...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。
A method based on all band ultraviolet scanning for measuring water chemical oxygen demand (COD) was introduced, and the method was applied to develop an on-line COD measuring instrument.
介绍了一种基于紫外全波段扫描的水质化学需氧量(COD)测量技术以及运用该技术设计开发的在线COD测量仪器。
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。
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