nonbiodegradable GMAT

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

ATC废液具有高COD,高含盐量，以及难生物降解的特点。

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.

生物不可降解的污染，氯（DDT）和工业废水中的重金属，铅、铜和锌，在环境中积累。