04818393 is referenced by 2 patents and cites 12 patents.

An apparatus for the anaerobic treatment of waste water, including in a same closed enclosure, under a gas pressure, a fermentation zone and a decantation zone, with internal recycling of the slurries from the decantation zone to the fermentation zone, made of at least two attached identical cells in mutual communication. The two cells operate alternately and reciprocally as a fermentation cell and as a decantation cell. Each cell is fitted out, in order to be fed while it operates as a decantation cell, with a gas-lift transfer device with two branches, one of the branches opening into the cell which is attached to that where it is placed.

Title
Apparatus for the anaerobic treatment of waste water
Application Number
6/927183
Publication Number
4818393
Application Date
November 5, 1986
Publication Date
April 4, 1989
Inventor
Roger Nicol
Issy les Moulineaux
FR
Jean Durot
Villepreux
FR
Agent
Sandler & Greenblum
Assignee
Degremont
FR
IPC
B01D 21/24
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