04659476 is referenced by 2 patents and cites 7 patents.

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.

Title
Method for the treatment of liquids on granular materials
Application Number
6/797813
Publication Number
4659476
Application Date
November 13, 1985
Publication Date
April 21, 1987
Inventor
Jean Marie Rovel
Rueil Malmaison
FR
Bernard Causse
Paris
FR
Jean Burriat
Clamart
FR
Agent
Wenderoth Lind & Ponack
Assignee
Degremont
FR
IPC
B01J 49/00
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