In lime-soda process
A. Only carbonate hardness is removed
B. Only noncarbonated hardness is removed
C. Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness
D. Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness
Answer: Option C
Related Questions on Environmental Engineering
The distribution mains are designed for
A. Maximum daily demand
B. Maximum hourly demand
C. Average daily demand
D. Maximum hourly demand on maximum day
Sewage treatment units are designed for
A. Maximum flow only
B. Minimum flow only
C. Average flow only
D. Maximum and minimum flow
A. 4.5 to 6.0
B. 6.5 to 8.0
C. 8.5 to 10.0
D. 10.5 to 12.0
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