Method for the cyclic regeneration of water-softening systems an

Details Method for the cyclic regeneration of water-softening systems an Method for the cyclic regeneration of water-softening systems an

1980-12-05

1983-04-05

Cintins, Ivars C.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210678, 210687, 210 86, 210 89, 210 961, 210105, 210140, 210141, 210191, C02F 142

Patent

active

043790577

ABSTRACT:
Ion exchange medium in a water softening system is regenerated cyclically, in response to both a preset timer and a metering device responsive to the degree of hardness of the untreated water and the degree of exhaustion of the ion exchange medium, by slowly feeding regenerating medium, prepared during the softening phase by the metering device, counter current to flow during softening at a rate so as not to disturb the exchange medium and to prevent substantial mixing of the regenerating medium with the water being displaced.

REFERENCES:
patent: 3687843 (1972-08-01), Emmett
patent: 4104158 (1978-08-01), Davis
patent: 4237538 (1980-12-01), Le Dall
patent: 4275448 (1981-06-01), Le Dall

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