Patent ID: 11897800
Assignee: RDP TECHNOLOGIES, INC.
Field: Environmental technology (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A process for softening water, the process comprising:
providing a fluidized bed pellet reactor for softening hard water, the reactor comprising:
a seed storage tank for storing fine sand for use as crystallization seeds,
a reactor tank for containing a fluidized bed of pellets,
an inflow pump for pumping inflow fluid, the fluid having a pH, to be treated into the reactor tank to fluidize the bed of pellets,
a reagent storage tank for storing a chemical reagent for adjusting the pH of the fluid in the reactor tank,
means for delivering seed from the seed storage tank to the reactor tank,
means for delivering reagent from the reagent storage tank to the reactor tank,
means for withdrawing pellets from the reactor tank, and
means for measuring the weight of the reactor tank, the reactor tank having contents, and the contents of the reactor tank;
the process further comprising:
mixing a predetermined weight of seed with a predetermined volume or weight of water in the seed storage tank to form a mixture of the seeds and water;
filling the reactor tank with a predetermined volume of water;
transferring a predetermined amount of the mixture of the seeds and water from the seed storage tank to the reactor tank;
pumping the inflow liquid to be treated into the reactor tank to create a fluidized bed;
delivering the chemical reagent from the reagent storage tank to the reactor tank to crystallize the calcium ions as calcium carbonate on the seeds to form pellets;
maintaining density of the fluidized bed at a predetermined optimum density;
withdrawing treated water as an effluent from the reactor tank;
withdrawing the pellets from the reactor tank.