Why do we prefer to call secondary waste water treatment as biological treatment?

Why do we prefer to call secondary wastewater treatment as biological treatment?

why do we prefer to call secondary wastewater treatment as biological treatment?

Why is secondary treatment also called biological treatment?

Why is secondary waste water treatment refferred to as biological approach ?

Secondary treatment in sewage treatment is

______ is not a method of waste water treatment.

Sewage Treatment Plants (STPs) are those plants where sewage water is treated before its discharge into the rivers. Discuss the following: Why the secondary treatment is also called biological treatment?

Explain the waste water treatment process.