Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.

Abstract: Method in which a gas and a liquid are mixed and distributed in a chamber that comprises a distribution means that consists of a compartment that is filled with liquid through which a gas stream passes. Said method is characterized in that liquid is injected either in gas countercurrent or in gas co-current into the gas passage section or sections through at least two orifices that are present in said compartment, whereby said two orifices are arranged approximately facing one another, and in that the diameter and the number of orifices and/or the speed V of the liquid at the outlet of each of the orifices and/or the distance d between two injection points placed facing one another are selected such that the Froude number Fr, defined by the equation: Fr = V g × d in which g is the gravitational constant, is greater than 0.5.

Abstract: A method and apparatus for treating a fluid is provided and includes a fluid storage tank for partially containing a fluid and a gas, wherein the fluid storage tank includes a fluid inlet pipe and a fluid outlet pipe. The fluid treatment apparatus also includes a first aeration device, wherein the first aeration device is configured to be in flow communication with the fluid inlet pipe and the fluid portion of the tank cavity. The fluid treatment apparatus further includes a pumping device, wherein the pumping device is configured to cause the fluid portion of the tank cavity to flow through the fluid outlet pipe and a second aeration device, wherein the second aeration device is configured to be in flow communication with the fluid outlet pipe and the fluid portion of the tank cavity.

Abstract: A method and an apparatus for mixing of two fluids. The fluid is caused to flow into a mixing chamber (1). The gas is preferably mixed with the fluid before flowing into the mixing chamber. The chamber is vertically oriented and has a mainly cylindrical shape with smooth interior walls. The fluid is led into the chamber via a nozzle (7) in such a way that the fluid flows into the chamber at high velocity. During operation a turbulent gas/liquid phase is formed in the upper part of the chamber and mainly a fluid phase is formed in the lower part of the chamber. The fluid phase with mixed-in gas is drawn off from an outlet (8) arranged at the bottom of the chamber. The mixer could be connected to a transport pipe for fluid.

Abstract: A dissolving water making unit and a bubble generating unit are provided. The dissolving water making unit includes a gas dissolving device for dissolving gas in water. The bubble generating unit includes a bubble generating nozzle and a bubble generating cartridge. The dissolving water making unit sucks water from a water source, and sucks gas to make dissolving water from a mixed solution in which the water and the gas are mixed together. The dissolving water is obtained by dissolving the gas in the water. The bubble generating unit generates microbubbles from the dissolving water supplied from the dissolving water making unit.

Abstract: A device for homogenizing fuel in the gases of an exhaust system, including: a substantially planar sealing surface surrounding a passage; and a deflector member projecting into the passage from the sealing surface and projecting with respect to the plan of the sealing surface, the sealing surface and the deflector member being formed as a single piece.

Abstract: The invention relates to a gas liquid contactor and effluent cleaning system and method and more particularly to an array of nozzles configured to produce uniformly spaced flat liquid jets with reduced linear stability. An embodiment of the invention is directed towards a stability unit used with nozzles of a gas liquid contactor and/or an enhancer for stable jet formation, and more particularly to reducing the stability of liquid jets formed from nozzles of the gas liquid contactor. Another aspect of the invention relates to operating the apparatus at a condition that reduces the stability of liquid jets, e.g., a droplet generator apparatus. Yet another aspect of the invention relates to operation of the apparatus with an aqueous slurry. Still another aspect of the invention is directed towards to an apparatus for substantially separating at least two fluids.

Abstract: An improved venturi apparatus for facilitating the mixture of fluid substances. The apparatus preferably comprises a first funnel section operative to receive a fluid and channel the same through a first cylindrical section or passageway. The first cylindrical section is fluidly connected to an intermediate passageway having a diameter larger than the first cylindrical section. At least one sidearm passageway is fluidly connected to the intermediate passageway into which at least one second fluid is introduced. The at least one sidearm passageway is preferably configured to fluidly interconnect with the intermediate passageway at approximately the medial portion of the intermediate passageway. Fluidly connected to the intermediate passageway is a second cylindrical section that is operative to direct the flow of the intermixed fluids to a second exit funnel section.

