Question

32. Describe how the following are used during wastewater treatment .
a) Grit tank
b) Settling tank
c) Aeration tank
d) Chemical treatment tank​

Answer 1

Answer:

At the simplest level, treatment of sewage and most wastewaters is carried out through separation of solids from liquids, usually by sedimentation. By progressively converting dissolved material into solids, usually a biological floc, which is then settled out, an effluent stream of increasing purity is produced.