44 results about "Ammonia levels" patented technology

A treatment for autism in which an effective amount of lactulose is administered in order to bind excess ammonia in the gastrointestinal tract, the bloodstream, and the nervous system in order to prevent or reverse ammonia poisoning caused by the administration of certain antibiotics. Lactulose molecules in the colon are fermented by certain bacteria. The fermentation process lowers the colonic pH, and ammonia, in the form of ammonium ions, is used by the bacteria for amino acid and protein synthesis. This lowers the serum ammonia levels and reduces neurotoxicity.

A treatment for autism in which an effective amount of lactulose is administered in order to bind excess ammonia in the gastrointestinal tract, the bloodstream, and the nervous system in order to prevent or reverse ammonia poisoning caused by the administration of certain antibiotics. Lactulose molecules in the colon are fermented by certain bacteria. The fermentation process lowers the colonic pH, and ammonia, in the form of ammonium ions, is used by the bacteria for amino acid and protein synthesis. This lowers the serum ammonia levels and reduces neurotoxicity.

The present invention relates to a two-stage biofilter reactor system for removing nitrogenous compounds from a recirculating aquaculture system. The system includes a aerobic nitrification unit and a downstream anaerobic denitrification unit, wherein both units have a mobile bed of suspended media whereon bacteria can grow and reduce nitrate and / or ammonia levels in the recirculating aquaculture system. Use of the two-stage system has the advantage of reducing the water exchange rates and consumption of salt when maintaining a saline effluent.

A rapid, non-invasive breath-test method and device for diagnosing the presence or absence of H. pylori in a subject without administration of isotopic tracers is described. The device consists of a highly sensitive colorimetric ammonia sensor placed in contact with sampled subject breath. The sensor is measured using appropriate reflection spectroscopy instrumentation. The breath-test method consists of measuring a basal ammonia level with the device, administering non-isotopic urea and continuing measurement of the ammonia content in a plurality of consecutive breaths. Diagnostic differences in breath ammonia are identified between H. pylori infected and uninfected individuals.

Various methods for controlling ammonia levels stored in a catalyst by controlling exhaust gas temperatures are provided. In one embodiment, a temperature of a catalyst in an internal combustion engine is determined. If the temperature of the catalyst exceeds a first threshold at which an ammonia capacity of the catalyst for the temperature is below a current stored ammonia level in the catalyst, a load of the engine is reduced including adjusting a torque output of a motor operatively coupled to the engine.

A method for measuring ammonia in a blood sample may involve positioning the blood sample in proximity with an ammonia gas sensor, generating a current with the ammonia gas sensor in response to ammonia gas released from the blood sample, and measuring the current generated by the ammonia gas sensor, using a current measurement member coupled with the ammonia gas sensor. A device for measuring an ammonia level in a blood sample may include a blood sample containment member, an ammonia gas sensor coupled with the blood sample containment member, and a current measurement member coupled with the ammonia gas sensor. The method and device may be used to measure an ammonia level in a blood sample as small as one drop of blood, or approximately 0.05 mL of blood.

Disclosed is a method and apparatus for estimating the amount of ammonia output from a Selective Catalytic Reduction (SCR) device 20 located in the exhaust system of a vehicle powered by an internal combustion engine. A NOx sensor 44 is located downstream of the SCR to monitor the output of the SCR device and provide data for controlling the dosage of a reductant supplied to the SCR. The NOx sensor is sensitive to NOx which may be output from the SCR when it is under-dosed but is also sensitive to ammonia which may be present when the SCR is over-dosed. Consequently the signal from the NOx sensor is a combination of the NOx and / or ammonia levels in the exhaust. The method and apparatus for estimating the amount of ammonia output from the SCR determine a NOx conversion efficiency of the SCR using a variance of a NOx input measurement from a NOx sensor 42 located upstream of the SCR and a variance of a NOx output measurement from the NOx sensor 44 located downstream of the SCR. An estimate of the actual NOx output from the SCR is then determined using the measured NOx input value and the NOx conversion efficiency of the SCR. The resulting estimate of NOx output is used in conjunction with the measured NOx output to determine the ammonia output by subtracting the estimated NOx output from the measured NOx output to provide an estimate of the ammonia output.

