municipality treats 15x10^6 gal/day of groundwater containing the following: CO2 =17.6 mg/L, Ca2+ = 80mg/L, Mg2+ = 48.8 mg/L, Na+ = 23mg/L, Alk (HCO3-) = 270 mg/L as CaCO3, SO4 2 =125mg/L and Cl- = 35mg/L. The water is to be softened by excess lime treatment. Assume that the soda ash is 90 percent sodium carbonate, and the lime is 85 percent weight CaO. Determine the lime and soda ash dosages necessary for precipitation softening (kg/day
municipality treats 15x10^6 gal/day of groundwater containing the following: CO2 =17.6 mg/L, Ca2+ = 80mg/L, Mg2+ = 48.8 mg/L, Na+ = 23mg/L, Alk (HCO3-) = 270 mg/L as CaCO3, SO4 2 =125mg/L and Cl- = 35mg/L. The water is to be softened by excess lime treatment. Assume that the soda ash is 90 percent sodium carbonate, and the lime is 85 percent weight CaO. Determine the lime and soda ash dosages necessary for precipitation softening (kg/day
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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a municipality treats 15x10^6 gal/day of groundwater containing the following: CO2 =17.6 mg/L, Ca2+ = 80mg/L, Mg2+ = 48.8 mg/L, Na+ = 23mg/L, Alk (HCO3-) = 270 mg/L as CaCO3, SO4 2 =125mg/L and Cl- = 35mg/L. The water is to be softened by excess lime treatment. Assume that the soda ash is 90 percent sodium carbonate, and the lime is 85 percent weight CaO. Determine the lime and soda ash dosages necessary for precipitation softening (kg/day).
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