ATC waste liquid has such characteristics as high CODcr, high salinity and nonbiodegradable.

ATC废液具有高COD,高含盐量，以及难生物解。

Nonbiodegradable pollutants, such as certain chlorinated hydrocarbon pesticides (e.g.DDT) and heavy metals, such as lead, copper, and zinc in some industrial effluents, accumulate in the environment.

生物不可解污染，烃类杀虫剂（DDT）和工业废水中重金属，铅、铜和锌，在环境中积累。