Electrostatic treatment of aerosols, devices and method for producing same

Abstract

The invention concerns a volume generator ( ) of chaotic electrostatic field (E), locally amplified, to subject a fluid (U) loaded with aerosol parties (P, p) to the action of an electrostatic field (E) highly variable in amplitude and orientation locally. This generator ( ) includes: an induced electrostatic module ( ), consisting of a porous dielectric material (md), two porous electrodes with electrostatic induction ( ), an electrical current source ( ), and a device for boosting the fluid. The electrostatic module ( ) consists of a three-dimensional grid system (Rxyz) having at least locally three-dimensional periodicity (or pseudo-periodicity) in at least three directions. Each grid of the system consists of an externally convex and internally concave elementary cell recessed in its center for including a compact elementary empty cellular volume (V ), that is with transverse dimensions (dx , dy , dz ) of the same order of magnitude in the three directions. Preferably, it consists of a plurality of physically and electrically interconnected fins in the form of a dodecahedral array. The generator ( ) is useful for filtering air and in chemistry.