Abstract: A blending system includes a first liquid supply arrangement for providing a first liquid component, a second liquid supply arrangement for providing a second liquid component, a mixing arrangement for mixing the first and the second liquid components to form a blending liquid, and a mass flow measuring device for determining the mass flow of the blended liquid at a location downstream of the mixing arrangement. The blending system further includes a control arrangement for controlling the first and the second liquid supply arrangements in response to the mass flow measuring device. The mass flow measuring device may also measure the density and/or volumetric flow of the mixed liquid. The blending system may also be setup without a holding tank.

Abstract: The inventive nozzle comprises a first releasing stage (1) for producing a pre-release by absorbing from 5 to 20% of available pressure, a second releasing stage (2) wherein a substantial release is carried out and the pressurised water passes from a saturation pressure to an output nozzle pressure, an intermediate chamber (3) in the form of a transition chamber in which the pressurised water approaches the saturation pressure by absorbing from 5 to 30% of the available pressure and an outlet tube (3) consisting of a sudden release and cavitation confinement tube whose minimum length (1) substantially corresponds to a distance separating the end of said tube on the second release stage side from a readhesion point of jets to the tube wall at the angle of divergence (alpha) thereof ranging from 3 to 12 DEG before readhesion.

Abstract: An aeration pool or tank has a bottom piping assembly with an inlet at the bottom thereof and an outlet remote from the tank a distance vertically below the inlet, and an air inlet piping assembly having an inlet above the water surface and an outlet within the tank adjacent to the inlet of the bottom piping assembly. Water under pressure flows from the tank by gravity through the bottom piping assembly and draws air through the air inlet piping assembly, mixing it with the exiting water and the aerated water flows into a second body of water across a paddlewheel to disburse the aerated water into the second body of water and create circulation to absorb additional oxygen at the surface of the second body of water. A water circulation piping assembly in the tank creates turbulence and circulation within in the water in the tank.

Abstract: A direct contact steam injection heater that includes a steam diffuser having a plurality of steam diffusion holes that are selectively exposed by a regulating member to control the amount of steam used to heat a liquid. The regulating member is movable within the steam diffuser and the steam diffuser includes a seating member to prevent the flow of steam from the diffuser when the regulating member is in a completely closed, seated position. At least one sealing members selectively exposes the steam diffusion holes in the discharge region of the steam diffuser when the regulating member moves between the open and closed positions. The spacing of the steam diffusion holes along the steam diffuser can be varied depending upon the desired resolution of the steam released as the regulating member moves between its fully closed and fully open position.

Abstract: The invention relates to a method and a device in a steam injector. The steam injector is of the type which includes an injector housing with an inlet for steam and an inlet for the product which is to be treated. In the injector housing there is also an outlet for the ready-treated product. In the injector the steam is brought together with the product. The device includes a throttle washer which is placed immediately after the product outlet. The throttle washer entails that the pressure is raised immediately before the product leaves the injector. The pressure increase entails an improved steam distribution in the product and that the risk of sedimentation in the product is counteracted. The device also entails that disturbing noise that may occur in the injector is considerably reduced.

Abstract: Device for absorption of at least one component chosen among gas and vapour in a liquid based on an ejector principle, comprising a mixing zone in the form of a substantially straight tube (5) immediately downstream of the ejector (1). The device comprises an ejector (1) with central liquid passage (2) and a substantially annular, sectioned aperture (4) for gas/vapour. The gas aperture (4) generally surrounds the central liquid passage (2) and the annular, sectioned aperture (4) for gas/vapour is designed in a manner to cause the gas/vapour to enter the mixing zone with a velocity component that is inclined to the periphery surface of the tube to thereby provide a helical flow (6) downstream of the ejector (1).

Abstract: Apparatus and processes for quenching a pyrolysis furnace effluent are provided. In one embodiment, a hydrocarbon stream comprising gas and oil vapor can be quenched with a first quench water stream to form a mixed vapor-liquid stream. The mixed vapor-liquid stream can be fed to a water quench tower to separate the vapor and liquid. The separated vapor can be further quenched with a second quench water stream in the quench tower to form an overhead vapor product comprising light hydrocarbons. Water and liquid hydrocarbons can be collected from the quench tower in an oil-water separator. The liquid hydrocarbons can be recovered from the oil-water separator. Water can be recovered from the oil-water separator. A portion of the recovered water can be cooled. The cooled water can be recycled to the first and second quench water streams.

