FLOWING LIQUID ASPIRATES GAS

A fluid eductor for injecting a secondary fluid e.g. air, oxygen, ozone or other reactant fluids into a primary fluid, e.g. oxygen, waste water, depleted water, sewage fluids or other reactant fluids flowing in a conduit. A spool housing having a generally cylindrical header assembly interior thereof...     

A whirlpool jet for bathtubs having a water outlet extending through a circular opening in the bathtub wall and threadedly connected to a housing. The outlet has an annular radial flange abutting against the inside of the bathtub wall. The flange has a pair of diametrically spaced openings for use in...     

This invention relates to the mixing of gases with liquids and particularly aeration of predominantly water based liquids. The invention provides an apparatus for promoting gas/liquid exchange in a liquid impoundment in which a riser tube is disposed vertically in the liquid. Flow of the liquid up the...     

In larger sewage water systems, there is a risk that the water may become rotten due to lack of oxygen. According to the invention, this problem is solved by letting the pump in a pump station of the system act as an aerator as well as a transporter of the water. To aerate the water, the outlet of the...     

A liquid aeration device includes a head box having a bottom wall, a pair of spaced side walls interconnected with the bottom wall, and a pair of spaced transverse walls interconnected with the side and bottom walls to form a receiver chamber into which liquid to be aerated is fed and from which such...     

A device for aerating liquid in a tank comprises a rotating body having vanes which contact the surface of the liquid. A splash guard is disposed above the body to reflect into the tank liquid droplets discharged upwardly by the body.

The invention pertains to an apparatus for purifying polluted water, which comprises the combination of a screen to be immerged into the water, means for generating a water jet under said screen with respect to the water level, and means for injecting atmospheric air in said water jet.

A self-contained waste-liquid extraction, aeration and return system including an aspirator having an elongate mixing chamber downstream of the aspiration point and a liquid pump carrying the aspirator in a unit which is independent of the structure or of the liquid circuit of the system to which it...     

A soluble gas such as oxygen is dissolved in a liquid such as aqueous sewage liquors by introducing the gas into a stream of the liquid and passing the resultant stream downwards into a body of the liquid through a conduit of divergent cross-section in the direction of flow of the liquid.

A vessel is provided for a liquid, and a centrifugal aerating arrangement is provided in the vessel. The aerating arrangement includes a hollow substantially disc-shaped rotor mounted for rotation in the vessel and having a hub, a periphery which is formed with a plurality of outlet openings communicating...     

A rapid and efficient method for disinfection of waste liquid such as sewage effluent by means of a fluid disinfecting agent, (e.g. ozone or chlorine) in which the disinfecting agent and all of the waste liquid to be treated pass through a turbulent flow zone within a limited period of time. Also disclosed...     

An ejector assembly adapted to intermingle a gas, such as chlorine, with process liquid or water to form a solution which is discharged from the assembly. Included in the assembly is an ejector body within which is disposed a nozzle whose output is spaced from the inlet of a throat to define an interaction...     

A liquid aeration device comprises a receiver chamber having bottom and side walls and arranged to receive liquid to be aerated and including an aerator wall in which orifice means is formed through which water to be aerated flows, a vertically disposed downcomer conduit atop which said receiver chamber...     

Drop line devices for the supply of fluid cargo to the bottom of a tank, especially in combination with cargo circulation units comprising pump means for driving the cargo from and back to the tank. The devices comprise a conduit for arrangement substantially vertically in the tank. The upper end of...     

A housing has an interior casing receiving a coolant. This casing is associated with a forced cooling system and has open ended tubular portions therethrough formed of electrically conducting metal. Glass ozone generating tubes are removably supported in the tubular portions by axial movement and are...     

Disclosed is a variable venturi type carburetor comprising a movable suction piston. The suction piston has a needle entering into a stationary jet. The needle and the jet defines an annular opening through which the fuel is injected into the intake passage formed in the carburetor. The fuel recirculating...     

An aerator for bodies of water comprises a submerged water intake with a filter on it, that leads to the axial inlet of a centrifugal pump of the type that can handle substantial quantities of air. An air inlet to the axial pump inlet introduces the air centrally into the pump chamber, where it is admixed...     

