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Calculate daily lime-soda ash requirement during softening of water (100 mg/L carbonate hardness (as CaCO3) and 100 mg/L MgSO4) (Given: Daily water production: 1000 m3/day; lime is 90% …
May 26, 2023 · The overall objective of this course is to provide the attendees with knowledge about hardness in water and the lime soda water softening process for softening water.
If soda ash dust or solution or lime slurry gets into the eyes, flush the eyes with warm water for at least 15 minutes, and consult a physician
Lime is used to remove carbonate harness, and both lime and soda ash are used to remove non-carbonate hardness. If total hardness is less than or equal to total alkalinity, there is no non …
Today's problem covers water hardness, and softening using excess lime in a two-stage system. These could be topics on either the Water Resources or the Environmental Engineering exams.
You, as a well-trained environmental civil engineer, are able to calculate the approximate concentration of CO2 knowing the pH. Be certain to define Total Hardness (TH), Carbonate …
A water softening experiment was conducted in replicate to observe the changes in parameters such as total hardness and pH with varying dosages of lime and soda ash.
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Apr 6, 2021 · Reviews and resources to help prepare for the Professional Engineering Exam (PE). Feel free to discuss how you are preparing, and what resources you are using to help you …
Assuming no excess lime is added, find correct dosages for lime (containing 90% pure CaO) and soda ash (containing 99% pure Na2CO3) required to remove all hardness.
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