During waste water treatment, trickling filter is used for :

In integrated waste water treatment cleaning occurs in

During sewage treatment, methanogens are used in

During sewage treatment, methanogens are used in

Explain the waste water treatment process.

Assertion:- During integrated waste water treatment in town of Arcata cleaning process occurs in two stages. Reason: In first step dissovled heavy metals are removed and in second stage conventional sedimentation, filleration and chlorine treatments are given.

Assertion:- During integrated waste water treatment in town of Arcata cleaning process occurs in two stages. Reason: In first step dissovled heavy metals are removed and in second stage conventional sedimentation, filleration and chlorine treatments are given.

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

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