Disinfection of water results in______________?
Double filtration is used_______________?
The disinfection efficiency of chlorine increases by_______________?
The process in which the chlorination is done beyond the break point is known as_________________?
The treatment of water with bleaching powder is known as________________?
Which of the following chemical compounds can be used for dechlorination of water ?
As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is___________________?
In lime-soda process________________?
Which of the following compounds is widely used for algae control ?
The overflow rate for plain sedimentation tanks is about__________________?
