Gas phase chemical luminescence technology applied to COD monitoring
Mercury -free open tube method
