对测定废水中COD含量的研究  

The Study of Determination of COD in Waste Water Content

作　　者：周峻 黄晓晨 

机构地区：[1]昆山市千灯三废有限公司,江苏昆山215341

出　　处：《广东化工》2015年第4期78-79,共2页Guangdong Chemical Industry

摘　　要：化学需氧量COD是指在一定条件下,用强氧化剂处理水样时所消耗氧化剂的量,不仅反映水体受还原性污染的污染程度,还是评价水体中污染物的重要指标。文章分析了COD测定方法的现状,介绍了重铬酸钾标准法、分光光度法、微波消解光度法、极谱法、库仑法、电化学探头法、静电流法等七种COD测定方法。Chemical oxygen demand（COD） is refers to under certain conditions, with the amount of consumption of oxidant by strong oxidizer treatment in water, Not only reflect the water pollution by reducing pollution, is an important index of evaluation of pollutants in water. The paper analyzes the present situation of COD determination method, this paper introduces the standard potassium dichromate method, spectrophotometry, microwave digestion spectrophotometry, polarography, coulomb method, electrochemical probe method, the static current method of seven kinds of COD determination method.

关 键 词：化学需氧量 还原性污染 

分 类 号：TQ225.261[化学工程—有机化工]