Assignment:
A lime-soda softening plant treats a flow of 150 MGD, and the water has 86mg/l Ca2+, 35 mg/L Mg2+, 299 mg/L HCO3- and 6mg/l CO2. The commercial grade of quicklime has a purity of 85% and the soda ash has a purity of 95%. Determine:
a. The pounds of quicklime and soda ash required per million gallons
b. The tons of quicklime and soda ash required per month if a month is considered to be 30 days.
Provide complete and step by step solution for the question and show calculations and use formulas.