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。

youdao

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。

youdao

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。

youdao