Q. The temperature at which the softening of water takes place by lime soda process is ____________

View solution

Q. Which chemical is used for removing the permanent hardness of Calcium chloride?

View solution

Q. Softening chemicals, lime and soda do not depend on ____________

View solution

Q. The detention period of a lime soda treatment plant is ____________

View solution

Q. The minimum reaction time allowed in the recarbonation basin is ____________

View solution

Q. What is the pH at which recarbonation should be done?

View solution

Q. Which filter is normally used in the lime soda treatment plant?

View solution

Q. What is the detention time of a water softening accelerator?

View solution

Q. The sludge in water softening accelerator is deposited at ____________

View solution

Q. In which process of water softening, ion exchange phenomenon takes place?

View solution

Q. In which process of water softening, the chemicals are added to remove hardness from water?

View solution

Q. Zeolites are complex compound of ____________

View solution

Q. The color of the artificial zeolite permutit is ____________

View solution

Q. Natural zeolite is mainly processed from ____________

View solution

Q. The color of the natural zeolite is ____________

View solution

Q. The chemical formula of Permutit is ____________

View solution

Q. Permutit has an exchange value of ________ grams of hardness per m³ of zeolite.

View solution

Q. The thickness of the layers of filter sand of zeolite softener is ____________

View solution

Q. Which of the following is a disadvantage of the zeolite process?

View solution

Q. The zeolite process is unsuitable for water containing iron and manganese.

View solution