Page 540 - Industrial Wastewater Treatment, Recycling and Reuse

510 Industrial Wastewater Treatment, Recycling, and Reuse

Clarified effluent
Raw effluent
from plant
drains Equalization tank Primary clarifier

Coagulant dosing

Sludge to sludge
dewatering systems, e.g.,
filter press, centrifuge
Polymer dosing

Figure 13.8 Primary treatment pharmaceutical API effluent.

Clarified
effluent Aeration Secondary Aeration
tank-1 clarifier-1 tank-2

Secondary Tertiary
Sand filter
clarifier-2 clarifier

Parameters Unit Concentration
pH 7–8
Activated
carbon filter TDS ppm 3000–4000
Treated effluent
COD ppm <200
BOD ppm 30–50
Coagulant &
Ammoniacal ppm <50
polymer dosing
nitrogen
Figure 13.9 Secondary treatment pharmaceutical API effluent.