chemical oxygen demand (COD)

基本解释

The effective factors such as content of SEPZ, aeration mode, biodegradation temperature and initial chemical oxygen demand(COD) were investigated.
考察了菌种浓度、曝气方式、降解温度、初始化学需氧量（COD）等因素对降解效果的影响。
An experiment was made on the pharmaceutical wastewater treatment with the contact oxidation process by adding effective microorganisms(EM) to remove the chemical oxygen demand(COD).
应用生物接触氧化法投加有效微生物菌群（EM）对制药废水中化学需氧量的去除效果进行试验研究和分析。
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。