A system for spray cooling large quantities of heated water has a plurality of spray forming means each consisting of a plurality of associated nozzles connected by piping to pumps, each of the associated nozzles having an outlet constructed and arranged to discharge the water in a coherent stream which...     

An oxygenating centrifugal pump is primarily for circulating the aerated water in a culture pond for improving water quality. The centrifugal pump generally comprises a flat-bottomed cuplike vessel having a pair of floaters for floating said pump on a water and a plurality of pipy legs for locking the...     

A low-cost, motor-less carbonator has a housing having a fill chamber and a carbonation chamber. The chambers are maintained at different pressure levels to create a fluid movement from the fill chamber to the carbonation chamber. The fill chamber can be vented to allow a low pressure water feed to refill...     

An apparatus for generating bubbles in a liquid is disclosed which has a liquid spouting nozzle element for violently spouting a pressurized liquid, an impact disperser for generating a dispersion stream of the pressurized liquid directed into the liquid surrounding the impact disperser when the spouted...     

A fluid injector for the introduction, dispersion and mixing of a first fluid into a second fluid flowing through a conduit. The injector comprises an elongated body mounted in fluid-tight fashion through an aperture in the side of the conduit so as to extend transversely of the interior of the conduit...     

In a hydro-massage jet fitting for a hot tub wherein the fitting includes a venturi air-induction system which mixes air with water before pumping the water into the tub, there is disclosed an improvement wherein the passageway to conduct air to the fitting extends through the side wall of the tub to...     

An aerator for the biological purification of waste water comprises an undulating annular disk of sheet material, centered on a vertical axis of rotation, forming interleaved sets of upper and lower sectors interconnected by generally vertical, radially extending webs. Each lower disk sector defines...     

A water jet nozzle comprises an inlet pipe extending into a converging conical section of an outlet pipe, with a narrow annular opening between the inlet pipe end and the outlet pipe inner wall. The outlet pipe also has a straight section in continuation of the smaller end of the converging conical section...     

Disclosed is a variable venturi type carburetor comprising a movable suction piston. The suction piston has a needle entering into a stationary jet. The needle and the jet defines an annular opening through which the fuel is injected into the intake passage formed in the carburetor. The jet is connected...     

Apparatus and method for dissolving gas in a body of liquid comprising a gas/liquid contactor device having a plurality of discrete conduit sections of different cross-sectional area connected in series or in parallel. A stream of liquid is passed through the device and gas is introduced into the stream...     

An improved method for aerating and mixing waste water which is circulated through a plurality of passages in submerged mixing chambers from an inlet to outlet of each wherein gas is mixed with the water, preferably by forming two parallel streams. To flush debris from the mixing chambers and conduits:...     

An improved method and system for mixing gas with waste water in which the water is pumped through a plurality of mixing chambers into which the gas is injected at a step surface to form parallel streams of gas and water. An extending chamber contains the parallel streams as the interface between them...     

A steam injector, more particularly for use in the food and chemical industries for heating flowable product such as milk, comprises a stack of discs in an injection chamber. Central holes in the discs together define a central passage for the flowable product, and parallel chordal channels in each disc...     

A process for clarifying by flocculation a turbid liquid which forms a foam with injected gas and which contains material that, with gas, will form a floatable floc. A gas compatible with the liquid is injected into the liquid in order to form foam atop the body of liquid, and components of a floc within...     

The invention relates to a system for treating liquid such as aqueous liquor with a gas that is sparingly soluble therein by introducing the gas into a pressurized stream of the liquid at a sufficient rate to dissolve some of the gas in the stream and additionally to form finely dispersed bubbles of...     

A method and apparatus for the treatment of gaseous and particulate material in combustion products and similar fluid discharges, in which the discharge is first subjected to a water spray, any excess water remaining thereafter separated therefrom, the washed discharge placed under a pressure of from...     

Altitude compensation apparatus for use with a carburetion system for an internal combustion engine, the system having a passage through which air is drawn into the engine, a throttle valve positioned in the passage and movable between an open and a closed position to control the flow of air therethrough...     

