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7604988 |
Closed loop work station bioremediation using mini-reactor cartridges
A system for capturing and neutralizing HAP's (hazardous air pollutants) and VOC's (volatile organic compounds) at the source point by providing a closed loop remediation system which utilizes an...
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7531159 |
Method for extracting H2S from sour gas
This invention teaches a process that includes extraction of gas in which the presence of foam results in the carry over in the outlet gas stream of excessive liquids and/or solids, including the...
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7514254 |
Plant-derived alkaline alpha-galactosidase
There are provided novel plant-derived enzymes for hydrolysis of sugars and particularly an alkaline alpha-galactosidase which hydrolyzes a broad spectrum of galactosyl-saccharides such as...
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7514056 |
Process and installation for the fractionation of air into specific gases
In order to reduce incoming atmospheric carbon dioxide levels in compressed air prior to cryogenic distillation, a water spray cooling tower equipped with biocatalytic packing, or fed with...
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7405069 |
Method for removing a nitrogen oxide from a gas
The invention pertains to a method and an apparatus for removing a nitrogen oxide (NO x ) from a gas by bringing the gas into contact with a scrub liquid in a scrubber for converting the nitrogen...
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7351392 |
Process for the high recovery efficiency of sulfur from an acid gas stream
A combined process for the recovery of sulfur from an acid gas stream. The combined process includes both a Claus unit and a unit for treating the Claus tail gas with caustic to remove hydrogen...
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7311743 |
Biofiltration apparatus and method for reducing methyl bromide concentration in a volume of gas
A biofiltration apparatus and method for reducing methyl bromide concentration in a volume of a gas are disclosed. The apparatus includes a housing and a substrate component located in the housing....
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7285402 |
Methods for increasing the production of ethanol from microbial fermentation
A stable continuous method for producing ethanol from the anaerobic bacterial fermentation of a gaseous substrate containing at least one reducing gas involves culturing a fermentation bioreactor...
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7276366 |
Biological scrubber odor control system and method
A system and method for the purification and biodeodorizing of a gas are disclosed. The system is highly adaptable and capable of operating in a variety of modes to tailor performance of the system...
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7160712 |
Odor control
Disclosed herein is a method for treating odors in wastewater treatment bodies. The pH of the body is preferably established above about 6 and most preferably above about 7, usually by adding a...
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6946288 |
Ventilation system for an enclosure in which people live and a method thereof
A ventilation system is disclosed for an enclosure in which people live. The ventilation system comprises a first ducting means for ducting fresh air from outside to inside the enclosure and a...
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6924140 |
Closed loop work station bioremediation using mini-reactor cartridges
A system for capturing and neutralizing HAP's (hazardous air pollutants) and VOC's (volatile organic compounds) at the source point by providing a closed loop remediation system which utilizes an...
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6759225 |
Lysophospholipase
The inventors have isolated lysophospholipases from Aspergillus ( A. niger and A. oryzae ) having molecular masses of about 68 kDa and amino acid sequences of 600-604 amino acid residues. The...
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6703234 |
Animal body composting
A method of composting especially high protein waste which reduces noxious odor and assists in reducing pathogens by recirculating substantially only the air and gaseous product of the composting...
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6696284 |
Biological filter for the purification of waste gases
The present invention relates to a biological filter for the purification of waste gases comprising a bed of biologically active carrier material consisting of pith extracted from coconut husks,...
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6664101 |
Method for separating CO2 from waste gases, converting it to CH4 and storing same
CO 2 is separated from waste gases by known technical methods and stored in underground cavities. By additions to the CO 2, according to the invention, of H 2 or NH 3 , methanogenic bacteria,...
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6656723 |
Odor controlling composition and methods of making and using
The invention relates to a composition and method for controlling odors, the composition containing an activated lignin-derived complex containing a histosol compound, and optionally containing a...
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6653120 |
Process for reducing volatile organic compound content of refinery liquid waste streams using aqueous solutions containing microbes
A process and apparatus are provided for reducing volatile organic compound content, e.g., benzene content, of a hydrocarbon-containing gas stream, e.g., a refinery waste vapor stream by contacting...
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6648949 |
System for small particle and CO2 removal from flue gas using an improved chimney or stack
A novel stack application for improved carbon dioxide and particle removal/collection from flue gases produced during coal power-generation processes. Flue gas tangential inlet velocity is...
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6569673 |
Garbage disposing device
A garbage disposing device includes a treatment chamber used to decompose food wastes by a microorganism, intake passage, exhaust passage, and a return path extending from a diverging portion in...
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6558548 |
Lagoon covers providing multi-stage waste treatment
The present invention is waste treatment apparatus and process for diminishing the emission of malodorous off-gases during waste treatment. The apparatus typically includes a floatation panel...
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6555364 |
Biological deodorizing apparatus assembled with box-like frame units
It is biological deodorizing apparatus that has an inlet portion ( 1 ), a treating portion ( 2 ) and an outlet portion ( 3 ) in a series, and biologically deodorizes gas in said treating portion....
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6551818 |
Biological filter structures
A cartridge for holding compost in a biofilter is substantially uniform in cross section perpendicular to the axis of the cartridge and has a sidewall formed with openings that are small enough to...
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6534306 |
Modular biofilter unit and method of use
A biofilter apparatus includes at least one container having a height, length, and width containing a deep, low density, porous media within the container. An airflow apparatus is constructed and...
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6524843 |
Process and apparatus for the treatment of carbon dioxide with carbonic anhydrase
A process is disclosed for the extraction, production and purification of carbon dioxide gas. The process may also be employed for the production of aqueous and/or organic solutions of bicarbonate...
