3.3 If an ion exchange water softener has 0.2 m of ion-exchange resin with an exchange capacity of 75 kg/m'. The occupants use 2500 gallon/day of water per day. If the water contains 250 mg/L of hardness as CaCO3 and it is desired to soften it to 90 mg/L as CaCO3, what is the time between
3.3 If an ion exchange water softener has 0.2 m of ion-exchange resin with an exchange capacity of 75 kg/m'. The occupants use 2500 gallon/day of water per day. If the water contains 250 mg/L of hardness as CaCO3 and it is desired to soften it to 90 mg/L as CaCO3, what is the time between
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:3.3 If an ion exchange water softener has 0.2 m of ion-exchange resin with an exchange capacity of 75
kg/m'. The occupants use 2500 gallon/day of water per day. If the water contains 250 mg/L of
hardness as CaCO3 and it is desired to soften it to 90 mg/L as CACO3, what is the time between
b) 14 days
regeneration? a) 15 days
c) 12 days
d) 10 days
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