Patent ID: 8070961

Claim:
A device for the catalytic decarbonation of a water comprising calcium bicarbonate in solution, the device comprising: a reactor ( 1 â€²) comprising: a floor ( 3 â€²) in a lower part of the reactor, at least means for feeding the reactor with pressurized water ( 2 â€², 4 â€²) and with a decarbonation reactant ( 9 â€²) at the top surface of the floor, a bed ( 5 â€²) of inert solid particles housed in the reactor ( 1 â€²) above the floor ( 3 â€²), so that the pressurized water and the reactant pass through the reactor from the bottom upward to treat the pressurized water, at least one means for discharge ( 6 â€²) of the treated pressurized water in an upper part of the reactor ( 1 â€²) and discharge pipelines ( 7 â€² a , 7 â€² b ) that discharge the inert solid particles having a diameter at least equal to a predetermined dimension and entrained by water from the reactor, the discharge pipelines ( 7 â€² a , 7 â€² b ) emerging in the reactor, substantially at the level of the floor ( 3 â€²), via orifices flush with the floor or an internal face of side walls of the reactor and being connected to an external discharge pipe ( 8 â€²) situated at a lower level than the level of the floor, wherein the inert solid particles become coated with calcium carbonate due to the treatment of the pressurized water, wherein the discharge pipelines discharge the calcium carbonate coated inert solid particles, the discharge pipelines being rigid pipelines ( 7 â€² a , 7 â€² b ) having an internal diameter between 40 and 60 mm, and wherein, to ensure regular discharge of the particles, without risk of blockage, the discharge pipelines exhibit a downward slope uninterrupted as far as the connection thereof with an external discharge pipe ( 8 â€²), with the exception, optionally, of a horizontal part starting from the respective orifices via which the discharge pipelines emerge in the reactor ( 1 â€²).