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Nitrification with sludge reaeration and ammonia enrichment
New Patents
VII
rise slowly and the pressure (from the time the receiver is liquid-full) will rise relatively fast. At the time temperature and pressure match a pair of figures on the table provided, the filling valve (14) is closed cutting off the supply of gas at the fill density required.
gas mixture rich in hydrogen and carbon monoxide, such as that obtained from steam-methane reforming, an industrially useful gas mixture having a desired H2/CO ratio with the accompanying individual recovery of high purity hydrogen and carbon monoxide as by-products.
4705409
4705625
M E T H O D A N D A P P A R A T U S FOR M E A S U R E M E N T OF CARBON C O N T E N T IN FLY ASH
REVERSE O S M O S I S WATER PURIFYING S Y S T E M John E Hart
Douglas Trerice A method and apparatus is provided for reducing and measuring carbon content in fly ash. The invention employs microwave energy as the method of heating for inducing combustion of the carbon in a fly ash sample. Measurement of the carbon content can be accomplished in accordance with the present invention by measuring temperature differential of an excess energy absorber in the form of water before and after the fly ash is exposed to microwave radiation.
4705541 P R O D U C T I O N OF M I X E D GASES OF C O N T R O L L E D C O M P O S I T I O N BY P R E S S U R E SWING A D S O R P T I O N Shivaj Sircar assigned to Air Products and Chemicals Inc Adjusted gas compositions having two or more components in desired proportions for particular industrial uses are obtained from available feed gas mixtures accompanied by recovery of one or more valuable individual gases of high purity, by a novel selective adsorptiondesorption scheme carried out in a multi-column PSA system. Following initial adsorption of one or more components from the feed gas mixture at high pressure the sorbate-laden column is subjected to a high pressure rinse using as rinse gas the previously recovered more strongly adsorbed species. After the rinsing step, the column is depressured to a selected level and purged with part of the unsorbed gas effluent discharged during the initial adsorption step until a preset amount of the earlier sorbed gas is recovered in the purge effluent as the readjusted binary gas mixture of desired proportions. As an example, there is disclosed the production from a starting
A reverse osmosis (R.O.) water purifier system that collects and stores pure water at low pressure and dispenses it at high pressure. Impurities left behind when the water passes through a R.O. module are disposed of by two methods: the fast flush method and the slow flush method. In the fast flush method, water entering a R.O. module may take two paths to escape therefrom. The first path constrains it to travel through a semi-permeable membrane in the module which filters out undissolved solids and which restrains the passage of dissolved liquids. The second path allows it to travel through the R.O. module, without passing through the membrane, thereby carrying out those impurities left behind by the water passing through the membrane. The purified water is directed to one side of a compartmented storage tank and the waste water from the module is directed to a control valve. From the control valve, the waste water may be directed through a restriction to a drain or it may be directed to the other compartment of the storage tank where the purified water is held. In the slow flush method, water enters a control valve, travels to the R.O. module, and has two paths o f escape therefrom. The first path contrains it to go through the semi-permeable membrane in the R.O. module, and through a check valve to storage or outlet. The second path allows the water to escape through the R.O. module, thereby carrying to a drain the impurities left behind.
4705633 NITRIFICATION WITH S L U D G E REAERATION A N D A M M O N I A ENRICHMENT Eugene D Bogusch A nitrification process is disclosed wherein the population of the nitrifying bacteria in an ac-
viii
New Patents
tivated sludge system may be increased by the addition of ammonium nitrogen to a return sludge reaeration zone. The increased nitrifying population results in increased reliability of nitrification and lower effluent ammonium nitrogen concentrations.
4705667 ANALYZING APPARATUS FOR MEASURING LIQUID OR GASEOUS SAMPLES Hermann Marsoner, Erich Kleinhappl, Steinberg, Austria assigned to AVL AG In its initial position an input opening of a sample input device provides a seal against a funnel element which is directly connected to a feed pipe delivering standard media and to a valvecontrolled air supply, and which has a feed opening cooperating with the input opening. Thus, in the initial position of the sample input device, the input opening and the feed opening at the funnel element together are part of a closed path for the additional media required for measurement and cleaning purposes, which will simplify the overall design of the apparatus.