Abstract: An object of the present invention is to provide an air bubble generation apparatus constructed in a simple structure and capable of generating fine air bubbles. Such an apparatus comprises: an apparatus body 9 having a circular column-like internal space defined by a cylindrical inner surface 3a and circular inner surfaces 5a and 7a; at least one internal cylindrical member 21 disposed within the internal space away from the cylindrical inner surface 3a; a first fluid introduction section 31 for injecting a first fluid into a tubular space between the cylindrical inner surface 3a and the internal cylindrical member 21 toward a circumferential direction; and a second fluid introduction section and a gas and liquid mixture discharge port 51, which are disposed in the circular inner surfaces 5a and 7a, respectively.

Abstract: A compact, improved injector-mixer for injecting and thoroughly mixing fine bubbles of air into a contaminated water stream from a fish tank is disclosed. Water is pumped down through an injection section of the present invention where air is injected into the stream by an improved Venturi construction. The mixture then flows into an improved mixing section, vertically disposed within a protein skimmer chamber, where it is thoroughly mixed such that the plethora of small air bubbles have a greater chance to bond with the contaminants of the water, the contaminants becoming buoyant as a result. Upon introduction of the mixture into the protein skimmer chamber, the bubbles of air and contaminants attached thereto rise to the top of the protein skimmer column to be contained, while the filtered and oxygenated water is returned to the tank through a base of the protein skimmer chamber.

Abstract: An improved venturi apparatus for facilitating the mixture of fluid substances. The apparatus preferably has first funnel section operative to receive a fluid and channel the same through a first cylindrical section or passageway. The first cylindrical section is fluidly connected to an intermediate passageway having a diameter larger than the first cylindrical section. At least one sidearm passageway is fluidly connected to the intermediate passageway into which at least one second fluid is introduced. The at least one sidearm passageway is preferably configured to fluidly interconnect with the intermediate passageway at approximately the medial portion of the intermediate passageway. Fluidly connected to the intermediate passageway is a second cylindrical section that is operative to direct the flow of the intermixed fluids to a second exit funnel section.

Abstract: The invention is intended to produce high-pressure light fuel gas with good combustibility by contacting and reacting high-temperature, high-pressure water and heavy oil with each other in a contact-reaction unit to extract light oil components from the heavy oil and to remove metals. The high-temperature, high-pressure water and the heavy oil are introduced to the contact-reaction unit for contact and reaction with each other therein. Heavy oil components not dissolved in the high-temperature, high-pressure water are separated by precipitation from hydrocarbon gases and light oil components which are dissolved in the high-temperature, high-pressure water. The separated heavy oil components are burnt or incinerated without any further modification.

Abstract: Systems and methods are disclosed herein that provide for liquid waste aeration.

Abstract: An improved configuration for an in-line direct contact diffuser-type steam injection heater provides for a diffuser whereby steam flow is controlled using an angled sonic diffuser and plug arrangement. The steam flow is controlled by means of a steam plug which selectively exposes holes through which the steam passes. In the preferred embodiment, the configuration provides for a diffuser that had been angled approximately 30° from vertical to facilitate better mixing of the steam with the fluid. The precise angle may be altered depending on the fluid characteristics. A more durable end seal is also used. The end seal is a piston ring which prevents problems associated with the use of elastomeric rings of existing art. A more uniform diameter plug with linear travel is also an improvement over the prior art.

Abstract: A system and method for inhibiting and precluding the buildup and offgas of offensive odors and corrosive sulfuric acid in wastewater in a variety of locations in a sewage system through the use of superoxygenation. The system comprises an oxygenator having an inverse conical section for a downward flow of oxygen gas injected into the sewage stream prior to entering the oxygenator. In one embodiment, the system is inserted directly into the main sewage stream, while in another embodiment, the system is used to treat a sidestream from the main sewage stream.

