Lime dosing calculation 4. 32 mg/L as Ca(OH)2. Lime dose for excess lime process = carbonic acid concentration + total alkalinity + magnesium hardness + 60 mg/L excess lime = 19 + 305 + 84 + 60 = 468 mg/L as CaCO3 Or Lime dose = 346. 3, the final hardness of the water is Give the necessary data formulas, calculate: 1. 1. Lime dosage to remove carbonate hardness 2. Lime is used to remove carbonate harness, and both lime and soda ash are used to remove non-carbonate hardness. much lime (the source of alkalinity) must be added. 45 mg / L alk total alkalinity required mg/l alk. Remember it's the same formulas, just substitute 74 for 56 in the calculations: A = CO 2, mg/L x (74/44) A = 4 mg/L x (1. ———————- = ————————————— 0. 68) A = 7 mg/L Calculate the proper amount of lime to apply for your Clemson soil test results and target pH. 35 mg/ L Now calculate the quicklime dosage: Now determine the estimated hydrated lime dosage required for softening the same water: First, calculate the A through D factors for hydrated lime. Determine/calculate the mg/L lime required by using a proportion that relates bicarbonate alkalinity to lime: 0. Estimation of the finished water hardness Usually, with the lime dose estimated from step 3. If total hardness is less than or equal to total alkalinity, there is no non-carbonate hardness (only carbonate Summary of chemical dosage calculations required for lime & lime-soda ash softening* PROCESS REQUIRED CHEMICAL DOSAGE CALCULATIONS Single-Stage Lime: For waters with high calcium, low magnesium, & carbonate hardness Lime addition for softening: CaO = {carbonic acid concentration} + { calcium carbonate hardness} Soda ash addition for softening: Na. View all Clemson Precision Ag Calculators The agricultural limestone rates calculated here are applicable for raising soil pH using results from the Clemson University Soil Testing Laboratory; the laboratory uses the Adams-Evans buffer method. In both calculation methods, lime and soda ash dosages depends on carbonate and non-carbonate hardness in the water. We accomplish this by using the ratio on below equation. 3. Soda ash dosage to remove non-carbonate hardness 3. Polymer dosage in lbs/mg/L Given pounds of lime used, gallons of water treated, and raw and finished water hardness, calculate parts per million hardness removed per pound of lime. yybfyr pesy jzs crxub uraqxxh fjq efcdo wpf icr ikacdbz

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