An apparatus for manufacturing gasified liquids. A Venturi-type device is provided at a water inlet of a deaerating vessel of the apparatus to deaerate the water. A mixing and metering stage connected to the deaerating vessel is controlled by a regulating valve. A precarbonating device is positioned...     

A method and an apparatus for promoting gas-liquid reaction in a reactor comprise pumping the reacting liquid to a predetermined height in a flow conduit. Gas is admitted to the liquid flow course to affect entraining gas in the flowing liquid and forming a gas-liquid mixture in the flow conduit. Said...     

A mixing device and method of mixing a liquid, vapor, or gas into a slurry of material in a vat in which the liquid, vapor, or gas is introduced into a stream of the slurry passing from the vat through a venturi at the diverging portion of the venturi, and in which the slurry with the entrained liquid,...     

A process and apparatus for mixing a gas with a liquid in a reactor vessel, in which a gas-liquid downward flow results in the pressurization of said gas in a separation chamber. The separated liquid in said chamber is injected back into the reactor by a pump means for generating jet streams while the...     

A sewage treatment process wherein sewage is passed into a deep subterranean shaft is improved by passing a liquor of the sewage into the subterranean shaft through an inner shaft which extends only partway down into the subterranean shaft. Located at the lower proximity of the inner shaft is a mixing...     

A machine which utilizes hydraulic effects to disperse gas bubbles throughout a contained liquid includes a feed duct mounted to introduce raw liquid into the contained liquid. The feed duct comprises a first hollow tubular member into which a stream of processed liquid is pumped. A second hollow tubular...     

An angularly adjustable liquid outlet nozzle for directing a stream of fluid under pressure into a body of fluid has a unitary body with an inlet opening at one end communicating with a mixing chamber through a venturi air inlet, and an outlet opening at the other end in which is seated a directional...     

An aerator for the treatment of liquid by immersion in the liquid to form in the liquid a liquid stream and introduced gas bubbles. The stream is to be produced with efficient use of power to have sufficient bubbles small enough to avoid waste by bubbles reaching the surface too quickly. The aerator...     

A method and apparatus for the purification of water with ozone and ultraviolet radiation. Oxygen-containing gas, such as air, is directed to flow in a confined path past an untraviolet radiation source, such as a mercury vapor lamp. The absorption of ultraviolet radiation by oxygen produces ozone which...     

A waste treatment tank has a cylindrical enclosure defining a chamber. A cylindrical side wall of the enclosure and a cylindrical baffle are arranged concentrically with respect to one another. The side wall and baffle divide the chamber into first and second chamber portions. Means for generating a...     

A whirlpool system has a pair of channels which connect sources of water and air to a plurality of outlets in a water receptacle. Each of the channels is formed in a continuous piece of tubing which is connected to the outlets by a plurality of connector assemblies removably mounted to the tubing between...     

An improved system for aerating and mixing waste water which is circulated through a plurality of passages in submerged mixing chambers from an inlet to outlet of each wherein gas is mixed with the water, preferably by forming two parallel streams. To flush debris from the mixing chambers and conduits:...     

A live bait water aerator comprises a submergible water pump, a conduit attached to the water outlet of the pump, leading vertically upward above the water surface, ending in a water delivery head having a plurality of delivery holes set at an angle relative to the surface of the water. A method of aerating...     

An outlet for use with spa pools or the like where water and air are mixed by a "Venturi Pump" to provide a water/air stream, the outlet having a direction control device for controlling the direction of the water/air stream, the "Venturi Pump" being located within the direction control device.

An aerator for a spa, therapy pool, bathtub or the like is formed of a mixer body having side-by-side parallel air and water conduits and a mixture outlet port extending radially of the air conduit. A water jet nozzle extends from the water conduit into the air conduit to project water across the air...     

A method of and an apparatus for aerating and circulating a liquid in a vessel comprising utilizing a surface aerator and a bottom mixing rotor mounted on a hollow common shaft. The rotor entrains liquid and air into the hollow center of the common shaft from the liquid surface region and affects a downward...     

