Device and method for the treatment of contaminated media
AssigneeGefle Virvelteknik AB
InventorRolf Ahlström
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Abstract
The invention relates to an apparatus for the treatment of contaminated media, comprising a rotatable housing having at least one inlet (28) for gas emerging in the stirrer housing, and at least one suction opening (10; 32) for the medium to be treated. The housing is provided with a plurality of outlet openings (25; 27) arranged along its periphery. A plurality of vanes (22; 23) are arranged in the outlet openings (25; 27). A rotation transferring means (24) is provided to transfer a rotational movement to the stirrer. A method according to the invention comprises generating a vortex in the medium in such a way that an under-pressure occurs in the center of the vortex, and that a nitrogen containing gas is introduced in the center of the vortex.
Claims17
An apparatus for the treatment of contaminated media, the apparatus comprising:
- a rotatable housing having at least one inlet for gas and at least one suction opening for the medium to be treated;
- a number of outlet openings arranged along a periphery of the housing;
- a number of vanes arranged in the outlet openings;
- a shaft connected to the housing and connectable to a device for causing rotation of the housing;
- and
- wherein the housing comprises at least one compartment, the at least one compartment being essentially shaped as a truncated cone, the at least one suction opening for the medium to be treated being at the apex of the cone and the outlet openings being at the base thereof.
A method of treatment of a contaminated medium containing organic material, the method comprising:
- providing a rotatable cone-shaped housing having an inlet and an outlet for the medium to be treated;
- immersing the housing in the medium to be treated;
- rotating the housing such that a vortex is generated therein;
- and
- supplying gas to the center of the vortex.
Dependencies are inferred from the claim text.