9-2 (15 pts) Determine the alkalinity, total hardness, carbonate hardness, and non-carbonate hardness (in mg/L CaCO3) for the water (pH 7.4) with the following chemical concentrations. Calculate the doses of lime and soda ash to soften this water. Constituent Concentration, mg/L Ca2+ 95 Mg2+ 13.5 Na 25.8 HCO3 244 SO 2- 73 CI 67.8 H2CO3 7.7

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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9-2
(15 pts) Determine the alkalinity, total hardness, carbonate hardness, and non-carbonate
hardness (in mg/L CaCO3) for the water (pH 7.4) with the following chemical concentrations.
Calculate the doses of lime and soda ash to soften this water.
Constituent Concentration, mg/L
Ca2+
95
Mg2+
13.5
Na
25.8
HCO3
244
SO 2-
73
CI
67.8
H2CO3
7.7
Transcribed Image Text:9-2 (15 pts) Determine the alkalinity, total hardness, carbonate hardness, and non-carbonate hardness (in mg/L CaCO3) for the water (pH 7.4) with the following chemical concentrations. Calculate the doses of lime and soda ash to soften this water. Constituent Concentration, mg/L Ca2+ 95 Mg2+ 13.5 Na 25.8 HCO3 244 SO 2- 73 CI 67.8 H2CO3 7.7
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