A method for disposing of a mixture of oxidizable catalyst material and inert support media. The method comprises introducing inert gas into an enclosure. The enclosure contains a plurality of stacked screens, the stacked screens have openings that decrease in size from a top of the stack to a bottom of the stack. The method also comprises introducing the mixture to an uppermost one of the plurality of stacked screens; moving the plurality of stacked screens to cause the oxidizable catalyst material to separate from and migrate to a location beneath the inert support media; conveying the separated inert support media to a location outside the enclosure for disposal as non-hazardous waste; and conveying the separated oxidizable catalyst material to a location outside the enclosure for at least one of reclamation, or thermal destruction.

A continuous sieving apparatus is described. The continuous sieving apparatus includes an inclined sieve surface attached to a wall. The inclined sieve surface is inclined with respect to a horizontal axis for pupae to continuously flow across down the incline. A set of openings is formed in the sieve surface so as to define a set of pathways extending through the sieve surface. The set of opening are defined by a length dimension that is greater than a width dimension. When the inclined sieve surface is submerged in a liquid, a first pupa having a first cephalothorax width that is less than the width dimension is free to move through any one of the set of openings, and a second pupa having a second cephalothorax width that is greater than the width dimension is prevented from moving through the set of openings.

A continuous sieving apparatus is described. The continuous sieving apparatus includes an inclined sieve surface attached to a wall. The inclined sieve surface is inclined with respect to a horizontal axis for pupae to continuously flow across down the incline. A set of openings is formed in the sieve surface so as to define a set of pathways extending through the sieve surface. The set of opening are defined by a length dimension that is greater than a width dimension. When the inclined sieve surface is submerged in a liquid, a first pupa having a first cephalothorax width that is less than the width dimension is free to move through any one of the set of openings, and a second pupa having a second cephalothorax width that is greater than the width dimension is prevented from moving through the set of openings.

Bulk material cleaner (1) comprising a support frame (2) and a screen housing (3), which can be oscillated and/or vibrated by a drive (5). At least one screen (6) is arranged in the screen housing (3). The screen housing has a feed opening (7) and at least two outlet openings (8, 9), the outlet openings (8, 9) being for a first fraction (F1) and a second fraction (F2), respectively. Moreover, the bulk material cleaner (1) comprises an air separator (10), which is only fastened on the screen housing (3).

Bulk material cleaner (1) comprising a support frame (2) and a screen housing (3), which can be oscillated and/or vibrated by a drive (5). At least one screen (6) is arranged in the screen housing (3). The screen housing has a feed opening (7) and at least two outlet openings (8, 9), the outlet openings (8, 9) being for a first fraction (F1) and a second fraction (F2), respectively. Moreover, the bulk material cleaner (1) comprises an air separator (10), which is only fastened on the screen housing (3).

Apparatus (200) for sorting mixed waste materials, comprising: a housing (260) configured to be vibrated to assist sorting; a screen (210) supported by the housing (260) and having an inlet end (212) for receiving waste materials and an outlet end (214) for discharging at least some waste received at the inlet end (212), the screen (210) comprising at least one portion (220) pivotally coupled adjacent the inlet end (212) to a substantially horizontal axle (222) mounted in the housing (260); and drive means (224,228) configured to pivot the at least one portion (222) of the screen (210) about the axle (222) with a controlled reciprocating action.

Apparatus (200) for sorting mixed waste materials, comprising: a housing (260) configured to be vibrated to assist sorting; a screen (210) supported by the housing (260) and having an inlet end (212) for receiving waste materials and an outlet end (214) for discharging at least some waste received at the inlet end (212), the screen (210) comprising at least one portion (220) pivotally coupled adjacent the inlet end (212) to a substantially horizontal axle (222) mounted in the housing (260); and drive means (224,228) configured to pivot the at least one portion (222) of the screen (210) about the axle (222) with a controlled reciprocating action.

The concepts, systems and methods described herein are directed towards a device sifting soils. The device is provided to including: a frame having open areas at top, bottom, and rear side; a plurality of wheels coupled to the frame; a first screen coupled to the frame, wherein the first screen has a grid to receive material for sifting; a vibrating unit coupled to the first screen, wherein the vibrating unit is configured to vibrate the first screen such that small objects and dirt in the material pass through the screen and the open areas of the frame and the large objects in the material fall off from the first screen at a first side of the sifting device; and a tow hitch to be coupled to a vehicle, the vehicle pulling the sifting device using the tow hitch.

The concepts, systems and methods described herein are directed towards a device sifting soils. The device is provided to including: a frame having open areas at top, bottom, and rear side; a plurality of wheels coupled to the frame; a first screen coupled to the frame, wherein the first screen has a grid to receive material for sifting; a vibrating unit coupled to the first screen, wherein the vibrating unit is configured to vibrate the first screen such that small objects and dirt in the material pass through the screen and the open areas of the frame and the large objects in the material fall off from the first screen at a first side of the sifting device; and a tow hitch to be coupled to a vehicle, the vehicle pulling the sifting device using the tow hitch.

A continuous sieving apparatus is described. The continuous sieving apparatus includes an inclined sieve surface attached to a wall. The inclined sieve surface is inclined with respect to a horizontal axis for pupae to continuously flow across down the incline. A set of openings is formed in the sieve surface so as to define a set of pathways extending through the sieve surface. The set of opening are defined by a length dimension that is greater than a width dimension. When the inclined sieve surface is submerged in a liquid, a first pupa having a first cephalothorax width that is less than the width dimension is free to move through any one of the set of openings, and a second pupa having a second cephalothorax width that is greater than the width dimension is prevented from moving through the set of openings.