Abstract: An injector assembly that forms means for gasifying a slurry by expanding the infeed bore within the injector assembly having a source of ambient air in communication therewith whereby the negative pressure created draws air into the slurry prior to injection into a flotation cell whereupon the contaminants within the slurry combine with the air bubbles forming a foam at the surface of the cell that is passively directed into a reject nozzle leaving a decontaminated slurry, known as the accept, which is channeled therefrom for further processing.

Abstract: An improved venturi apparatus for the incorporation of air into a liquid. The preferred embodiment of the invention comprises a funnel section, a cylindrical section, and a frusto-conical section. Lateral tubes extend from the cylindrical section so as to form an acute angle relative to the central axis of the cylindrical section, thereby preventing leakage of liquid out through the lateral tubes during use and subsequent handling.

Abstract: A gas injector that is coupled to the pump strainer basket housing drain port of a pump-circulated system is disclosed. The gas injector that may be installed in a way that is less invasive than currently used gas injection systems to pre-existing plumbing of a pump system and that allows for more efficient gas absorption in water than currently used gas injection systems. The gas injector may be used with all currently existing pump systems.

Abstract: The present invention relates to a nozzle unit for the supply of gas into a liquid comprising two or more annular nozzles one after the other in the direction of flow. The nozzles are angled to give a restriction in the direction of flow, and each nozzle overlaps the following nozzle. Each nozzle has one or more apertures for the supply of gas at the overlap.

Abstract: The invention relates to an eddy chamber for generating turbulence in a medium flowing through the chamber, comprising an inlet opening, an outlet opening and at least two constrictions in the cross-section thereof. In the region of the constrictions, the inner profile of the eddy chamber has the form of wave crests (10, 12, 25, 27, 30) in section parallel to the longitudinal axis thereof. According to the invention, the mixing may be improved and the pressure drop held small, whereby the angle to the longitudinal axis (z) in the direction of the outlet opening (15, 31) at the inflection points (12a, 25a, 27a, 30a) on the flanks of at least two wave crests (10, 12, 25, 27, 30) facing the inlet opening (9, 23) is larger.

Abstract: A device for condensing volatile organic compounds (VOC) from a storage or transport tank (4) into oil from the same or another storage or transport tank (4) via a downcomer (6), where the upper part (8) of the downcomer (6), which upper part has a cross sectional area that is essentially unreduced, is connected to a gas pipe (14), the gas pipe (14) communicating with the upper part (16) of the storage or transport tank (4), and where the upper part (8) of the downcomer (6) is arranged at a sufficient height above the upper part (16) of the storage or transport tank (4) to cause an inflow of gas from the upper part (16) of the storage or transport tank (4) due to the underpressure created in the upper part (8) of the downcomer (6) when oil flows down through the downcomer (6).

Abstract: An apparatus and method are disclosed for cooling one or more exercising or resting individuals by applying a water mist and dry air. The apparatus can be free standing, fixed to the walls or ceiling, or attached to an object on which an individual is resting or exercising. The mist and dry air can be applied together or separately, simultaneously or alternately, with varying timing and intensity. In some embodiments, the mist and dry air are manually controlled or operate according to the passage of time. In other embodiments the need for cooling is determined by one or more physiological parameters measured by sensors directed toward or attached to an individual, or embedded in an object on which an individual is resting or exercising. Still other embodiments estimate the heating of the individual by measuring the amount of work performed or the rate of energy expenditure.

Abstract: The invention relates to a method and a device for foaming glue for the production of wood-based sheets. Gluing substance and gas are fed (1,2) into the foaming device through nozzles (3,4), which are directed to mix the gluing substance and gas to be fed to form an essentially homogenous mixture prior to foaming. After this the gluing substance is foamed mechanically in the foaming chamber (5) with the aid of gas.

Abstract: A frothing device adaptable to a steam outlet for producing milk froth comprising a steam inlet, a milk inlet, an air inlet, a vacuum chamber adapted to receive steam, liquid milk and air therein, a restriction with a limited cross-section adapted for conducting the product there through at high velocity, an emulsifying chamber; the emulsifying chamber having an outlet for draining the product froth out of the chamber and a froth flow regulation system configured for breaking the kinetic energy of the froth stream and for changing its direction sufficiently so that the froth is gently delivered out of the device. The frothing device can be mounted on a coffee machine to deliver cappuccino upon a push of a button.

