how is sewer water treated? what’s the process it goes through?

Question

is it done mechanically or by people?

In: 27

Answer 1

It goes through a series of filters. Larges ones then incrementally smaller ones to catch various size particles. From there chemicals are added. Some are added to break the surface tension and any suspended material settles to the bottom. Then stuff like chlorine to kill any bacteria. I’m sure there are some detailed videos on YT