分光光度法与标准法测定水质中COD的对比实验

The Contrast Experiment on Determining COD in Water with Spectrophotometic Method and Standard Method

对ＣＯＤ用分光光度法和标准法两种方法进行了对比测定实验．结果表明，分光光度法可消除标准法的二次污染并适合于排放废水中含ＣＯＤ在５００ｍｇ／Ｌ以下的如纺织，医药、轻工、机械、公交等单位的污水测试．

In this paper,the contrast experiment is conducted by using two methods to determine COD-spectrophotometic method and standard method.The result shows that the spectrophotometic method can help to clear up the second time pollution of the standard method and is fit for the measurement of the wastewater in such fields as textile,medicine,light industry,mechanism,public transportation and so on,in which the content of COD is below 500mg/l.