In a rotary drum for thickening pulp, the rotary drum may include drainage channels for delivering filtrate from a pulp mat on the rotary drum to a filtrate chamber at an end of the rotary drum, and includes a flat face valve and plenum chamber assembly in the filtrate chamber. The flat face valve can be juxtaposed against drainage outlets of the drainage channels, wherein the flat face valve does not block the drainage outlets during a majority of the rotation of the rotary drum. An opening on the flat face valve may extend through the front surface and be aligned with the drainage outlets to provide a fluid passage through the flat face valve and to a plenum chamber behind the flat face valve such that air in the filtrate is collected in the upper portion of the plenum chamber and removed from the rotary drum.

In a rotary drum for thickening pulp, the rotary drum may include drainage channels for delivering filtrate from a pulp mat on the rotary drum to a filtrate chamber at an end of the rotary drum, and includes a flat face valve and plenum chamber assembly in the filtrate chamber. The flat face valve can be juxtaposed against drainage outlets of the drainage channels, wherein the flat face valve does not block the drainage outlets during a majority of the rotation of the rotary drum. An opening on the flat face valve may extend through the front surface and be aligned with the drainage outlets to provide a fluid passage through the flat face valve and to a plenum chamber behind the flat face valve such that air in the filtrate is collected in the upper portion of the plenum chamber and removed from the rotary drum.

A combined hopper and shaker assembly which can be used at least in processing excavation or other remains. The assembly features a hopper that can be pivoted (through operation of a hoist/sling) to cause the contents of the hopper to be fed via gravity through an exit chute onto the shaker. The hopper includes splash guards or sidewalls on the portions thereof that are proximate the pivot axis and an internal shape along the exit chute so as to guide the contents of the hopper toward the exit chute.

A combined hopper and shaker assembly which can be used at least in processing excavation or other remains. The assembly features a hopper that can be pivoted (through operation of a hoist/sling) to cause the contents of the hopper to be fed via gravity through an exit chute onto the shaker. The hopper includes splash guards or sidewalls on the portions thereof that are proximate the pivot axis and an internal shape along the exit chute so as to guide the contents of the hopper toward the exit chute.

An indoor growing facility includes a grow zone configured for growing crops and an air handling apparatus comprising a supply plenum wall at one end of the grow zone, and a return plenum wall at an opposite end of the grow zone. The return plenum wall may include intake openings that vary in size to create variable suction. The indoor growing facility may also include an irrigation system that includes an irrigation skid coupled to a supply tank, fertigation apparatus, and the grow zone. The indoor growing facility may also include a filtration system comprising an ozone apparatus, a regenerative filter apparatus, and a drum filter apparatus.

An indoor growing facility includes a grow zone configured for growing crops and an air handling apparatus comprising a supply plenum wall at one end of the grow zone, and a return plenum wall at an opposite end of the grow zone. The return plenum wall may include intake openings that vary in size to create variable suction. The indoor growing facility may also include an irrigation system that includes an irrigation skid coupled to a supply tank, fertigation apparatus, and the grow zone. The indoor growing facility may also include a filtration system comprising an ozone apparatus, a regenerative filter apparatus, and a drum filter apparatus.

A floating suction head assembly for use with a hose, for drawing liquid into the hose. The assembly includes a float assembly, a gusset member coupled to the float assembly and a strainer assembly rotatably mounted to the gusset member. The strainer assembly has a coupling portion for coupling to a hose. The strainer assembly is rotatable relative to the gusset member and the float assembly about a central longitudinal axis defined by the strainer assembly. The strainer assembly includes a strainer cage defining an interior cavity, and a strainer cartridge selectively disposable in the interior cavity and retained therein. The strainer cartridge has a generally cylindrical configuration and rotates about the central longitudinal axis of the strainer assembly. The strainer cartridge includes a corrugated exterior surface including bent portions forming alternating furrow and ridge portions substantially about the circumference of the strainer cartridge.

A rotary drum for thickening pulp from a slurry, the drum including drainage channels delivering filtrate from a pulp mat on an outer surface of the rotary drum to at least one filtrate chamber at an end of the rotary drum, a flat face valve and plenum chamber assembly in the filtrate chamber. The flat face valve juxtaposed against drainage outlets of the drainage channels, wherein the flat face valve does not block the drainage outlets during a majority of the rotation of the rotary drum. At least one opening on the flat face valve extending through the front surface and aligned with the drainage outlets to provide a fluid passage through the flat face valve and to a plenum chamber behind the flat face valve such that air in the filtrate is collected in the upper portion of the plenum chamber and removed from the rotary drum.

A rotary drum for thickening pulp from a slurry, the drum including drainage channels delivering filtrate from a pulp mat on an outer surface of the rotary drum to at least one filtrate chamber at an end of the rotary drum, a flat face valve and plenum chamber assembly in the filtrate chamber. The flat face valve juxtaposed against drainage outlets of the drainage channels, wherein the flat face valve does not block the drainage outlets during a majority of the rotation of the rotary drum. At least one opening on the flat face valve extending through the front surface and aligned with the drainage outlets to provide a fluid passage through the flat face valve and to a plenum chamber behind the flat face valve such that air in the filtrate is collected in the upper portion of the plenum chamber and removed from the rotary drum.

A liquid solid separator has a main container wherein a rotating filter belt receives influent for liquid sold mixture sieve processing. A filtered water collections tank, a pressurized water supply are sources of wash water inputs. Cold and hot water pressurized water supplies are also potential supply sources. Load balancing of inputs and single and dual wash water pumps are also described.