There is a fine linear correlation relation between the COD value and the turbidity in the roof and campus road runoff.
屋面及校园道路径流中的COD值与浊度之间存在很好的直线相关关系。
Because of the large quantity and high COD value, the black liquor of paper making industry is an important source of environmental pollution.
造纸黑液由于量大、COD高，是造纸废水中的主要污染源，未经处理的黑液对环境会产生极大的危害。
This has certified that the method of sealing-off Catalytic decomposition in COD Value test has its adaptability in different lines and areas in Qiqihar district.
实验证明COD密封催化消解法在不同行业与区域的废水测定中具有很好的适用性。
The photocatalysis activity of composite catalyst prepared at different calcining temperature and holding time was investigated through the determination of COD value in wastewater.
通过测定废水降解过程中的COD值，研究了不同煅烧温度及保温时间下制取的复合催化剂的光催化活性。
The dyeing and finishing wastewater with the character of great change in quality and quantity, high- concentration organic contaminants, low BOD/COD value, high chroma is degraded difficultly.
印染废水是一种水质水量变化大、有机物含量高，可生化性差，COD高，色度高的难降解废水。
The dyeing and finishing wastewater with the character of great change in quality and quantity, high- concentration organic contaminants, low BOD/COD value, high chroma is degraded difficultly.
印染废水是一种水质水量变化大、有机物含量高，可生化性差，COD高，色度高的难降解废水。
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