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6511844 |
Air purification system and method of using the same
A system and a method for purifying a gaseous contaminated stream are provided. The system and method include a treatment solution that includes at least one non-pathogenic bacteria that digests at...
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6485646 |
Process for the treatment of waste water containing ammonia
A process is described for the biological treatment of waste water containing ammonia, wherein the waste water is treated with sludge containing nitrifying bacteria in an aerated reactor, applying...
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6479276 |
Biological filter apparatus
Air laden with biodegradable volatile organic compounds is passed sequentially through a first filter bed containing a biologically inert filter media and a second filter bed containing a...
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6464384 |
Mixer systems
A system for providing improved bulk liquid mixing and effective gas-liquid contacting for mass transfer of the gas to the liquid, especially a non-Newtonian liquid, the viscosity of which...
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6423534 |
Method for eliminating ethanol in exhaust gas
A method and an apparatus for decomposing and eliminating ethanol in an exhaust gas by bringing the ethanol in the exhaust gas into contact with an ethanol-utilizing microorganism held in a filter...
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6403366 |
Method and apparatus for treating volatile organic compounds, odors, and biogradable aerosol/particulates in air emissions
A biofilter reactor includes a housing, an axial pipe rotatably supported in the housing and including a plurality of perforations that open into the interior of the housing for collecting a...
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6403365 |
Process for bacterial treatment of hydrocarbon effluents that contain isoalkanes
A process for treating hydrocarbon-containing effluents that comprise isoalkanes to reduce the hydrocarbon concentration at least partly is described, characterized in that in the presence of a...
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6391621 |
Process for the treatment of organic gas components
To provide a process for treating gas for decomposing organic solvent and/or other organic gas contained in exhaust gas effectively and simply at low costs to remove the decomposition product of...
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6358729 |
Compact plant for the removal of odorous substances from polluted air
A compact plant for the depuration of polluted air, in particular from odorous substances, comprising a unitary housing in which are placed, in sequence, a prescrubbing section, a filtering bed and...
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6340581 |
Biological production of products from waste gases
A method and apparatus are designed for converting waste gases from industrial processes such as oil refining, and carbon black, coke, ammonia, and methanol production, into useful products. The...
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6294373 |
Method for biological cleaning of a contaminated gas flow
The invention relates to a method for biological cleaning of a contaminated gas flow containing gaseous and/or particulate contaminants comprising the steps of contacting the contaminated gas flow...
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6291233 |
AGB process for integrated multimedia treatment using bio-sorption
An integrated treatment process and apparatus is provided for removing selected contaminants from both liquid and gaseous waste streams. A multistage separation and bio-oxidation substrate is...
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6287873 |
Microbiological desulfurization of sulfur containing gases
A microbial consortium, ATCC 202177, is enriched to remove target sulfur compounds from gases in the presence of ammonia, cyanide, carbon monoxide, and other toxic gases and mixtures thereof. The...
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6271020 |
Two-stage hybrid biofiltration
A hybrid filter system for degrading a sulfur-containing compound having a primary stage sacrificial filter and a secondary stage biofilter is disclosed. This hybrid filter system significantly...
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6261829 |
Process for combating microorganisms
The invention relates to a process of combatting micro-organisms in industrial processes, particularly in the wood processing industry, by adding glucose oxidase and optionally glucose or a source...
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6245554 |
Sewer gas odor abatement system
A system for deodorizing malodorous sewer gas having a tower with a lower gas inlet and an upper gas outlet, malodorous gas passing into the tower through the gas inlet. Packing is positioned...
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6245553 |
Method and apparatus for limiting emissions from a contained vessel
The need to filter gas emanating from a containment vessel is reduced or eliminated by maintaining, within the vessel, a gradient that concentrates most of the gaseous contaminants away from the...
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6221652 |
Process for biological removal of sulphide
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6218174 |
Purification of fluids and control of solute concentrations through selective degasification
Degassing is accomplished by driving a gas-containing solution to a subatmospheric pressure approximately equal to the solution vapor pressure, and maintaining the subatmospheric pressure...
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6218173 |
Engine with microbial reaction purifier
A reaction purifier (100) using microorganisms which feed on harmful components in exhaust gas is installed in an exhaust passage (18, 21, 22, 23, 24) of an engine (1). The microorganisms are mixed...
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6218172 |
Microbiological method for eliminating halogenated ethenes
Process for the microbiological clean up of halogenated ethenes, characterized in that bacterial strains which are growing with ethene as carbon and energy source and break down halogenated ethenes...
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6168711 |
Water supply and drainage type microorganic deodorizing system
The invention relates to a water supply and drainage type microorganic deodorizing system, by which a clogging of deodorizer can be effectively prevented in order to decrease a deodorizing...
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6156205 |
Process for the purification of gases containing hydrogen sulphide
A process for scrubbing a gas containing hydrogen sulphide and/or carbonyl sulphide, in which the spent scrubbing liquid is treated with autotrophic sulphide-oxidizing bacteria capable of oxidizing...
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6143553 |
Process and materials for removing pollutants
A process for removing pollutants is enhanced by using a slurry containing a particulate adsorbent carrying a biologically active material. The pollutant is contacted with the slurry and is...
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6117672 |
Moving bed biofilter and condenser for flue gas pollutant removal and collection
A system for removing particulate, sulfur dioxide, nitrogenous oxides and other condensables from the flue gas of a coal, lignite, or other solid fuel combustor. The system can combine biomass...
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