Abstract: Method and apparatus for treating sewage to reduce total solids content. Involves separating sewage sludge from sewage liquid, dewatering and compressing the sludge, subjecting the sludge to microwave radiation to reduce sludge to ash-like residue, and adding the residue back to the sewage liquid. Optionally, to sterilize the sludge liquid with chemicals or ultraviolet light.

Abstract: A jack-up unit for use in a body of water, said unit comprising a floatable hull, a plurality of legs, said legs being suitable for contacting a solid surface and for supporting said hull in an elevated position relative to the surface of said body of water, each of said legs including at least one longitudinally extending leg gear rack, means for moving said hull longitudinally relative to said legs for establishing said hull at a desired height relative to said legs, a guidance system on each leg comprising an upper guide member configurative around said leg at a close tolerance interval and a lower guide member configurative around said leg at a close tolerance level, and a plurality of gear rack sections located one proximate each leg intermediate said upper guide member and said lower guide member, each gear rack section moveable into and out of toothed engagement with said leg gear rack section on its respective leg, said toothed engagement including a gear tooth backlash in excess of said close toleran

Abstract: The present disclosure is directed to a sewage disposal system having a central aeration chamber flanked on each side by a pair of biological filters each containing tiers of buoyant plastic hollow spheres through and over which the liquid from the aeration chamber flows upwardly and the filters are connected at the top by a crossover pipe positioned below the top level of sludge in the aeration chamber. The crossover pipe communicates with a vertical riser which functions with a vertical antisyphon vent. The riser communicates with a flexible hose which connects the primary central aeration chamber with the chlorine contact tank to receive the sludge from the biological filters for chlorinating the liquid and providing an adequate retention time for disinfection prior to discharge overboard.

Abstract: The present disclosure is directed to a method and apparatus for reducing eddy currents in a clarifier to restrict sludge from entering the clear water zone of the clarifier by periodically pulsing air to the sludge return line from the bottom of the clarifier to the top of the aeration chamber in a sewage treatment plant of both the land base and marine type.

Abstract: The present disclosure is directed to a sewage treatment device of the marine type and operates on an extended aeration principle employing an aerator, clarifier and disinfector. The clarifier is disposed beneath the aerator and the top of the clarifier with a common wall therebetween which forms the bottom of the aerator. A first passage conducts fluid from the aerator to the clarifier and has a central port in the common wall. A second passage conducts fluid from the clarifier to the disinfector. The aerator has an influent inlet and the disinfector has an effluent outlet.The treator includes in the aerator vessel nozzle means for admitting air to the vessel in a direction to cause fluid in the vessel to move orbitally about a vertical axis with the nozzle means being disposed at a level proximate the common wall between the aerator and clarifier.

Abstract: The present disclosure is directed to a sewage treatment device of the marine type and operates on an extended aeration principle employing an aerator, clarifier and disinfector. The clarifier is disposed beneath the aerator and the top of the clarifier with a common wall therebetween which forms the bottom of the aerator. A first passage conducts fluid from the aerator to the clarifier and has a central port in the common wall. A second passage conducts fluid from the clarifier to the disinfector. The aerator has an influent inlet and the disinfector has an effluent outlet.The treator includes in the aerator vessel nozzle means for admitting air to the vessel in a direction to cause fluid in the vessel to move orbitally about a vertical axis with the nozzle means being disposed at a level proximate the common wall between the aerator and clarifier.

Abstract: An activated sludge marine sewage disposal apparatus includes an aeration chamber immediately adjacent to a flooded settling tank, rising above a disinfectant chamber and a holding chamber disposed around the lower part of the tank. Flow from the aeration chamber to the settling tank is through a port in the common wall between the aeration chamber and settling tank, and up inside a pond separated from the rest of the tank by a downwardly flaring baffle of skirt depending from the top of the tank. A single shimmer at the center of the area at the top of the pond picks up floating solids and returns them to the top of the aeration chamber. A vent disposed directly over the shimmer continuously draws off air and gas to the aeration chamber. A sludge return line picks up heavy solids for the bottom of the tank and returns them to the top of the aeration chamber through a riser located in the aeration chamber.