Abstract: Apparatus for removing a wide variety of differing solid and aerosol waste materials from effluent or exhaust streams produced by an industrial process. This invention may be especially useful as a pre- or post-conditioner of the effluent to prevent plugging in any number of available pollution control devices. More particularly, a rotating pack bed filter removes solid and aerosol waste materials, if present, from an effluent and simultaneously regenerates the filter media by (1) heating to thermally decompose the collected material trapped in the filter media into a residue and to drive off gaseous pollutants carried by the collected material and (2) cleaning to remove the residue from the media.

Abstract: An incineration apparatus is provided, preferably of the thermal heat regeneration type, in which noxious or other gases are passed to an incineration chamber, to be burnt at a sufficiently high temperature that they are disposed of, and in doing so, pass through heat-exchange beds of elements such as stones or the like, whereby the direction of gas flow may optionally be reversed. The stoneware beds reside in recovery chambers adjacent but contiguous with the combustion chamber, separated therefrom by built-up refractory blockwalls. The walls are of arcuate configuration and support the heat-retention elements in the recovery chambers. The walls are generally the thickness of a single refractory block, and are of a radius that is less than any radius of the combustion chamber and are of a sufficient radius such that the forces of the stone or other heat-retention elements outside the walls may be resisted to prevent wall collapse.