Abstract: A device for controlling a dissolved amount of gas. The device is formed of: a pressure reducing part constructed by connecting a hole provided at an upper part of a closed tank to a vacuum pump through a pipe; an injection supply part for injecting fluid to be treated pressurized by a pressurizing pump from the upper part of the tank; a liquid foam generating container where the injected fluid to be treated is received, then gas of the reduced pressure space is involved in, and an air bubble group rises along an inner peripheral wall and is separated from the liquid, and then changes into liquid bubbles in an upper region; a recovery pump part for allowing the liquid bubbles having overflowed from the container; and a tank water level sensor part for maintaining a water level of the treated fluid.

Abstract: There is disclosed a fuel nozzle, a pre-combustion fuel mixing device, and methods related to fuel processing. In an embodiment, a fuel nozzle includes at least one port for receiving fuel, a sidewall forming ports for introducing fuel into a pre-combustion chamber, and a plurality of conduits formed between the first end and the sidewall. In one embodiment, a method includes creating a gaseous, homogenous premixture of fuel and oxidizer in a first pre-combustion vortex chamber, which includes introducing fuel at an axis of the oxidizer vortex both axially and radially through an injector having a plurality of ports through a sidewall arranged in a plurality of rows substantially parallel to one another. In an embodiment, an apparatus includes a pre-combustion fuel mixing device having a housing with a first pre-combustion vortex chamber having a first compartment, a second compartment, and a third compartment.

Abstract: A water faucet includes a faucet body, an ozone generator, a control ring, a nozzle head, an aerator, a mounting seat and a control valve. Thus, the water flowing outwardly from the nozzle head of the water faucet is mixed with ozone supplied by ozone generator to provide sterilizing, disinfecting, bleaching and odorizing functions by provision of the ozone.

Abstract: The invention relates to an apparatus for the gas treatment of mains water in the inflow of a domestic fitting (16), having a connection (12) for a gas source, and having a device (8) for supplying the gas into the mains-water stream. The invention provides the following features: a. the apparatus is designed as a unit which is capable of forming part of the substructure and has a watery inlet, a gas inlet and an outlet for the water or gas-treated water, b. it has a pressure sensor (4) which is assigned to the water main and is designed for emitting a first control signal when the water pressure drops below a predetermined threshold value, c. it has a control unit which is intended for releasing the gas supply and is designed for activating the device for supplying the gas into the mains-water stream as soon as it has received the first control signal from the pressure sensor and an additional, second control signal.

Abstract: A water purifying apparatus includes a tubular portion having an inlet for receiving water and an outlet for emitting the water, and a nozzle portion disposed inside the tubular portion to allow the water flowing through the tubular portion to pass therethrough. The nozzle portion has a nozzle opening for discharging the water toward the outlet. The tubular portion is provided with air supply means for mixing air taken in from outside the tubular portion with the water discharged from the nozzle opening. The nozzle opening has a shape defined by one line segment or a combination of a plurality of line segments.

Abstract: An injector of a flotation cell, the injector comprising a feed pipe for feeding a fiber suspension flow into the flotation cell, a mixing apparatus for mixing air into the fiber suspension flow and at least one air feed connection arranged before the mixing apparatus for feeding air into the injector. The injector further comprises a nozzle section which is arranged before the mixing apparatus and comprises an aperture plate provided with apertures and nozzles fixed to the aperture plate substantially at the apertures after the aperture plate, there being open spaces between the nozzles. The air to be fed from the air feed connection is arranged to flow into the spaces between the nozzles and further into the mixing apparatus with the partial flows of the fiber suspension flow entering from the nozzles.

Abstract: An apparatus for creating microbubbles of gas in a liquid. A vertical pipe member is adapted to receive a liquid-gas mixture having gas bubbles of larger diameter therein. A series of horizontally-extending apertures are provided to permit the pipe member to expel such liquid-gas mixture radially outwardly from such pipe member. The expelled liquid-gas mixture may contact the sides of a containment vessel. In a refinement of the invention, a specific relationship is further specified between the exit area of the apertures and the interior cross-sectional area of the pipe member, in order to most suitably convert the gas bubbles in such liquid-gas mixture to microbubbles of a desired small size when expelled under pressure from such pipe member via such apertures. A method of converting gas bubbles in such liquid-gas mixture to gas microbubbles is further disclosed.

