activated sludge settling tank

例句：

1. 1. Theactivated sludge settler is anessential part of the wastewater treatment process.
   活性污泥沉降器是废水处理过程的一个关键部分。
2. 2. The activated sludge settler helps to remove pollutants fromthe wastewater.
   活性污泥沉降器有助于从废水中去除污染物。
3. 3. The activatedsludge settleris designed to efficiently treat wastewater and reduce its volume.
   活性污泥沉降器被设计用来高效地处理废水并减少其体积。