摘要
分析讨论了脱硫废水COD在氯离子的干扰下的检测方法。常用的COD检测方法有两种,分别是重铬酸钾法和高锰酸钾法,这两种方法在氯离子的干扰下不能准确的测出COD值,所以我们要采用一种方法来控制氯离子的含量,确保它对检测COD工作的影响降到最低,最终得到一个准确的COD值。
This article analyzes and discusses the detection method of desulphurization wastewater COD under the interference of chlorine ions.There are two commonly used COD detection methods:potassium dichromate method and potassium permanganate method.These two methods can not accurately measure the COD value under the interference of chloride ions.So we need to adopt a method to control the content of chloride ions to ensure that its impact on the detection of COD is minimized,and finally get an accurate COD value.
引文
[1] HJ_828-2017水质_化学需氧量的测定_重铬酸盐法[S].2018,7,10.
[2]王婧霖.提升测定高氯废水COD准确度的方法探究[J].化工管理,2016(23).