LS Numericals.pptxkjejlhvrltj;gdf;gjdz;of'hps

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1. Numerical based on Hardness, EDTA method and Lime Soda Process Problem1 : A sample of water on analysis was found to contain: Ca(HCO)3 = 4mg/L Mg(HCO)3 = 6mg/L CaSO4 = 8mg/L MgSO4 = 10mg/L Calculate the Temporary, Permanent and Total hardness of water in ppm , ᴼFr & ᴼCL

2. Problem2 : Calculate the amount of Lime (84%pure) and soda (92% pure) required for treatment of 20,000 liters of water whose analysis is as follows: Also calculate temporary and permanent hardness of the water sample.

3. Problem 3 : Calculate the requirement of Lime and Soda for seftening 25,000 litres of water from the following analytical data:

4. Problem 4 : Calculate the quantities of lime and soda required for cold softening of 2,00,000 liters of water using 16.4ppm of sodium aluminate as coagulant. The result of the analysis of raw water and softened water is as follows :

5. Problem 5: