Method for the treatment of liquids on granular materials

Details Method for the treatment of liquids on granular materials Method for the treatment of liquids on granular materials

1985-11-13

1987-04-21

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210678, B01J 4900

Patent

active

046594760

ABSTRACT:
A method for the treatment of liquids containing particles in suspension, by percolation of the liquid from top to bottom through a bed of granular material, notably of a ion exchanger resin, includes treatment cycles of the liquid and regeneration cycles of the resin, preceded by decompaction and washing operations, carried out in the same enclosure the inner space of which is divided into two superimposed compartments in mutual communication. The lower compartment is totally filled with granular material and the upper compartment is partly filled with granular material. The decompaction and washing operations of the granular material contained in the enclosure upper compartment are carried out periodically prior to each regeneration cycle by expanding the granular material by means of a current of liquid flowing from bottom to top.

REFERENCES:
patent: 3617558 (1971-11-01), Jones
patent: 3719591 (1973-03-01), Crits
patent: 3960721 (1976-06-01), Heskett
patent: 4260426 (1981-04-01), Werfelman
patent: 4326963 (1982-04-01), Watson et al.

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