activated-sludge process

例句：

1. 1. The activatedsludge process is a common method for treating wastewater.
   活性污泥处理过程是一种常见的废水处理方法。
2. 2. The activated sludge process is widely used in wastewater treatment plants.
   活性污泥处理过程在废水处理厂中被广泛使用。
3. 3. The activated sludge process helps to remove pollutants from the water and improve its quality.
   活性污泥处理过程有助于从水中去除污染物并改善水质。