Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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One common issue with air strippers is scaling due to hardness in the water. Please design an excess lime pre-treatment step to remove the water hardness (determine the softening chemical addition rates [mass/hour] of Ca(OH)2 and Na2CO3) if the water chemistry is as follows [CO2] = 5 mg/l, [Ca2+] = 50 mg/L, [Mg2+] = 6.1 mg/L, [Na+] = 23 mg/L, [Alkalinity] = 150 mg/L and [SO42-] = 24 mg/L

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