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5476990 Waste management facility
VII
New Patents and at the same time permit a single-screw extractor to be used without having to periodically reverse the direction of screw rotation to unclog the slots and by the pitch of the screw conveyor. The inventive arrangement permits the use of a multi-section extractor employing different extraction media and/or different extraction media wash rates in different sections of the extractor.
continuously removing a portion of the mixed liquor from the basin at a desired constant flow rate.
5476640 LOW TEMPERATURE DESTRUCTION OF TOXICS IN POLLUTANT AIR STREAMS
5476583 MIXED LIQUOR WASTING SYSTEM Baton Rouge, LA, UNITED Beard Harold J STATES assigned to United Industries Inc In an extended aeration wastewater treatment system having wastewater flowing into a retention basin so as to form mixed liquor within the retention basin, the treated mixed liquor flowing out of retention basin through a retention basin exit line to an external clarifier, a mixed liquor wasting system is provided, comprising a thickener tank, having a sidewall and a bottom; a waste line having a first end and a second end, the first end fluidly connected to the retention basin by connection to the retention basin exit line, and the second end fluidly connected to the thickener tank; a first flow control device, such as a pump, for continuously removing a portion of the mixed liquor from the basin at a desired constant flow rate through the waste line, positioned in the waste line; a sludge removal line having a first end and a second end, the first end fluidly connected to the bottom of the thickener tank, and the second end fluidly connected to a sludge disposal system; a second flow control device, such as a pump, for removing a concentrated portion of the mixed liquor from the thickener tank, positioned in the sludge removal line; and a return line having a first end and a second end, the first end fluidly connected to the thickener tank above the bottom, and the second end fluidly connected to the retention basin. A method for wasting mixed liquor is provided, comprising the step of
Abbott James H; Drehmel Dennis C; Ramsey Geddes H Cary, NC, UNITED STATES assigned to The United States of America as represented by the Administrator of the U S Environmental Protection Agency Low temperature low volume time streams utilizing parallel conduits the conduits and the conduits and response to toxin
apparatus for the destruction of varying organic air toxins in air non-catalytic glass beads in heated by hot gas flow around flowing the air stream through controlling the hot gas flow in levels in the air stream.
5476990 WASTE MANAGEMENT
FACILITY
Hittner Herman J; Byers R Lee; Lees John N; Rierson David; Dinter-Brown Ludmil Lower Burrell, PA, UNITED STATES assigned to Aluminum Company of America An industrial waste management facility (IWMF) for disposing of spent potlining includes a co-current gas-fired rotary kiln for containing a molten pool of spent potlining throughout the entire length of the rotary kiln from the inlet to the outlet, an ash quencher and cooler for receiving molten residue from the discharge end of the rotary kiln, a secondary combustion chamber, and a down-draft transition chamber for channeling discharge gases from the rotary kiln to the combustion chamber. Pneumatic secondary
New Patents
VIII
injection slingers feed and distribute spent potlining into the inlet end of the rotary kiln. A discharge dam provides a predetermined average depth of molten bath material in the rotary kiln over its entire length. A blended ratio of cornminuted materials injected through the pneumatic injection slinger feeder is adjusted and controlled in response to signals received from a radiative optical kiln bath temperature measurement system. The IWMF recovers fluorides from discharge gases exiting the secondary combustion chamber, recycles the fluorides to the molten bath or pool of the rotary kiln, and collects and withdraws glass frit residue from the ash quencher and cooler.
5477676 METHOD AND APPARATUS FOR THERMAL MANAGEMENT OF VEHICLE EXHAUST SYSTEMS Benson David K; Potter Thomas F Golden, CO, UNITED STATES assigned to Midwest Research Institute A catalytic converter is surrounded by variable conductance insulation for maintaining the operating temperature of the catalytic converter at an optimum level, for inhibiting heat loss when raising catalytic converter temperature to light-off temperature, for storing excess heat to maintain or accelerate reaching light-off temperature, and for conducting excess heat away from the catalytic converter after reaching light-off temperature. The variable conductance insulation includes vacuum gas control and metal-to-metal thermal shunt mechanisms. Radial and axial shielding inhibits radiation and convection heat loss. Thermal storage media includes phase change material, and heat exchanger chambers and fluids carry heat to and from the catalytic converter.
5480562 METHOD OF PURIFYING WATER CONTROLLED BY LASER SCANNING Lemelson Jerome H UNITED STATES
Incline
Village,
NV,,
A system and method is disclosed for purifying water for drinking or bathing purposes employing an optical scanning device for detecting organisms in the water such as bacteria, algae, or viruses. The optical scanning device may be a video camera or may comprise a laser for irradiating the organisms and a photodetector for detecting radiation emanating from the organisms. A computer analyzes scanning signals generated by the scanning device and controls a device for neutralizing the organisms, such as a chemical injector or radiation source, in accordance with the scanning signals. The system may also be used to detect and neutralize disease producing organisms in a body fluid of a patient or in any fluid used for biological experimentation, testing, or production.
5481112 METHOD AND APPARATUS FOR PROCESS CONTROL OF MATERIAL EMITTING RADIATION Marui Tomohiro; Arai Kazuo Fuchu, JAPAN assigned to Kawasaki Steel Corporation A method and apparatus are disclosed for controlling a physical property such as deposited film thickness to a desired value of control in a high temperature process using a desired emissivity power ratio and an emissivity power ratio measured from detected radiation energy. The measured emissivity power ratio is obtained on-line from detection signals of radiation sensors. A desired value of control is converted to the ratio using emissivity power desired predetermined relationships established by theory
New Patents and at the same time permit a single-screw extractor to be used without having to periodically reverse the direction of screw rotation to unclog the slots and by the pitch of the screw conveyor. The inventive arrangement permits the use of a multi-section extractor employing different extraction media and/or different extraction media wash rates in different sections of the extractor.
continuously removing a portion of the mixed liquor from the basin at a desired constant flow rate.
