chemical oxygen demand 化学需氧量，化学氧需求量
...示废水污染度是指在20℃下5天的BOD，以毎升水(所含的污染物)所消耗的氧的毫克数来表示，化学需氧量(COD-Chemical Oxygen Demand)指用重铬酸钾为氧化剂在强酸下与废水加热2h，使水中有机碳转变为CO2及水所消耗的重铬酸钾量换算成相当的氧的量，单位同BOD。
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COD Chemical oxygen demand 化学需氧量 ; 化学耗氧量 ; 化学的氧要求量
COD - Chemical Oxygen Demand 化学需氧量
The influence factors of chemical oxygen demand (COD) and removal effect of chroma during the wet air oxidation of degradation-resistant pesticide wastewater with high salinity were investigated.
采用湿式氧化技术研究高盐度、难降解农药废水在湿式氧化反应中COD去除率的影响因素及色度的去除效果。
To rapidly determine the pollution extent of wastewater, the potential of near infrared(NIR) spectroscopy for measurement of chemical oxygen demand(COD) in wastewater was investigated.
为快速确定废水的污染程度，研究了运用近红外光谱法测量废水化学需氧量（COD）的可行性。
A method for the rapid and accurate determination of chemical oxygen demand (COD) using potassiumdichromate as oxidant under new conditions is described in this paper.
本文提出了一种以重铬酸钾为氧化剂在新的条件下快速及准确测定化学耗氧量（COD）的方法。
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