Methods and apparatus for providing an air sampling system with first and second PID sensors to discriminate ammonia measurements. In one embodiment, air samples are taken from a vivarium environment to determine ammonia levels for controlling air flow to the vivarium.

The present invention provides a method for reducing ammonia levels, odor, microorganisms and insects in large animal stalls using a bedding material additive comprising a clay-based particulate absorbent material and an aliphatic bromo-nitro-bactericide.

Various methods for controlling ammonia levels stored in a catalyst by controlling exhaust gas temperatures are provided. In one embodiment, a temperature of a catalyst in an internal combustion engine is determined. If the temperature of the catalyst exceeds a first threshold at which an ammonia capacity of the catalyst for the temperature is below a current stored ammonia level in the catalyst, a load of the engine is reduced including adjusting a torque output of a motor operatively coupled to the engine.

A method and composition for treating or preventing the progression of hyperammonemia caused by a Urea Cycle Disorder, the method comprising administration of an effective amount of porous activated carbon particles, wherein the porous activated carbon particles are enteric-coated in order to control their release and adsorption properties. The porous activated carbon particles or microspheres can initially be coated with lactulose, followed by enterically coating the lactulose-covered carbon particles. The inventive method and composition provides a safe and uncomplicated reduction of ammonia levels in affected children.

Live water solutions containing natural fresh water or saltwater microorganisms, is used in the bio-cycling of aquariums and to provide a healthy aquatic environment. Live water obtained from natural bodies of water, such as an ocean, sea, lake, river, or stream is filtered through filter media having a pore size between 5 and 20 microns to remove contaminants and debris while allowing microorganisms to remain in suspension. The live water is packaged in containers for retail sale thereby providing consumers with a source of live aquarium water for use in an aquarium during initial set-up, to replace water lost to evaporation, and for effecting quick water changes. An enrichment solution is disclosed to aid in maintaining the microorganisms metabolically and physiologically viable for extended periods. In an alternate embodiment, the live water is concentrated to a salinity level not less than 0.8 aw thereby reducing volume while maintaining microorganism viability. Rapid biochemical cycling of an aquarium is achieved by introducing the live water into an aquarium whereby marine microorganisms instantly contribute to establishing a healthy aquatic environment by reducing harmful ammonia levels and through denitrification.

A method of reducing ammonia aerosol from manure is disclosed, which method employs an animal feed including a substantially indigestible cation exchanger capable of binding ammonium cations and an acidogenic substance to acidify an animal's manure and thereby create ammonium cations that can be bound by the cation exchanger. The method of feeding said animal feed reduces ammonia emissions from manure produced by animals fed the animal feed compared to the emissions obtained from manure when an acidogenic substance is fed alone and compared to the emissions obtained from manure when a cation exchange capacity material is fed alone.

A system comprising a first anaerobic digester (12), an ammonia recovery vessel (16) and a second anaerobic digester (14). Microorganisms in the first digester are primarily hydrolyzers and acetogens, while those in the second digester are primarily methanogens. A nitrogen containing feed stock undegoes hydrolysis ans acetogenesis in the first digester. The effluent is passed to the ammonia recovery vessel in which ammonia is removed. The low ammonia effluent stream is passed to the second digester to undergo methanogenesis, generating a biogas. In an alternate embodiment, a single anaerobic digester is used. The effluent is treated for ammonia removal and recycled to the digester to keep the ammonia levels sufficiently low to avoid ammonia inhibition.

A method for measuring ammonia in a blood sample may involve positioning the blood sample in proximity with an ammonia gas sensor, generating a current with the ammonia gas sensor in response to ammonia gas released from the blood sample, and measuring the current generated by the ammonia gas sensor, using a current measurement member coupled with the ammonia gas sensor. A device for measuring an ammonia level in a blood sample may include a blood sample containment member, an ammonia gas sensor coupled with the blood sample containment member, and a current measurement member coupled with the ammonia gas sensor. The method and device may be used to measure an ammonia level in a blood sample as small as one drop of blood, or approximately 0.05 mL of blood.