softener Calculation.pptx

Brine Calculator

1. Softener Calculation:   Calculation for Resin Qty = Feed Water Hardness in ppm X Qty of Water in m3 Exchange Capacity of Resin   Exchange Capacity of Cation Resin is normally 55%   So the formula can be utilized as under:   Hardness in ppm X Qty of Water in M3 = Resin Qty in Liter X Exchange Cap of Resin   If you have softener having 2000Ltr of Resin and Raw Water Hardness in 150ppm as CaCO3 then what should the OBR.   150 X OBR in m3 = 2000 Liter X 55 OBR in m3 = 2000 Liter X 55 / 150 = 733 m3.   Regeneration:   150gms of NaCl (Common Salt –available NaCl is 50%) is required to regenerate 01Ltr of Resin. So to regenerate 2000Ltr of Resin you need 2000 x 150 /1000 = 300Kgs of Common Salt   Qty or water required for solution preparation:   Generally regeneration is performed using 10% Common Salt (Having 50% NaCl ) solution so you need 3000Ltr of water.   This Qty has to be injected in 20-30Min time and then provide slow rinse to 30 – 40 min and then provide fast rinse until you get <05ppm of Hardness.