The invention relates to a gas injection or aeration device of the kind which is adapted to be immersed in a liquid and supplied with gas under pressure so that the gas emerges through diffusion nozzles of the device as a large quantity of small bubbles to form a gas/liquid mixture. According to the...     

A fermenter for cultivating of microorganisms has a container bounding an inner chamber in which microorganisms are accommodated to be cultivated, and at least one diaphragm filter unit which is introduced into the inner chamber, so that the products of metabolism of the microorganisms are continuously...     

Energy amplifier apparatus includes a pair of vertically extending concentric cylinders, with air entrained in water flowing downwardly through the inner cylinder to a separator where the air is separated from the water. The falling water compresses the entrained air and a separator in the inner cylinder...     

A static diffuser for use within the water tank of an ozonator system. The diffuser comprises a depending water pipe into which water is fed under pressure by an external pump. The lower end of the pipe flares outward and has an internal fixed cone which combines with the flared end of the pipe to provide...     

Apparatus for supplying air into a liquid can be used as an aeration apparatus for a biochemical waste water treatment system operating according to an activated sludge process, for example, or as an air bubble generator to be used in a solid particle flotation system. A liquid in a tank is circulated...     

Arrangement for sucking-off gases, creating by means of water supplied to an annular nozzle surrounding the outlet of a gas conduit and forming a first hydraulic pump with a vortex, thereby mixing the gas and water thoroughly and sucking off the mixture by a second annular water nozzle into an ejector...     

A removable light-weight, apparatus for the aeration of a body of water or other liquid in a tank or a pool having a submerged liquid source or inlet port supplying a continuous or a sporadic stream of liquid into said tank, said aeration apparatus comprising an air induction tube extending between and...     

A disinfectant system for intermingling a disinfectant with an effluent to be treated, such as wastewater, to kill pathogens therein, the system enhancing contact between the effluent and the disinfectant to effect a rapid and efficient disinfection action. The system includes an ejector through which...     

An aerator which is attached to a water faucet includes a flow control disc at its upstream end for providing a restricted water passageway and includes air passage means for directing atmospheric air at the stream of water to mix the air and water at the upstream end of the aerator.

A surface aerating rotor has an intake zone for circulating and aerating a liquid, and includes a supporting assembly, a driving shaft connected to the supporting assembly, fixed flow guidance devices disposed in the intake zone of the rotor, and a plurality of fluid throughput units. Each fluid throughput...     

Intimate and efficient contacting of plural, physically disparate phases, e.g., a gas and a liquid, is achieved by contacting the phases cocurrently in a column. The gas phase is introduced at a velocity between its phase transition inversion point (T) and multiple critical point (M.sub.c) velocities,...     

An in-line contactor adapted to bring about intimate contact between a disinfectant and a wastewater stream to produce a reaction between the disinfectant and pathogens effecting kills in a manner minimizing unwanted side effects. The wastewater stream is pumped through the successive stages of the contactor,...     

An adjustable spa jet water aerator is provided which is very compact, simple, inexpensive, and durable and which provides for easy separate adjustment of water and air flow therethrough. The aerator is directly securable within a spa wall. It comprises a housing defining water and air conduits disposed...     

A gas-liquid mixing process and apparatus, particularly applied to aeration, especially associated with activated sludge waste-water treatment, wherein complete, efficient mixing of the gas and liquid is achieved initially in a pre-mixing draft tube and secondly in an outer mixing vessel by imparting...     

A water-aeration apparatus has a tubular frame defining a substantially closed chamber and capable of floating and carrying a load when the chamber is filled with air. Flood and bleed valves are provided at respective underwater water intakes and above-water air exhausts for introducing water into the...     

An improved molten metal pump and gas injection apparatus comprising a submersible pump housing 10 enclosing a rotatable impeller 30, an impeller drive 12 supported above the housing and an elongate drive shaft 16 operatively connected to the impeller. Rotation of the drive shaft effects fluid flow between...     

A dam spillway for the passage of water from a forebay to an afterbay comprises a means for compressing the atmospheric air by the passing water and a floatation chamber connected to said means. The floatation chamber incorporates a froth separating cavity having a lower wall thereof in the form of a...     

