engineering recuitment WBMSC Sub Assistant Engineer Civil Mock Test 2023 Environmental Engineering Water Treatment
The correct sequence of treatment processes in a water treatment plant:
1
Filtration - chlorination - sedimentation - coagulation
2
Chlorination - filtration - sedimentation - coagulation
3
Coagulation - filtration - sedimentation - chlorination
4
Coagulation - sedimentation - filtration - chlorination