Assignment:
A source of water supply water with a Cationic content ( and Anionic content also ) of 123.75 ppm of CaCO3, and a Silica content ( SiO2 ) of 55.6 ppm of CaCO3.
The water will be treated using a demineralizer that has two ionic exchange resins : the Anionic and the Cationic ones. The first has a capacity of 11.25 Kgrains per cubic feet of resin. The second one has a capacity of 13.67 Kgrains per cubic feet
We need an operational time of 12 hours before resins exhaustion, with a service water flow of 1200 GPM.
Calculate the amount of both resins ( on cubic feet ) for this service conditions.
