Ion exchange softening agent
Ion exchange resin softening agent in sodium cycle is a device in which there is sodium cationic resin (of strong type), causing the water hardening ions (calcium and magnesium) to be replaced with sodium resin. All these result in production of water without hardness. This sodium ion exchange with the input water cation continues until the resin needs recovery. The resin is recovered using sodium chloride solution, through which the calcium and magnesium ions entrapped in the resin lattice are replaced with salt sodium. At the end of recovery, the resin is washed with fresh water so that the extra salt is removed and the device is ready for service.
Method of choosing the softening agent
By having the consumption normal B and maximum input water as well as the softening agent capacity, based on the following table the amount of required resin plus dimensions and size of softening agent can be determined. Thus, to calculate the softening agent capacity, the following is used: GRAIN softening agent capacity = M3/HP input waterless & * PPM total hardness * HR washing cycle 45 15
