化学需氧量测定方法研究进展

Research Progress on Determination Methods of Chemical Oxygen Demand

化学需氧量是表征水环境中还原性物质的重要指标之一,是评价水环境质量特别是水体受有机污染严重程度的重要指标。化学需氧量测定结果与所采用方法及实验条件控制紧密相关,因此对化学需氧量测定方法的研究具有十分重要的意义。本文综述了目前国内主要的化学需氧量测定方法,并对其发展前景进行展望。

Chemical oxygen demand(COD)is one of the important indicators to characterize the reducing substances in water environment,and it is also an important indicator to evaluate the quality of water environment,especially the severity of organic pollution.The results of chemical oxygen demand(COD)measurement are closely related to the methods used and the control of experimental conditions,so it is of great significance to study the methods of COD measurement.In this paper,the main determination methods of chemical oxygen demand in China are summarized,and its development prospect is prospected.