Ihatemath3234 Ihatemath3234

03-11-2021
Geography

contestada

name three system for treating sewage before it flow out through waterway.

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matthewmartinez1129 matthewmartinez1129

03-11-2021

Answer:

There are three basic biological treatment methods: the trickling filter, the activated sludge process, and the oxidation pond. A fourth, less common method is the rotating biological contacter.

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