Provided are: a microbubble generation device, which utilizes a swirling flow generated by jetting of a pressurized liquid and which has excellent handleability, operability and durability as a result of a simplified configuration and structure; a microbubble generation method capable of generating large amounts of bubbles; and a shower apparatus and an oil-water separation apparatus that comprise said microbubble generation device. This microbubble generation device comprises: a cylindrical or conical pipe with a gas-liquid swirling chamber therein; a gas-liquid jetting port provided on one end of the cylindrical or conical pipe; and a liquid supply pipe and gas supply cylinder, which are provided with respective introduction ports for introducing a liquid and a gas into the gas-liquid swirling chamber. For the gas-liquid jetting port, multiple small cylindrical through holes are provided in the wall of a closed end at one end of the cylindrical or conical pipe, or multiple small concavities that have circular cross-sections and have at least a semicircular circumferential length are provided on the circumferential surface of the inner wall of an open end at one end of the cylindrical or conical pipe.
B05D 3/10 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B08B 3/02 - Cleaning by the force of jets or sprays
B08B 3/08 - Cleaning involving contact with liquid the liquid having chemical or dissolving effect
H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
H01L 21/033 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or comprising inorganic layers
B05B 7/32 - Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the fed liquid or other fluent material being under pressure
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
3.
AQUEOUS SOLUTION CONTAINING OZONE NANOBUBBLES, METHOD FOR PRODUCING SAME AND UTILIZATION OF AQUEOUS SOLUTION CONTAINING OZONE NANOBUBBLES
Provided are: an aqueous solution containing ozone nanobubbles that can not only stably sustain the strong bactericidal power or antibacterial power of ozone but also remarkably suppress the invasion thereof into cells in a biological tissue, etc.; a method for producing the same; and utilization of the aqueous solution containing ozone nanobubbles. In the aqueous solution containing ozone nanobubbles according to the present invention, the average particle size and density of the ozone nanobubbles, said average particle size and density being measured by the ice embedding method with the use of a cryo-transmission electron microscope, are respectively 30 nm or less and 1016 nanobubbles/ml or more, preferably 1-10 nm and 1017 nanobubbles/ml or more. The aqueous solution containing ozone nanobubbles according to the present invention contains ozone nanobubbles which are generated by jetting an aqueous solution containing dissolved ozone from the outside of a tube, said tube being provided with 2 or more small through holes formed in the circumferential direction, through the small through holes under atmospheric pressure or higher and thus bringing the jetted solution into collision in such a manner that water hammer is concentrated at the center of the tube on the same plane parallel to a cross-section in a radial direction of the tube.
Provided are: an aqueous solution capable of being administered to a living body, wherein said aqueous solution has a function to sufficiently supply oxygen to a peripheral cell, causes little damages or injuries of a cell under a low-oxygen or anaerobic stimulation, has a sufficiently high effect to protect a cell, and can exhibit these effects steadily and sustainably; and a method for producing the aqueous solution. The aqueous solution capable of being administered to a living body according to the present invention contains oxygen nano-bubbles, wherein the average particle diameter and the density of the oxygen nano-bubbles are respectively 30 nm or less and 1016 particles or more per 1 ml, preferably 1 to 10 nm and 1017 particles or more per 1 ml, as measured by an ice embedding method using a cryogenic transmission electron microscope. The aqueous solution capable of being administered to a living body according to the present invention contains oxygen nano-bubbles which are produced by ejecting an aqueous solution containing dissolved oxygen from the outside of a cylinder having two or more small through-holes in a circumferential direction through the small through-holes at a pressure equal to or higher than the atmospheric pressure, so that the aqueous solution can get hit in such a manner that water hammering is focused at the center of the cylinder on the same plane that is parallel with a radius-direction cross section of the cylinder.
Provided are a cleaning method and cleaning device for cleaning with micro/nano-bubbles, with which a simple method of spraying a treatment solution containing micro/nano-bubbles onto a substrate to be processed makes it possible to efficiently and reliably peel off residual resist or remove contaminants from the substrate, while reducing an environmental load. This cleaning method is characterized in that, with respect to a substrate to be treated to which a resist film has adhered onto the substrate or a substrate to be treated to which the surface thereof has been contaminated with a metal or metal compounds, the resist film is peeled off or the metal or metal compounds are removed by spraying onto the substrate to be treated a treatment solution containing micro/nano-bubbles of gas and having a temperature maintained at 30°C to 90°, the mean particle size of the micro/nano-bubbles when measured by an ice embedding method using a cryo-transmission electron microscope being 100 nm or lower, preferably 30 nm or lower, and also preferably the density of such bubbles being 108 or more bubbles per 1 ml.
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
B05B 7/32 - Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the fed liquid or other fluent material being under pressure
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05D 3/10 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
B08B 3/02 - Cleaning by the force of jets or sprays
B08B 3/08 - Cleaning involving contact with liquid the liquid having chemical or dissolving effect
H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or
6.
Method, a bubble generating nozzle, and an apparatus for generating micro-nano bubbles
A new method for generating micro-nano bubbles that uses water hammering, a bubble generating nozzle, and an apparatus for generating micro-nano bubbles are provided to construct a system. The system is for generating micro-nano bubbles in a large amount using only pure water, which does not include any nucleating agents, and for performing not only a clean washing and sterilization but also the generation of uncontaminated micro-nano bubbles. The method defined in the present invention uses water hammering power produced by a mutual collision of jets of dissolved-gas-including solution squirted from two or more spouts. The bubble generating nozzle by the present invention has a configuration, including: a hollow cylinder having two or more small through-holes arrayed in the circumferential direction thereof and a micro-nano bubble discharge port provided on the both ends of the hollow cylinder, wherein the small through-holes are arranged so that all of their extension lines passing through respective center of the cross-section of each of the small through-holes which intersect each other in the inside of the hollow of the cylinder. The apparatus for generating bubble by the present invention has such bubble generating nozzle and has a configuration that enables generation of micro-nano bubbles in a large amount.
B01J 19/26 - Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
Provided are a novel water hammer-type micro and nano bubble generating method, generating nozzle, and generating device for building a system that does not perform only clean washing and sterilization by generating a large amount of micro and nano bubbles using only pure water that does not contain nucleating agents but also generates micro and nano bubbles that have no contaminants. This generating method uses the water hammer force generated by spraying a solution containing a dissolved gas from each of two or more emission openings and then the solution sprays mutually colliding. This generating nozzle has a hollow tube, two or more small through-holes around the circumference of the tube, and a micro and nano bubble discharge port on both end portions of the tube, and has a structure for which the small through-holes are disposed so that all extension lines through the center of the cross section of the small through holes intersect inside the tube. This generating device has a parts configuration that can generate a large amount of micro and nano bubbles in conjunction with the generating nozzle.
B08B 3/10 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
C02F 1/50 - Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
C02F 1/76 - Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone
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