A hydrotherapy jet unit used singly or in multiples for jetting pressurized water and air under submerged conditions into a water-bearing vessel, and provided with a means to fix the direction of jetted flow at an optimum angle not susceptible to change of alteration by the vessel user; however, each...     

A device for removing solid impurities from air comprising a housing defining an interior mixing chamber. The solid impurity laden air is conducted to the mixing chamber so that the air enters the chamber in a first direction. Simultaneously, water is pumped into the mixing chamber in a direction substantially...     

A sewerage aerator is illustrated having an air feed diffuser with air opening adjustably positioned approximate venturi throat located above the liquid sewerage tank level and having means to introduce the liquid sewerage to the upper venturi chamber and cause it to flow past the air openings.

An aerator (2) comprises a motor (10) having a propeller (18). A slotted cage (30) surrounds propeller (18) and prevents marine life from being drawn in to propeller (18). Liquid will be ejected from propeller (18) in a horizontally traveling stream which stream is oxygenated by a draft tube (48) having...     

A sewage disposal plant comprising a deep-well type sewage treatment tank, which is provided with string-shaped contact members stretched therein, and which minimizes the installation area; a circulator pipe inserted into the sewage treatment tank and having a venturi portion at an intermediate section...     

A fill valve, or aspirator, which is adapted to be connected to a superatmospheric pressure source, such as helium, and which is capable of intermixing at least two fluids in intimate fashion, wherein in one embodiment, actuation of a slide-like member allows introduction of a second fluid, for example,...     

A whirlpool system has the air and water mixing systems adjacent to the pump. The air and water mixing system is connected to inlets and outlets within a tub by flexible pipes, preferably--or optionally by semi-flexible or rigid pipes. The outlets or inlets within the tub are preferably mounted in the...     

A spa system particularly adapted for installation as part of a bathtub within the home. The various jets are fed recirculated water from a pump by individual lines from a manifold to assure equal output regardless of its distance from the pump. The jets are venturi-type jets of the type to aspirate...     

A method for agitating and mixing a gas with a medium in a closed fermentation vessel comprising recirculating said medium through a venturi jet mixer whereby it is mixed with the gas under high shear conditions to form a mixture of gas saturated medium and a dispersion of small gas bubbles and projected...     

A horizontal mixing aerator rides on an upright beam member for submersion in a body of water such as an equalization basin, oxidation ditch, or sludge holding tank. The aerator employs a submersible mixer motor driving a propeller which in one embodiment is mounted on the beam member by a slidable bracket...     

A method and an apparatus for dissolving gas in a body of sewage comprising providing a skirt member having a lower open end extending upwardly from said body of sewage to define a volume of said sewage separate from an adjacent body of clarified liquid in said tank, removing a flow of sewage from said...     

An aeration device for introducing air into a pool of water. The device basically comprises a cylindrically shaped main body portion and a retaining ring for pivotally securing a generally spherically shaped water direction spout within a portion of the main body. The main body has a hollow interior....     

Liquid is circulated from bottom to top in a pressure tank by means of a gas pump including an upstanding pipe located within the tank and up through which gas is pumped at a pressure exceeding tank pressure to carry liquid which enters the pipe at the bottom up to the top of the tank.

A hydrotherapy jet unit used singly or in multiples for jetting pressurized water and air under submerged conditions into a water-bearing vessel, and provided with a means to fix the direction of jetted flow at an optimum angle not susceptible to change or alteration by the vessel user; however, each...     

An aeration device for use in a swimming pool system wherein a pump draws water from a lower portion of a body of water through a filter and returns it to the body of water via a return conduit, and comprises a tubular aeration member positioned adjacent to a conduit to the pump, and extending above...     

A hand-held apparatus for spraying foam comprises (a) a manually-operated dispensing pump capable of receiving a foamable liquid from a suitable container and ejecting it into the atmosphere through an atomizing nozzle, thereby forming a spray from such liquid and projecting it outwardly from the nozzle...     

