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4565563 Method of producing fertilizer product containing sewage sludge
VII
New Patents
which is converted into dense soda ash. The brine solution from the leach may be treated for the recovery of a further amount of trona.
4565138 THERMAL FURNACE
DECOMPOSITION OF WASTE TIRES
Yoshihiko Ueda, Ikuo Saito, Kazumasa Sakae, Tetuo Oogiri, Chiba, Japan assigned to Onoda Cement Co Ltd A thermal decomposition furnace in which waste tires having original shape, not broken up, can be laid horizontally and be thermally decomposed. The furnace is constructed by providing a feeder above, forming downward a fluidized bed-forming section having inlets for air, forming beneath a sealing bed-forming section of right cylindrical shape having a diameter smaller than that of fluidized bed-forming section, and installing a conveyor below said sealing bedforming section. At the lower end of sealing bedforming section, an oblique opening is formed so as to keep a progressively increasing clearance to the conveyor in the direction of advance of conveyor.
4565563 METHOD OF PRODUCING FERTILIZER PRODUCT CONTAINING SEWAGE SLUDGE Norwood K Talbert A fertilizer product consisting of solid, substantially dry, spherical or semi-spherical granules of ammonium sulfate and sewage sludge solids is formed by adding to a quantity of crystalline ammonium sulfate in a mixing vessel a second quantity of water-laden sludge while mixing the two together and driving off water from the sludge until granulation is complete. The sludge is added slowly enough, relative to the rate at which water is removed therefrom, that the ammonium sulfate crystals do not dissolve in the water initially contained in the sludge. Sludge solids effectively fill the voids between individual ammonium sulfate crystals in the resulting granules, thereby producing an end product of improved size and shape.
4565636 SELF-CONTAINED FLOW THROUGH SEWAGE WASTE DISPOSAL SYSTEM Kenneth DeGraw, Bria Wilcockson, Earl Nickerson, William R Bocchini, Arme BogosSian, Steve Proios assigned to American Standard Inc A self-contained sewage waste disposal system including a housing structure and a toilet bowl adapted to receive human waste and fluid for diluting the waste, transporting the waste and rinsing the bowl. A removable filter cassette is in the housing in communication with the toilet bowl. Structure is provided for flushing the bowl and dumping the contents into the filter cassette and for subsequent refilling of the bowl. A filter is in the cassette for separating the particles of solid material from the fluid received from the bowl. The solid material is stored in the cassette in a compact manner for subsequent disposal upon removal of the cassette. Pumps and interconnected conduits are in the housing to transport fluid directly from an external source to fill the bowl after a flush, to transport and recirculate filtered fluid through the system for further waste disposal treatment, and to direct the effluent fluid from the system thereafter. Controls are provided to pass the fluid through the system and facilitate the collection and disposal of sewage waste within the system in a predetermined sequence.
4566302 TREATMENT PRIOR TO DISPOSAL OF A SHEATHING TUBE OF A SPENT FUEL BOX OF A NUCLEAR REACTOR FUEL ASSEMBLY Antti Suvanto, Vs, Sweded assigned to AB AseaAtom A method of treating a sheathing tube or fuel channel of a spent fuel box of a fuel assembly of a nuclear reactor comprises containing and reducing the volume of the sheathing tube prior to its disposal. The sheathing tube, after separation from a bottom piece of the fuel box, is placed in a protective tube. The protective tube and sheathing tube contained therein are then flattened and shaped into a convoluted form.
New Patents
which is converted into dense soda ash. The brine solution from the leach may be treated for the recovery of a further amount of trona.
4565138 THERMAL FURNACE
DECOMPOSITION OF WASTE TIRES
Yoshihiko Ueda, Ikuo Saito, Kazumasa Sakae, Tetuo Oogiri, Chiba, Japan assigned to Onoda Cement Co Ltd A thermal decomposition furnace in which waste tires having original shape, not broken up, can be laid horizontally and be thermally decomposed. The furnace is constructed by providing a feeder above, forming downward a fluidized bed-forming section having inlets for air, forming beneath a sealing bed-forming section of right cylindrical shape having a diameter smaller than that of fluidized bed-forming section, and installing a conveyor below said sealing bedforming section. At the lower end of sealing bedforming section, an oblique opening is formed so as to keep a progressively increasing clearance to the conveyor in the direction of advance of conveyor.
4565563 METHOD OF PRODUCING FERTILIZER PRODUCT CONTAINING SEWAGE SLUDGE Norwood K Talbert A fertilizer product consisting of solid, substantially dry, spherical or semi-spherical granules of ammonium sulfate and sewage sludge solids is formed by adding to a quantity of crystalline ammonium sulfate in a mixing vessel a second quantity of water-laden sludge while mixing the two together and driving off water from the sludge until granulation is complete. The sludge is added slowly enough, relative to the rate at which water is removed therefrom, that the ammonium sulfate crystals do not dissolve in the water initially contained in the sludge. Sludge solids effectively fill the voids between individual ammonium sulfate crystals in the resulting granules, thereby producing an end product of improved size and shape.
4565636 SELF-CONTAINED FLOW THROUGH SEWAGE WASTE DISPOSAL SYSTEM Kenneth DeGraw, Bria Wilcockson, Earl Nickerson, William R Bocchini, Arme BogosSian, Steve Proios assigned to American Standard Inc A self-contained sewage waste disposal system including a housing structure and a toilet bowl adapted to receive human waste and fluid for diluting the waste, transporting the waste and rinsing the bowl. A removable filter cassette is in the housing in communication with the toilet bowl. Structure is provided for flushing the bowl and dumping the contents into the filter cassette and for subsequent refilling of the bowl. A filter is in the cassette for separating the particles of solid material from the fluid received from the bowl. The solid material is stored in the cassette in a compact manner for subsequent disposal upon removal of the cassette. Pumps and interconnected conduits are in the housing to transport fluid directly from an external source to fill the bowl after a flush, to transport and recirculate filtered fluid through the system for further waste disposal treatment, and to direct the effluent fluid from the system thereafter. Controls are provided to pass the fluid through the system and facilitate the collection and disposal of sewage waste within the system in a predetermined sequence.
4566302 TREATMENT PRIOR TO DISPOSAL OF A SHEATHING TUBE OF A SPENT FUEL BOX OF A NUCLEAR REACTOR FUEL ASSEMBLY Antti Suvanto, Vs, Sweded assigned to AB AseaAtom A method of treating a sheathing tube or fuel channel of a spent fuel box of a fuel assembly of a nuclear reactor comprises containing and reducing the volume of the sheathing tube prior to its disposal. The sheathing tube, after separation from a bottom piece of the fuel box, is placed in a protective tube. The protective tube and sheathing tube contained therein are then flattened and shaped into a convoluted form.