Patent ID: 6194198
Filing Date: 2001-02-27
Classification: B01D,C02F,Y02A,Y02W

Abstract:
A device for purifying a gas or liquid medium comprising:a substantially cylindrical chamber;a tube centrally located along a central axis of the chamber;an inlet for leading the medium into the chamber;an outlet for leading the medium out of the chamber;at least one rolled-up mat situated in the chamber and on the tube so that the medium passes through the at least one mat, the at least one mat comprising a foamed plastic filter material in which microorganisms are employed, the filter material having open pores, the at least one mat fittingly slid in the chamber;at least one strip of relatively rigid material extending circumferentially and supporting an end of the at least one rolled-up mat; andsupport rods extending radially to the tube and supporting the at least one strip.