effluent treatment

例句：

1. 1. The city has implemented stricter effluent treatment standards to reduce pollution.
   该城市实施了更严格的排放处理标准以减少污染。
2. 2. The wastewater treatment plant is responsible for removing harmful substances from the water.
   废水处理厂负责从水中去除有害物质。
3. 3. The sewage treatment process involves using chemicals to break down organic matter in the wastewater.
   污水处理过程涉及使用化学物质来分解废水中的有机物质。