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Physical Treatment and biological treatmenent
Primary treatment
secondary treatment
tertiary treatment
HI,
You can also say biological & non-biological. Biological type is more for biodegradable waste (of course), such as domestic waste. Non-bio is based on chemical reactions, normally for industrial waste. I think physical treatment like crushing & filtering, normally it comes as a pretreatment process for the main bio/non-bio process.
If you are looking for the common types of treatments, its commonly1) Physical Treatment2) Chemical Treatment and3) Biological treatment