5476640 LOW TEMPERATURE DESTRUCTION OF TOXICS IN POLLUTANT AIR STREAMS
5476583 MIXED LIQUOR WASTING SYSTEM Baton Rouge, LA, UNITED Beard Harold J STATES assigned to United Industries Inc In an extended aeration wastewater treatment system having wastewater flowing into a retention basin so as to form mixed liquor within the retention basin, the treated mixed liquor flowing out of retention basin through a retention basin exit line to an external clarifier, a mixed liquor wasting system is provided, comprising a thickener tank, having a sidewall and a bottom; a waste line having a first end and a second end, the first end fluidly connected to the retention basin by connection to the retention basin exit line, and the second end fluidly connected to the thickener tank; a first flow control device, such as a pump, for continuously removing a portion of the mixed liquor from the basin at a desired constant flow rate through the waste line, positioned in the waste line; a sludge removal line having a first end and a second end, the first end fluidly connected to the bottom of the thickener tank, and the second end fluidly connected to a sludge disposal system; a second flow control device, such as a pump, for removing a concentrated portion of the mixed liquor from the thickener tank, positioned in the sludge removal line; and a return line having a first end and a second end, the first end fluidly connected to the thickener tank above the bottom, and the second end fluidly connected to the retention basin. A method for wasting mixed liquor is provided, comprising the step of
Abbott James H; Drehmel Dennis C; Ramsey Geddes H Cary, NC, UNITED STATES assigned to The United States of America as represented by the Administrator of the U S Environmental Protection Agency Low temperature low volume time streams utilizing parallel conduits the conduits and the conduits and response to toxin
apparatus for the destruction of varying organic air toxins in air non-catalytic glass beads in heated by hot gas flow around flowing the air stream through controlling the hot gas flow in levels in the air stream.
5476990 WASTE MANAGEMENT
FACILITY
Hittner Herman J; Byers R Lee; Lees John N; Rierson David; Dinter-Brown Ludmil Lower Burrell, PA, UNITED STATES assigned to Aluminum Company of America An industrial waste management facility (IWMF) for disposing of spent potlining includes a co-current gas-fired rotary kiln for containing a molten pool of spent potlining throughout the entire length of the rotary kiln from the inlet to the outlet, an ash quencher and cooler for receiving molten residue from the discharge end of the rotary kiln, a secondary combustion chamber, and a down-draft transition chamber for channeling discharge gases from the rotary kiln to the combustion chamber. Pneumatic secondary
New Patents
VIII
injection slingers feed and distribute spent potlining into the inlet end of the rotary kiln. A discharge dam provides a predetermined average depth of molten bath material in the rotary kiln over its entire length. A blended ratio of cornminuted materials injected through the pneumatic injection slinger feeder is adjusted and controlled in response to signals received from a radiative optical kiln bath temperature measurement system. The IWMF recovers fluorides from discharge gases exiting the secondary combustion chamber, recycles the fluorides to the molten bath or pool of the rotary kiln, and collects and withdraws glass frit residue from the ash quencher and cooler.
5477676 METHOD AND APPARATUS FOR THERMAL MANAGEMENT OF VEHICLE EXHAUST SYSTEMS Benson David K; Potter Thomas F Golden, CO, UNITED STATES assigned to Midwest Research Institute A catalytic converter is surrounded by variable conductance insulation for maintaining the operating temperature of the catalytic converter at an optimum level, for inhibiting heat loss when raising catalytic converter temperature to light-off temperature, for storing excess heat to maintain or accelerate reaching light-off temperature, and for conducting excess heat away from the catalytic converter after reaching light-off temperature. The variable conductance insulation includes vacuum gas control and metal-to-metal thermal shunt mechanisms. Radial and axial shielding inhibits radiation and convection heat loss. Thermal storage media includes phase change material, and heat exchanger chambers and fluids carry heat to and from the catalytic converter.
5480562 METHOD OF PURIFYING WATER CONTROLLED BY LASER SCANNING Lemelson Jerome H UNITED STATES
Incline
Village,
NV,,
A system and method is disclosed for purifying water for drinking or bathing purposes employing an optical scanning device for detecting organisms in the water such as bacteria, algae, or viruses. The optical scanning device may be a video camera or may comprise a laser for irradiating the organisms and a photodetector for detecting radiation emanating from the organisms. A computer analyzes scanning signals generated by the scanning device and controls a device for neutralizing the organisms, such as a chemical injector or radiation source, in accordance with the scanning signals. The system may also be used to detect and neutralize disease producing organisms in a body fluid of a patient or in any fluid used for biological experimentation, testing, or production.
5481112 METHOD AND APPARATUS FOR PROCESS CONTROL OF MATERIAL EMITTING RADIATION Marui Tomohiro; Arai Kazuo Fuchu, JAPAN assigned to Kawasaki Steel Corporation A method and apparatus are disclosed for controlling a physical property such as deposited film thickness to a desired value of control in a high temperature process using a desired emissivity power ratio and an emissivity power ratio measured from detected radiation energy. The measured emissivity power ratio is obtained on-line from detection signals of radiation sensors. A desired value of control is converted to the ratio using emissivity power desired predetermined relationships established by theory