4705756 METHOD OF DETERMINING THE EXISTENCE AND/OR THE MONITORING OF A PATHOLOGICAL CONDITION IN A MAMMAL Charles R Spillert, William D Suval, Eric Lazaro assigned to University of Medicine and Dentistry of New Jersey A method of testing a cellular hematologic fluid derived from a mammal to determine the existence in the mammal of a pathological state or condition wherein an immunomodulator is admixed with the cellular hematologic fluid of the mammal and a reaction parameter determined and compared with known reaction parameters of cellular hematologic fluids of mammals of known healthy states to like immunomodulator. In a preferred embodiment of the present invention, the reaction parameter is a clotting parameter as determined as fibrin levels.
4712491 PROCESS AND APPARATUS FOR THE CONTROLLED BURNING OF A VERTICAL STACK OF SOLID FUEL Lothar Schmidt, Munich, Federal Republic Of Germany assigned to Wamsler-Herd-Und Ofen GmbH The downward burning of a vertical stack of solid fuel in a vertical furnace shaft is controlled by supplying most of the combustion air to the side of the stack through vertically spaced apart rows of combustion air supply openings in the vertical furnace shaft, each row of combustion air supply openings being generally horizontally oriented and including a plurality of separate openings. Each row of combustion air supply openings is supplied with combustion air through a separate combustion air supply channel, and the combination air fed to each supply channel is controlled by a distribution element which shifts the supply of combustion air to lower rows of air supply openings as the combustion zone moves down to the bottom of the vertical stack.
4712505 COMBINATION HAZARDOUS LIQUID AND WATER SENSOR H Kent Wainwright assigned to In-Situ Inc Apparatus and method are provided for sensing the presence of product and/or water in the annular space of a double wall storage tank. The apparatus includes both a product sensing element and a water sensing element that are operatively associated with each other to control the compression of a spring. The spring is operatively connected to a colored marker which is able to move from within an opaque tube to within a transparent tube using the force of the spring. When the product sensing element is contacted by product or the water sensing element is contacted by water so that the respective sensor weakens, the spring force is used to move the colored marker so that it is within the transparent tube. In such a position, the colored marker becomes visible, indicating that product and/or water are present in the annular space of the double wall storage tank.
VII
rise slowly and the pressure (from the time the receiver is liquid-full) will rise relatively fast. At the time temperature and pressure match a pair of figures on the table provided, the filling valve (14) is closed cutting off the supply of gas at the fill density required.
gas mixture rich in hydrogen and carbon monoxide, such as that obtained from steam-methane reforming, an industrially useful gas mixture having a desired H2/CO ratio with the accompanying individual recovery of high purity hydrogen and carbon monoxide as by-products.
4705409
4705625
M E T H O D A N D A P P A R A T U S FOR M E A S U R E M E N T OF CARBON C O N T E N T IN FLY ASH
REVERSE O S M O S I S WATER PURIFYING S Y S T E M John E Hart
Douglas Trerice A method and apparatus is provided for reducing and measuring carbon content in fly ash. The invention employs microwave energy as the method of heating for inducing combustion of the carbon in a fly ash sample. Measurement of the carbon content can be accomplished in accordance with the present invention by measuring temperature differential of an excess energy absorber in the form of water before and after the fly ash is exposed to microwave radiation.
4705541 P R O D U C T I O N OF M I X E D GASES OF C O N T R O L L E D C O M P O S I T I O N BY P R E S S U R E SWING A D S O R P T I O N Shivaj Sircar assigned to Air Products and Chemicals Inc Adjusted gas compositions having two or more components in desired proportions for particular industrial uses are obtained from available feed gas mixtures accompanied by recovery of one or more valuable individual gases of high purity, by a novel selective adsorptiondesorption scheme carried out in a multi-column PSA system. Following initial adsorption of one or more components from the feed gas mixture at high pressure the sorbate-laden column is subjected to a high pressure rinse using as rinse gas the previously recovered more strongly adsorbed species. After the rinsing step, the column is depressured to a selected level and purged with part of the unsorbed gas effluent discharged during the initial adsorption step until a preset amount of the earlier sorbed gas is recovered in the purge effluent as the readjusted binary gas mixture of desired proportions. As an example, there is disclosed the production from a starting
A reverse osmosis (R.O.) water purifier system that collects and stores pure water at low pressure and dispenses it at high pressure. Impurities left behind when the water passes through a R.O. module are disposed of by two methods: the fast flush method and the slow flush method. In the fast flush method, water entering a R.O. module may take two paths to escape therefrom. The first path constrains it to travel through a semi-permeable membrane in the module which filters out undissolved solids and which restrains the passage of dissolved liquids. The second path allows it to travel through the R.O. module, without passing through the membrane, thereby carrying out those impurities left behind by the water passing through the membrane. The purified water is directed to one side of a compartmented storage tank and the waste water from the module is directed to a control valve. From the control valve, the waste water may be directed through a restriction to a drain or it may be directed to the other compartment of the storage tank where the purified water is held. In the slow flush method, water enters a control valve, travels to the R.O. module, and has two paths o f escape therefrom. The first path contrains it to go through the semi-permeable membrane in the R.O. module, and through a check valve to storage or outlet. The second path allows the water to escape through the R.O. module, thereby carrying to a drain the impurities left behind.
