Q.

Chemical method of treatment is used for treatment of:

A. diissolve gases
B. carbonate and carbon dioxide
C. bacterial impurities
D. send and suspended materials
Answer» B. carbonate and carbon dioxide
Explanation: chemical treatment involvs line treatment, soda treatment, lime and soda treatment. zeolite treatment and demineralisation. iime treatment is done for treatment of carbonate hardness, carbon dioxide in water. soda treatment is done for treatment of water containing non carbonate hardness and line soda treatment is used when both carbonate and none carbonate hardness for feed water.
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