化学需氧量（Chemical Oxygen Demand COD）：是指 水样在规定条件下用氧化剂处理时，其溶解性或悬浮性物质 消耗氧化剂的量。衡量水中有机物多少的指标。
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chemical oxygen demand cod removal 化学需氧量去除
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
COD - Chemical Oxygen Demand 化学需氧量
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。
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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