A water contains 50.40 mg · L-1 as CaCO3 of carbon dioxide, 190.00 mg · L-1 as CacO3 of Ca2+ and 55.00 mg · L-1 as CacO3 of Mg2+. All of the hardness is carbonate hardness. Using the stoichiometry of the lime soda ash softening equations, what is the daily sludge production (in dry weight, kg · day-1) if the plant treats water at a rate of 2.935 m3 · 5-1? Assume that the effluent water contains no carbon dioxide, 30.0 mg · L-1 as Caco3 of Ca2+ and 10.0 mg · L-1 as Caco3 of Mg2+. Be sure to calculate the mass of Caco3 and Mg(OH)2 sludge produced each day.
A water contains 50.40 mg · L-1 as CaCO3 of carbon dioxide, 190.00 mg · L-1 as CacO3 of Ca2+ and 55.00 mg · L-1 as CacO3 of Mg2+. All of the hardness is carbonate hardness. Using the stoichiometry of the lime soda ash softening equations, what is the daily sludge production (in dry weight, kg · day-1) if the plant treats water at a rate of 2.935 m3 · 5-1? Assume that the effluent water contains no carbon dioxide, 30.0 mg · L-1 as Caco3 of Ca2+ and 10.0 mg · L-1 as Caco3 of Mg2+. Be sure to calculate the mass of Caco3 and Mg(OH)2 sludge produced each day.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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