Liquid purification or separation – Processes – Utilizing electrical or wave energy directly applied to...
Patent
1989-11-07
1991-11-05
Nozick, Bernard
Liquid purification or separation
Processes
Utilizing electrical or wave energy directly applied to...
210332, 55292, B01D 1706
Patent
active
050629654
ABSTRACT:
The filtration apparatus comprises a bundle of porous filtering elements (12) which are disposed over a certain length of a casing (2) and over a substantial part of its cross-section, and at least one assembly of ultrasonic transducers (15) disposed in at least one cross-sectional plane of the casing regularly spaced at its periphery. Each of the transducers is placed within an opening passing through the casing in a direction perpendicular to the axis of the casing. Ultrasonic waves are emitted within the casing in the direction of the bundle of filtering elements in a zone delimited by a cone, the axis of which extends in a direction perpendicular to the filtering elements and the vertex of which is located in the vicinity of the wall of the casing. The particles torn out by the ultrasonic waves from the filtering elements are recovered by an evacuation conduit (8). The invention is applicable, in particular, to the treatment of fluid used in the nuclear industry, and of other dangerous products.
REFERENCES:
WO89/05184 published 6/15/89, Laiho et al.
Bernou Jean-Louis
Dufau Frederic
Geahel Isabelle
Hache Jean
Bertin & Cie
Framatome
Nozick Bernard
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