WATER TREATMENT PROCESS
The basic methods of treating municipal wastewater fall into three stages:
Primary Treatment:-
including grit removal, screening, grinding, and sedimentation.
Secondary Treatment:-
which entails oxidation of dissolved organic matter by means of using biologically active sludge, which is then filtered off; and
Tertiary Treatment:-
in which advanced biological methods of nitrogen removal andchemical and physical methods such as granular filtration and activated carbonabsorption are employed.