Find out the lime and soda ash dose

Reference no: EM13653159

Determine the lime and soda ash dose, in mg/L as CaCO3, to soften the following water to a final hardness of 90.0 mg/L as CaCO3.

Ca=137 mg/L as CaCO3
Mg=40.0 mg/L as CaCO3
HCO3-=197 mg/L as CaCO3
CO2=9.0 mg/L as CaCO3

Reference no: EM13653159

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