engineering recuitment FCI JE 2022 Mock Test for CE/ME/EE (Phase I & II) Environmental Engineering Water Treatment Coagulation and Flocculation
What will happen when the alum is mixed with water as coagulant?
1
Decrease pH value of water
2
Increase pH value of water
3
Does not affect pH value of water
4
Increases than decreases in pH value of water
5
None of these