Question

Give reason addition of a l u m purifiers the water

Answer 1

Aluminium sulfate, shortly known as alum,when added to raw water reacts with the bicarbonate alkalinities presents in water and forms a gelatinous precipitate.this floc attracts other fine particles and suspended material in raw water,and Settles down at the bottom of the container

Answer 2

Answer:

Aluminium sulfate, shortly known as alum,when added to raw water reacts with the bicarbonate alkalinities presents in water and forms a gelatinous precipitate.this floc attracts other fine particles and suspended material in raw water,and Settles down at the bottom of the container