Compute the lime dosage needed for selective calcium-removal softening of the water described by the following analysis. What is the finished water hardness?
Ca2+ = 63 mg/l | CO32- = 208 mg/l |
Mg2+ = 15 mg/l | HCO3- = 189 mg/l |
Na+ = 20 mg/l | SO42- = 44 mg/l |
K+ = 10 mg/l | Cl- = 10 mg/l |
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