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5591342 Process for the anaerobic digestion of liquid wastes
804
PATENT ABSTRACTS
A compost curing and odor control system in which biofilters are disposed in overlying relation to the compost curing area the floors of both the biofilters and curing area consist of a series of elongated planks of generally trapezoidal cross sectional configuration placed in abutting relation with the longer parallel sides of the trapezoid lying in the plane of the floor and forming between them a narrow slit through which air is passed by means of an underlying air plenum in pneumatic communication.
5585004 TREATMENT
OF AQUEOUS
MEDIA CONTAINING ORGANIC MATERIAL USING TUBULAR
MEMBRANES
Livingston Andrew London, UNITED KINGDOM Assigned to Imperial College of Science Technology & Medicine PCT No. PCT/GB92/01719 Sec. 371 Date Jun. 10, 1994 Sec. 102(e) Date Jun. 10, 1994 PCT Filed Sep. 18, 1992 PCT Pub. No. WO93/06045 PCT Pub. Date Apr. 1, 1993.A method of reducing the concentration of at least one organic compound present in an aqueous feedstock, wherein said feedstock is supplied to one side of a substantially water-insoluble selectively permeable polymeric sheet or tubular membrane whose permeability to the or each said organic compound exceeds its permeability to chloride ion whilst simultaneously maintaining in contact with the other side of said membrane an aqueous reaction medium containing biologically active reaction means capable of reacting with said at least one compound after it permeates through the wall of the tubular membrane. Apparatus, preferably enclosed, for carrying into effect the method is also disclosed and permits treatment of waste waters containing volatile organic compounds. Modular bioreactor apparatus in the form of a cartridge containing a bundle of polymeric membrane tubes is also disclosed.
5587320 SOLID ORGANIC WASTE PROCESSING APPARATUS Shindo Yasuhiro; Yamaguti Usaburo; loka Kazuo; Suzuki Tosio; Minagawa Aldhiro; Kitabatake Syoichi Tochigi ken, JAPAN Assigned to Hitachi Ltd An apparatus for processing solid organic waste by crushing and/or agitating and fermenting the waste includes a solid organic matter processing device including a processing vessel provided with a crushing unit for receiving and crushing the solid organic waste and a processing unit for agitating and fermenting the crushed waste, a heat exchanger disposed outside the solid organic matter processing device which heat exchanger condenses vapor in a gas supplied from the processing vessel of the solid organic matter processing device to thereby change the vapor to liquid and to discharge the liquid, and gas circulation pipes for providing a gas circulation path through which the inside of the processing vessel of the solid organic matter processing device is operably connected to the heat exchanger and through which a gas in the processing vessel of the solid organic matter processing device is supplied into the heat exchanger and almost all of which gas processed in the heat exchanger is returned to the solid organic matter processing device while a portion of the gas processed in the heat exchanger or a portion of the gas supplied from the processing vessel of the solid organic matter processing device is discharged to the outside of the apparatus.
5591342 PROCESS
FOR
THE
ANAEROBIC DIGESTION LIQUID WASTES
OF
Delporte Claude; Jacquart Jean-Claud Rueil Malmaison, FRANCE Assigned to Degremont An anaerobic digestion process for the removal of the organic matter contained in a liquid waste, notably raw water, subjects the waste to an acidogenesis stage and then to a methanogenesis stage. The waste, which has been subjected to the
PATENT ABSTRACTS
acidogenesis stage, is subjected to a stage of separation by settling, before the methanogenesis stage. At least part of the sludge separates during this intermediate stage. Part of the treated water is recycled to the acidogenesis stage.
5591637 METHOD
FOR
MANUFACTURING OF ORGANIC FERTILIZERS AND DEVICE
THEREOF
lnoue Satosh Oiso Machi, Naka Gun, Kanagawa, JAPAN
805
containing troublesome compounds forms in,and is removed from, the deeply chilled gas before it is expanded to provide refrigeration for chilling the gas. By adding water to the aqueous methanol, the troublesome compounds lose solubility in diluted methanol and form a supematant layer that can be separated for disposal. The diluted methanol can be recycled.
