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quantity of water to be treated is 2 MGD. i Estimate the total hardness, carbonate hardness and non-carbonate hardness. Determine the amount of lime and soda to soften the water to a final hardness of 95 mg1 as CACO, . Estimate the annual cost of softening if the cost of dry lime (CaO) is a dime per kilogram and cost of soda ash (Na;CO,) is 20 cents per kilogram (assume both compounds to be 90% pure). (AW: Ca-40, Mg-24.3, Na-23, C-2, 0-16) Constituent mg/l mg/l as CaCOy Ca Mg Alkalinity 112 74 150 22 se Thee

quantity of water to be treated is 2 MGD. i Estimate the total hardness, carbonate hardness and non-carbonate hardness. Determine the amount of lime and soda to soften the water to a final hardness of 95 mg1 as CACO, . Estimate the annual cost of softening if the cost of dry lime (CaO) is a dime per kilogram and cost of soda ash (Na;CO,) is 20 cents per kilogram (assume both compounds to be 90% pure). (AW: Ca-40, Mg-24.3, Na-23, C-2, 0-16) Constituent mg/l mg/l as CaCOy Ca Mg Alkalinity 112 74 150 22 se Thee

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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4. Lime and soda process is to be designed for the water analysis presented below, The quantity of water to be treated is 12 MGD. Estimate the total hardness, carbonate hardness and non-carbonate hardness. Determine the amount of lime and soda to soften the water to a final hardness of 95 moA as CaCO, Estimate the annual cost of softening if the cost of dry lime (CaO) is a dime per kilogram and cost of soda ash (Na-CO,) is 20 cents per kilogram (assume both compounds to be 90% pure). (AW: Ca-40, Mg-24.3, Na-23, C-12,0-16) acl Constituent mgl mg/las C&CO, Ca 12 Alkalinity CO2 150 Show transcribed image text
Transcribed Image Text:4. Lime and soda process is to be designed for the water analysis presented below, The quantity of water to be treated is 12 MGD. Estimate the total hardness, carbonate hardness and non-carbonate hardness. Determine the amount of lime and soda to soften the water to a final hardness of 95 moA as CaCO, Estimate the annual cost of softening if the cost of dry lime (CaO) is a dime per kilogram and cost of soda ash (Na-CO,) is 20 cents per kilogram (assume both compounds to be 90% pure). (AW: Ca-40, Mg-24.3, Na-23, C-12,0-16) acl Constituent mgl mg/las C&CO, Ca 12 Alkalinity CO2 150 Show transcribed image text
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