chemical sewage是什么意思

用法例句

The sewage source and its quality of the Tianjin port chemical sewage treatment project and the tests in laboratory for realizing the scheme of treatment are introduced in the paper.

介绍天津港化学污水处理工程的污水水源、水质及为实现处理方案而作的试验室试验情况 ,最后采用SBR法处理化学污水 ,主要指标达到国家三废排放标准。