5597402 SELF-REGULATED BIOLOGICAL SCRUBBER AND/OR GAS STRIPPER FOR THE TREATMENT OF FLUID STREAMS
There is provided a method and apparatus for manufacturing organic fertilizers by fermentation of a mixture of livestock excrement with cellulose containing organic materials, said mixture containing thermophilic and aerobic microorganisms, which method comprises adjusting moisture content of said mixture to 25-75 wt %, cutting and kneading said mixture until the temperature thereof goes up to 40°C-90°C by the elevated pressure and friction caused by said cutting and kneading, thereby causing thermophilic organisms to be activated, followed by pulverizing the thus-treated mixture while contacting it with air, thereby causing the aerobic organisms to be activated.
5596884 CRYOGENIC LANDFILL
TREATMENT OF GAS TO REMOVE
TROUBLESOME
COMPOUNDS
Markbreiter Stephen J; Weiss Irving Edison, NJ, UNITED STATES Assigned to Kryos Energy Inc The cryogenic treatment of landfill gas removes troublesome compounds that cause severe corrosion of combustion engines in which the gas is used as fuel. It involves compressing the gas to an elevated pressure and isenthalpically expanding the gas to chill the gas to a temperature below -20°F. The compressed gas is first cooled to eliminate moisture as condensate. Methanol is injected into the gas so that it can be deeply chilled without forming ice with residual moisture in the gas. An aqueous methanol condensate
LaPack Mark; Nestrick Terry; Martin William; Klecka Gary M Midland, MI, UNITED STATES Assigned to The Dow Chemical Company This invention relates to a self-regulated apparatus and method for extracting biodegradable and/or strippable constituents from a gaseous stream by the action of biomass which consumes or degrades such substances. Such self-regulation permits the monitoring and optimization of the bioactivity of the system and the overall degree of treatment of the gaseous stream.
5597732 COMPOSTING Bryan-Brown Michae UNITED STATES
APPARATUS Whitingham, VT,
There is provided an apparatus for composting organic waste in a container with an uneven aeration floor positioned above the bottom of the container. Preferably, the aeration floor slopes down and in from its outer edges to encourage liquid formed during composting to collect under the perforated center portion of the aeration floor. Preferably, the performed center portion of the aeration floor is arched or peaked. This particular aeration floor configuration directs more air toward the center of the composting mass while minimizing the amount of air following the path of least resistance up the side wail. A chamber is defined by the aeration floor and the bottom of the
PATENT ABSTRACTS
A compost curing and odor control system in which biofilters are disposed in overlying relation to the compost curing area the floors of both the biofilters and curing area consist of a series of elongated planks of generally trapezoidal cross sectional configuration placed in abutting relation with the longer parallel sides of the trapezoid lying in the plane of the floor and forming between them a narrow slit through which air is passed by means of an underlying air plenum in pneumatic communication.
5585004 TREATMENT
OF AQUEOUS
MEDIA CONTAINING ORGANIC MATERIAL USING TUBULAR
MEMBRANES
Livingston Andrew London, UNITED KINGDOM Assigned to Imperial College of Science Technology & Medicine PCT No. PCT/GB92/01719 Sec. 371 Date Jun. 10, 1994 Sec. 102(e) Date Jun. 10, 1994 PCT Filed Sep. 18, 1992 PCT Pub. No. WO93/06045 PCT Pub. Date Apr. 1, 1993.A method of reducing the concentration of at least one organic compound present in an aqueous feedstock, wherein said feedstock is supplied to one side of a substantially water-insoluble selectively permeable polymeric sheet or tubular membrane whose permeability to the or each said organic compound exceeds its permeability to chloride ion whilst simultaneously maintaining in contact with the other side of said membrane an aqueous reaction medium containing biologically active reaction means capable of reacting with said at least one compound after it permeates through the wall of the tubular membrane. Apparatus, preferably enclosed, for carrying into effect the method is also disclosed and permits treatment of waste waters containing volatile organic compounds. Modular bioreactor apparatus in the form of a cartridge containing a bundle of polymeric membrane tubes is also disclosed.