Abstract: A vacuum venturi apparatus includes a plug with a first opening, a second opening and a third opening. The first opening is located in the plug so as to receive fluid from a source of fluid and the first opening has a single uniform diameter. The second opening in the plug is connected to the first opening and the second opening has a first diameter and a second diameter and the first diameter is larger than the second diameter and the second diameter is the same as the single uniform diameter of the first opening. Further, the second opening second diameter is connected to the first opening. The third opening is located in the plug and is open to the atmosphere. The third opening has a first diameter and a second diameter and the first diameter is larger than the second diameter and the second diameter is smaller than the single uniform diameter of the first opening, Further, the third opening second diameter is connected to the first opening.

Abstract: A chlorine dioxide generator comprises a water eductor surrounded by a variable volume plenum. The plenum casing is threaded onto the venturi body, permitting the plenum volume and area to be modified depending on the capacity required. Chlorine and sodium chlorite may be fed tangentially into a conical plenum and reacted therein to form chlorine dioxide, which is discharged into water passing through the eductor at the venturi throat.

Abstract: A hazardous substance removing apparatus according to the present invention comprises a bath in which a liquid collecting agent collecting a hazardous substance in gaseous form is stored, a suction tower of a cylindrical or almost cylindrical shape, which suctions the hazardous substance in gaseous form from a top opening of the tower itself, blends the hazardous substance with the collecting agent injected from a plurality of nozzles arranged inside the tower itself, and sends the blend to the bath via a bottom opening of the tower itself, an emission tower which is open into the bath via a bottom opening of the tower itself, and can make emission via a top opening of the tower itself, and a pump which pumps up the collecting agent within the bath. In the suction tower, the plurality of nozzles are arranged to make the collecting agent injected from the nozzles form a flow along an inner wall.

Abstract: A fuel cell system including a fuel reforming processor having a catalyst therein constructed and arranged to produce a reformate stream including hydrogen and carbon monoxide, a water gas shift reactor downstream of the fuel reforming processor and wherein the water gas shift reactor includes a catalyst therein constructed and arranged to reduce the amount of carbon monoxide in the reformate stream, a preferential oxidation reactor downstream of the water gas shift reactor and wherein the preferential oxidation reactor includes a catalyst therein constructed and arranged to preferentially oxidize carbon monoxide into carbon dioxide and to produce a hydrogen-rich stream, and a fuel cell stack downstream of the preferential oxidation reactor constructed and arranged to produce electricity from the hydrogen-rich stream, a first direct water vaporizing combustor constructed and arranged to combust fuel producing a high-temperature fuel combustion byproducts exhaust and to produce steam from water sprayed into th

Abstract: A conduit system for a lithographic apparatus is disclosed, the conduit system including a conduit configured to guide a liquid or liquid-gas mixture, and a gas injection nozzle configured to introduce a gas in the liquid or liquid-gas mixture to at least partially absorb pressure peaks or waves in the liquid or liquid-gas mixture. In an embodiment, the gas injection nozzle may be arranged in a pump of the conduit system. The pump further includes a pump inlet, a pump outlet and a pump chamber between the pump inlet and the pump outlet arranged for compression of the liquid or liquid-gas mixture.

Abstract: A system for concentrating gas, using the concentrated gas to pump liquid, and recycling the gas and liquid is disclosed. The system comprises a body of liquid, a down pipe in fluid communication with the body of liquid, a gas injection apparatus for introducing gas into the liquid that passes through the down pipe, a separator for separating compressed gas from the liquid, and a gas-liquid recycle loop. The down pipe and the gas injection apparatus are structured and arranged to compress the gas. The gas-liquid recycle loop comprises a compressed gas storage vessel containing the separated gas, a reservoir containing liquid separated from the compressed gas, and a gas-liquid pump. The gas-liquid pump has a gas inlet in communication with the gas storage vessel, and a fluid inlet in communication with the reservoir. The gas-liquid pump is structured and arranged for pumping the liquid back to the body of liquid and delivering the gas to the gas injection apparatus.