4705633 NITRIFICATION WITH S L U D G E REAERATION A N D A M M O N I A ENRICHMENT Eugene D Bogusch A nitrification process is disclosed wherein the population of the nitrifying bacteria in an ac-
viii
New Patents
tivated sludge system may be increased by the addition of ammonium nitrogen to a return sludge reaeration zone. The increased nitrifying population results in increased reliability of nitrification and lower effluent ammonium nitrogen concentrations.
4705667 ANALYZING APPARATUS FOR MEASURING LIQUID OR GASEOUS SAMPLES Hermann Marsoner, Erich Kleinhappl, Steinberg, Austria assigned to AVL AG In its initial position an input opening of a sample input device provides a seal against a funnel element which is directly connected to a feed pipe delivering standard media and to a valvecontrolled air supply, and which has a feed opening cooperating with the input opening. Thus, in the initial position of the sample input device, the input opening and the feed opening at the funnel element together are part of a closed path for the additional media required for measurement and cleaning purposes, which will simplify the overall design of the apparatus.
4705756 METHOD OF DETERMINING THE EXISTENCE AND/OR THE MONITORING OF A PATHOLOGICAL CONDITION IN A MAMMAL Charles R Spillert, William D Suval, Eric Lazaro assigned to University of Medicine and Dentistry of New Jersey A method of testing a cellular hematologic fluid derived from a mammal to determine the existence in the mammal of a pathological state or condition wherein an immunomodulator is admixed with the cellular hematologic fluid of the mammal and a reaction parameter determined and compared with known reaction parameters of cellular hematologic fluids of mammals of known healthy states to like immunomodulator. In a preferred embodiment of the present invention, the reaction parameter is a clotting parameter as determined as fibrin levels.
4712491 PROCESS AND APPARATUS FOR THE CONTROLLED BURNING OF A VERTICAL STACK OF SOLID FUEL Lothar Schmidt, Munich, Federal Republic Of Germany assigned to Wamsler-Herd-Und Ofen GmbH The downward burning of a vertical stack of solid fuel in a vertical furnace shaft is controlled by supplying most of the combustion air to the side of the stack through vertically spaced apart rows of combustion air supply openings in the vertical furnace shaft, each row of combustion air supply openings being generally horizontally oriented and including a plurality of separate openings. Each row of combustion air supply openings is supplied with combustion air through a separate combustion air supply channel, and the combination air fed to each supply channel is controlled by a distribution element which shifts the supply of combustion air to lower rows of air supply openings as the combustion zone moves down to the bottom of the vertical stack.
4712505 COMBINATION HAZARDOUS LIQUID AND WATER SENSOR H Kent Wainwright assigned to In-Situ Inc Apparatus and method are provided for sensing the presence of product and/or water in the annular space of a double wall storage tank. The apparatus includes both a product sensing element and a water sensing element that are operatively associated with each other to control the compression of a spring. The spring is operatively connected to a colored marker which is able to move from within an opaque tube to within a transparent tube using the force of the spring. When the product sensing element is contacted by product or the water sensing element is contacted by water so that the respective sensor weakens, the spring force is used to move the colored marker so that it is within the transparent tube. In such a position, the colored marker becomes visible, indicating that product and/or water are present in the annular space of the double wall storage tank.