That is what we do with all sewerage. It is basically the point of a sewage treatment plant. The very places that due to the water companies refusing to invest in them. But instead paying out huge dividends to share holders. Are now overloading and chucking shit into our rivers.
Yes we should build more of them. Yes we should be arempting new technologies.
But if the water co,panies after 40 plus tears have not invested in doing so.
We also should be taking them back into public hands before spending more money on them. Cos hell they are not capable of managing the money themselves.