A commercial laundry is considering constructing an ion exchange process to remove hardness from the water. The flow required is 1000 m³/day and they use city water which contains 200 mg/l as CaCO3 of calcium and 100 mg/l as CACO3 of magnesium. Total hardness should be reduced to 80 mg/l as CaCO3. The resin has a Total Hardness (TH) capacity of 60 kg TH/m³ of media and the recommended hydraulic loading rate is 0.5 m³/min-m². (a) What is the water flow rate (m³/d) that need to be treated ? (b) What is the total daily resin volume (m³) required to soften the water? And (c) What is the area of

A commercial laundry is considering constructing an ion exchange process to remove hardness from the water. The flow required is 1000 m³/day and they use city water which contains 200 mg/l as CaCO3 of calcium and 100 mg/l as CACO3 of magnesium. Total hardness should be reduced to 80 mg/l as CaCO3. The resin has a Total Hardness (TH) capacity of 60 kg TH/m³ of media and the recommended hydraulic loading rate is 0.5 m³/min-m². (a) What is the water flow rate (m³/d) that need to be treated ? (b) What is the total daily resin volume (m³) required to soften the water? And (c) What is the area of

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

7. A commercial laundry is considering constructing an ion exchange process to remove
hardness from the water. The flow required is 1000 m/day and they use city water which
contains 200 mg/l as CaCO3 of calcium and 100 mg/l as CACO3 of magnesium. Total
hardness should be reduced to 80 mg/l as CaCO3. The resin has a Total Hardness (TH)
capacity of 60 kg TH/m³ of media and the recommended hydraulic loading rate is 0.5
m/min-m2. (a) What is the water flow rate (m/d) that need to be treated ? (b) What is the
total daily resin volume (m') required to soften the water? And (c) What is the area of
exchanger bed needed.

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