Iron & manganese present in the polluted water is removed by __________________?

Related Mcqs:

Smog is ______________________?

A. Nothing but black smoke B. A combination of smoke and fog C. A liquid particle resulting from vapor condensation D. A solid particle e.g. fly-ash...

Presence of _____________ bacteria in water causes disease like typhoid?

A. Aerobic B. Pathogenic C. Anaerobic D. Non-pathogenic...

Lagooning process is mainly a means of the__________________?

A. Sludge disposal B. Reduction of excessive flow in sewers C. Biological treatment of wastes D. None of these...

Color test of water is done with an instrument called__________________?

A. Tintometer B. Colorimeter C. Electro-chemical cell D. Turbidimeter...

In water treatment, alum [Al2(SO4)3] is used for the process of __________________?

A. Filtration B. Coagulation C. Sedimentation D. Disinfection...