The hardness of a ground water sample was found to be 420 mg/L as CaCO3. A softener containing ion exchange resins was installed to reduce the total hardness to 75 mg/L as CaCO3 before supplying to 4 households. Each household gets treated water at a rate of 540 L/day. If the efficiency of the softener is 100%, the bypass flow rate (expressed in L/day) is_

Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter5: Separation Processes
Section: Chapter Questions
Problem 5.30P
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The hardness of a ground water sample
was found to be 420 mg/L as CaCO3. A
softener containing ion exchange resins
was installed to reduce the total hardness
to 75 mg/L as CaCO3 before supplying to
4 households. Each household gets
treated water at a rate of 540 L/day. If the
efficiency of the softener is 100%, the
bypass flow rate (expressed in L/day) is_
Transcribed Image Text:The hardness of a ground water sample was found to be 420 mg/L as CaCO3. A softener containing ion exchange resins was installed to reduce the total hardness to 75 mg/L as CaCO3 before supplying to 4 households. Each household gets treated water at a rate of 540 L/day. If the efficiency of the softener is 100%, the bypass flow rate (expressed in L/day) is_
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