化学需氧量(COD)测定过程中常见问题探析  

Exploration and Analysis of Common Problems in the Process of Measuring Chemical Oxygen Demand(COD)

作　　者：方成圆[1] 胥吉萍 李佳[1] 刘金涛[1] 余雅婷[1] 

机构地区：[1]沈阳化工大学,辽宁沈阳110142 [2]大连理工大学化工与环境生命学部,辽宁大连116024

出　　处：《科技创新导报》2014年第22期215-216,共2页Science and Technology Innovation Herald

摘　　要：该文简述了各类COD测定方法,并分析了影响COD测定结果的各种内外部影响因素,其中氯离子对COD的测定结果影响最大,操作者严格执行操作规程的程度也在一定程度上影响其结果,同时给出了提高测定结果准确度的方法。Several measuring methods of COD were introduced in this paper, and the influence factors for COD result were analyzed.Content of Cl-was the biggest influence factor, in addition,the degree of standard operation by the operator affect the result also.The methods for improvement testing accuracy were presentation.

关 键 词：化学需氧量(COD) 铬法 锰法 氧化剂 还原性物质 

分 类 号：X8[环境科学与工程—环境工程]