5587320 SOLID ORGANIC WASTE PROCESSING APPARATUS Shindo Yasuhiro; Yamaguti Usaburo; loka Kazuo; Suzuki Tosio; Minagawa Aldhiro; Kitabatake Syoichi Tochigi ken, JAPAN Assigned to Hitachi Ltd An apparatus for processing solid organic waste by crushing and/or agitating and fermenting the waste includes a solid organic matter processing device including a processing vessel provided with a crushing unit for receiving and crushing the solid organic waste and a processing unit for agitating and fermenting the crushed waste, a heat exchanger disposed outside the solid organic matter processing device which heat exchanger condenses vapor in a gas supplied from the processing vessel of the solid organic matter processing device to thereby change the vapor to liquid and to discharge the liquid, and gas circulation pipes for providing a gas circulation path through which the inside of the processing vessel of the solid organic matter processing device is operably connected to the heat exchanger and through which a gas in the processing vessel of the solid organic matter processing device is supplied into the heat exchanger and almost all of which gas processed in the heat exchanger is returned to the solid organic matter processing device while a portion of the gas processed in the heat exchanger or a portion of the gas supplied from the processing vessel of the solid organic matter processing device is discharged to the outside of the apparatus.
5591342 PROCESS
FOR
THE
ANAEROBIC DIGESTION LIQUID WASTES
OF
Delporte Claude; Jacquart Jean-Claud Rueil Malmaison, FRANCE Assigned to Degremont An anaerobic digestion process for the removal of the organic matter contained in a liquid waste, notably raw water, subjects the waste to an acidogenesis stage and then to a methanogenesis stage. The waste, which has been subjected to the
PATENT ABSTRACTS
acidogenesis stage, is subjected to a stage of separation by settling, before the methanogenesis stage. At least part of the sludge separates during this intermediate stage. Part of the treated water is recycled to the acidogenesis stage.
5591637 METHOD
FOR
MANUFACTURING OF ORGANIC FERTILIZERS AND DEVICE
THEREOF
lnoue Satosh Oiso Machi, Naka Gun, Kanagawa, JAPAN
805
containing troublesome compounds forms in,and is removed from, the deeply chilled gas before it is expanded to provide refrigeration for chilling the gas. By adding water to the aqueous methanol, the troublesome compounds lose solubility in diluted methanol and form a supematant layer that can be separated for disposal. The diluted methanol can be recycled.
5597402 SELF-REGULATED BIOLOGICAL SCRUBBER AND/OR GAS STRIPPER FOR THE TREATMENT OF FLUID STREAMS
There is provided a method and apparatus for manufacturing organic fertilizers by fermentation of a mixture of livestock excrement with cellulose containing organic materials, said mixture containing thermophilic and aerobic microorganisms, which method comprises adjusting moisture content of said mixture to 25-75 wt %, cutting and kneading said mixture until the temperature thereof goes up to 40°C-90°C by the elevated pressure and friction caused by said cutting and kneading, thereby causing thermophilic organisms to be activated, followed by pulverizing the thus-treated mixture while contacting it with air, thereby causing the aerobic organisms to be activated.
5596884 CRYOGENIC LANDFILL
TREATMENT OF GAS TO REMOVE
TROUBLESOME
COMPOUNDS
Markbreiter Stephen J; Weiss Irving Edison, NJ, UNITED STATES Assigned to Kryos Energy Inc The cryogenic treatment of landfill gas removes troublesome compounds that cause severe corrosion of combustion engines in which the gas is used as fuel. It involves compressing the gas to an elevated pressure and isenthalpically expanding the gas to chill the gas to a temperature below -20°F. The compressed gas is first cooled to eliminate moisture as condensate. Methanol is injected into the gas so that it can be deeply chilled without forming ice with residual moisture in the gas. An aqueous methanol condensate
LaPack Mark; Nestrick Terry; Martin William; Klecka Gary M Midland, MI, UNITED STATES Assigned to The Dow Chemical Company This invention relates to a self-regulated apparatus and method for extracting biodegradable and/or strippable constituents from a gaseous stream by the action of biomass which consumes or degrades such substances. Such self-regulation permits the monitoring and optimization of the bioactivity of the system and the overall degree of treatment of the gaseous stream.
5597732 COMPOSTING Bryan-Brown Michae UNITED STATES
APPARATUS Whitingham, VT,
There is provided an apparatus for composting organic waste in a container with an uneven aeration floor positioned above the bottom of the container. Preferably, the aeration floor slopes down and in from its outer edges to encourage liquid formed during composting to collect under the perforated center portion of the aeration floor. Preferably, the performed center portion of the aeration floor is arched or peaked. This particular aeration floor configuration directs more air toward the center of the composting mass while minimizing the amount of air following the path of least resistance up the side wail. A chamber is defined by the aeration floor and the bottom of the