This invention provides for a system for the year-round aeration of lagoons, ponds, small lakes and the like, providing greatly improved circulation and saturation of effluent with dissolved oxygen, further providing advantages of portability and remote location of inlet, discharge and pump; and utilizing...     

An apparatus for aerating well water in a home water system includes a pressure tank situated above the water in the ground well, means for delivering water from the well to the pressure tank under pressure, an aerator including a pipe tee having a vertical passage therethrough and a horizontal passage...     

There is disclosed an apparatus for effecting a chemical reaction. There is provided an aspirator-mixer or zone to which the reaction mass is pumped to activate the same and into which another reactant is furnished and from which admixed reaction mass and reactant are discharged into a reaction zone...     

A Jet pump for transporting fluid by drawing in the fluid through utilization of a jet stream under high pressure includes a path for transporting the fluid, a plurality of nozzles surrounding the path for supplying high pressure fluid and a plurality of outlets surrounding the nozzles for supplying...     

An aspirating horizontal mixer for aerating and liquid mixing includes a float with tiltable supports extending downwardly into a body of water and an air delivery conduit which are connected to a mixer unit supported below the liquid surface by the supports and tiltable therewith. The mixer unit includes...     

An aerator nozzle and system for aerating a body of liquid which includes a combined air and liquid discharge nozzle unit respectively supplied from an air compressor and a liquid pump wherein the nozzle unit includes a liquid discharge nozzle with an air dispersing nozzle therewithin to insure maximum...     

A mixing device for mixing at least two liquids to produce a homogenous mixture. The device includes an elongated chamber in which a vertically oriented elongated mixing cavity is located. The cavity is sealed at its lower end and it is open at its upper end and in communication with the interior of...     

The present invention relates to an apparatus for flotation, wherein the mixture to be subjected to flotation is mixed with gas, preferably air, inside a flotation cell, in funnel-shaped nozzles in which a conical deflector is arranged in line with the axis of the propulsion jet.

A whirlpool jet housing having a unitary combination orifice and directional flow that can be readily coupled and decoupled from the jet housing. The combination orifice and directional flow includes means for drawing air into the directional flow immediately prior to discharge of the water and thereby...     

A hydropneumatic massage bath includes a bath tub having high side walls and a bottom and at least one pressurized-water line that terminates in a water jet nozzle. An air supply line opens into a chamber surrounding the water jet nozzle. Such chamber has an outlet orifice for a jet of water and pressurized...     

A liquid treatment plant employing a gas - liquid mass transfer process includes a circulating pump for a liquid within a tank, and an injector pump which operates to entrain air in the liquid delivered by the circulating pump prior to return of the liquid/air mixture to the tank by way of a mixing pipe...     

A recirculating bathtub having a single manifold extending along each side of the tub to supply water from a pump and aspirated air to a plurality of tub inlets. Each manifold comprises integrally molded, preferably blow-molded, air and water conduits isolated from one another except at nozzle housings...     

An aeration apparatus for waters consists of a float element and of at least one aerator unit supported thereby, with a motor-driven pump, with a mixing chamber downstream of the latter, with an air pipe connected to the mixing chamber and with at least one ejector leading out of the mixing chamber....     

A hydromassage fitting employs a directional nozzle to inject an aerated jet of water into the interior of a water receptacle, such as a bathtub, spa, therapy tank or swimming pool. The directional nozzle is mounted in the fitting so as permit water to drain around the nozzle and into the water receptacle...     

A hand-held apparatus for spraying foam comprises (a) a manually-operated dispensing pump capable of receiving a foamable liquid from a suitable container and ejecting it into the atmosphere through an atomizing nozzle, thereby forming a spray from such liquid and projecting it outwardly from the nozzle...     

A vortex chamber aerator is provided with a split feed conduit whereby the liquid feed is introduced into the vortex chamber through two opposed passageways to provide more even distribution of the liquid currents within the vortex chamber. This results in reduced wear in the vortex chamber and more...     

A system for sealing a pool or spa fitting includes a wall having a frustoconical hole therethrough, the hole expanding towards the outer side of the wall. A conduit or inlet fitting is disposed in the hole and has an integrally formed enlarged end portion which abuts the inner surface of the wall. The...