biochemical sewage treatment

例句：

1. 1.The city's sewage treatment plant processes millions of gallons of wastewater daily.
   该市的污水处理厂每天处理数百万加仑的废水。
2. 2.Biochemical treatment is a promising approach to reducing pollution in the environment.
   生物化学处理是一种有前景的方法，用于减少环境污染。
3. 3.The biochemical process involves using microorganisms to break down organic matter in wastewater.
   生物化学过程涉及使用微生物来分解废水中的有机物质。