The test results show us not only the ratio of de-COD in photosensitive oxidation system reaches 63.5%, but also acridine orange can be reused.

结果发现，不但光敏氧化体系对废水COD去除率高，达到63.5%，而且吖啶橙光敏剂可以多次重复利用。

youdao

The character of granule, cultivation of special granule and its application to COD removal, de-nitrogen, toxic chemicals degradation, heavy metal adsorption in wastewater treatment were reviewed.

并详细介绍了颗粒污泥的特点，特种颗粒污泥的培养及其在COD去除、脱氮、降解毒性物质和重金属吸附等方面的应用，并对其应用前景进行了展望。

youdao

They stand on their feet for long hours in the cold, sharpening fillet knives and slicing up and de-boning the monkfish, cod and halibut that the fishing boats bring in.

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