Floating bed reactor

Details Floating bed reactor Floating bed reactor

1984-11-16

1986-09-16

Wyse, Thomas

Liquid purification or separation

Plural chambers with movement of granules therebetween

210269, 210618, 210786, B01D 4102, C02F 306

Patent

active

046121153

ABSTRACT:
The present invention concerns a floating bed reactor which is used for biological purification of fibre-containing liquid suspensions and for simultaneous clarification. The reactor comprises a floating bed (8) composed of finely divided particles floating in an ascending flow, above it being formed a fibre agglomerate layer (9) which binds to itself fibres present in the suspension being treated. What is essential in the invention is that the removal of fibre agglomerate from the reactor has been arranged with the aid of an open-top collecting vessel (11) placed in the reactor and disposed to collect fibre agglomerate in itself so that the top margin of the agglomerate layer (9) positions itself in the reactor substantially on level with the top end of the collecting vessel. The agglomerate then moves into the collecting vessel (11) by effect of a trailing vortex, for the generation of which the top end (13) of the vessel is bordered by a flow guiding member projecting laterally therefrom, or encircling it. The reactor of the invention is particularly suitable for treating cellulose fibre-containing effluents of the wood processing industry.

REFERENCES:
patent: 3082165 (1963-03-01), Kroeper et al.
patent: 3802567 (1974-04-01), Kunz
patent: 4052300 (1977-10-01), Mosso
patent: 4105549 (1978-08-01), Kakumoto et al.
patent: 4197201 (1980-04-01), Hjelmner et al.
patent: 4478726 (1984-10-01), Moore
patent: 4479880 (1984-10-01), Treanor

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