Abstract: The present invention generally offers a system and a method that allows a vessel to treat water while providing corrosion inhibition. An oxygen stripping gas source produces oxygen stripping gas that may be pumped directly to, preferably but optionally, a venturi injector, or may first be pumped into an empty tank and then delivered to the injector means. Water being pumped through the injector via a transfer piping means comes into contact with the oxygen stripping gas, and dissolved oxygen in the water transfers to micro-fine stripping gas bubbles generated by the injector. The water and the micro-fine bubbles are pumped from the injector and into the tank, where the micro-fine bubbles float to the surface, and the oxygen is released into the tank's headspace. The deoxygenated water may be re-circulated through the system for additional deoxygenation or released from the tank into the surrounding waterways.

Abstract: A process fluid treating apparatus includes an ejector assembly fluidically connected to a process fluid supply assembly. A Coanda airfoil is located in the ejector assembly. Primary fluid is injected into the ejector duct to form a Coanda layer. A process fluid, or part of it, flows toward the ejector assembly through the process fluid assembly, which gradually turns that process fluid towards fluid treating channel formed adjacent to the Coanda layer. Shear and other forces and pressure gradients associated with the Coanda layer serve to pump or assist in pumping the process fluid from the source and to operate on the process fluid to atomize it, to pulverize, or de-agglomerize solid particles entrained in the process fluid, to produce high mass flow rate of the process fluid and to provide aerosol down to micron and sub micron mean droplet diameter size.

Abstract: A device and method for generating micro bubbles in a liquid. The method includes the steps of: providing a flow-through channel containing at least two local constrictions of flow therein; passing the liquid at a velocity of at least at least 12 m/sec through a first local constriction of flow to create a first hydrodynamic cavitation field downstream from the first local constriction of flow; introducing a gas into the liquid in the first local constriction of flow, thereby creating gas-filled cavitation bubbles; collapsing the gas-filled cavitation bubbles formed in the first hydrodynamic cavitation field to dissolve the gas into the liquid, thereby forming a gas-saturated liquid; passing the gas-saturated liquid through a second local constriction of flow to create a second hydrodynamic cavitation field downstream from the second local constriction of flow; and extracting the dissolved gas from the gas-saturated liquid, thereby generating micro bubbles in the liquid.

Abstract: A circulation water vortex bubble generation device is emerged in culture water of an aquaculture pond. The device includes a barrel having a central bore and front and rear open ends, a cover attached to the rear end of the barrel, and a nozzle mounted to the front end of the barrel. A water supply pipe is connected to the barrel in an off-center manner to supply water into the central bore. An air pipe is connected to the cover and in fluid communication with an air chamber defined inside the cover. An air guide tube in fluid communication with the air chamber extends from the cover through the central bore of the barrel. The nozzle forms a rearward-diverging conic water guide opening in a rear portion thereof, and in communication with the central bore. The nozzle also forms a water discharge opening in a front portion thereof and a water passage connecting between the water guide opening and the water discharge opening.

Abstract: An apparatus for creating microbubbles of gas in a liquid. A vertical pipe member is adapted to receive a liquid-gas mixture having gas bubbles of larger diameter therein. A series of horizontally-extending apertures are provided to permit the pipe member to expel such liquid-gas mixture radially outwardly from such pipe member. The expelled liquid-gas mixture may contact the sides of a containment vessel. In a refinement of the invention, a specific relationship is further specified between the exit area of the apertures and the interior cross-sectional area of the pipe member, in order to most suitably convert the gas bubbles in such liquid-gas mixture to microbubbles of a desired small size when expelled under pressure from such pipe member via such apertures. A method of converting gas bubbles in such liquid-gas mixture to gas microbubbles is further disclosed.

Abstract: Various venturi configurations are described that are particularly significant for ballistic aerosol marking (BAM) applications. The specific venturi geometries enable the printing of lines having sharp edges and particular widths, using relatively low pressures.