A gas/liquid dissolution device includes: a dissolution case of a cylindrical shape; an introduction port outside a side surface of the dissolution case, where a dissolution water is introduced into the dissolution case and a different kind of gas is mixed through the introducing port; a gas/liquid separation inducer in the dissolution case, the gas/liquid separation inducer inducing the dissolution water and an insoluble gas introduced into the dissolution case to be separated to a gas and a liquid by a centrifugal force; and a discharge port outside an end portion of the dissolution case. The dissolution water and the insoluble gas are discharged from the dissolution case through the discharge port.

[Problem] A preparation of forming bubbles of carbon dioxide gas which is put into a micro-bubble generator is realized, unlike a conventional tablet, as a tablet which can retain an ability to neutralize and remove completely chlorine contained in tap water from start of dissolution of the tablet inside the micro-bubble generator to the completion of dissolution thereof, thereby providing a method for producing micro-bubbles of carbon dioxide gas by using the tablet and a device thereof. [Solution] There is provided a method for producing carbon dioxide gas/micro-bubbles mixed water in which a carbonated bathing agent is a tablet which is 7 mm or more both in tablet diameter and tablet thickness, 15 kg or more in tablet hardness, 10 wt % or less in tablet friability and from 5.5 to 9.0 in pH immediately after dissolution of the tablet in hot water and the carbonated bathing agent contains at least one of the following body rendering agents and contains at least one of the following chlorine neutralizing compounds.

The present disclosure relates to a treatment tool sterilizer with a micro bubble type ozone water supply. The treatment tool sterilizer includes a sterilization tub configured to accommodate an object to be sterilized; a fresh water supply; an ozone water supply including a pressure pump configured to pressurize and transfer fresh water, an ozone generator, a mixer configured to mix fresh water and ozone, and a bubble generator connected to the mixer and configured to pass fresh water and ozone through the bubble generator so as to form micro bubbles; an ultrasonic generator; a drain; a heater mounted on the sterilization tub and configured to apply heat in the sterilization tub; and a controller configured to output a control signal.

A nanobubble manufacturing system comprising: a gas supply unit, supplying gas; a mixing device, mixing the gas with liquid into a first solution; and an ultrasonic oscillator, vibrating the first solution to produce a second solution having nanobubbles.

The invention provides a microdroplet- or bubble-producing device that does not require separate through-holes for different liquid droplet/air bubble-producing flow channels. The droplet-producing flow channels are configured in a three-dimensional manner unlike in a conventional device where they are configured in a two-dimensional plane, and therefore the flow channels can be provided in a more high-density configuration than the prior art. In the microdroplet/bubble-producing device comprising slit(s) and the row of the plurality of microflow channels, the slit(s) is/are a continuous phase supply slit, a dispersion phase supply slit and a discharge slit, the plurality of microflow channels are configured so that the ends of the slit(s) and the two supply ports on both sides or the supply port and discharge port on either side are mutually connected, and at the sites of connection between the microflow channels and the slit(s), the dispersion phase undergoes shear with the continuous phase flow as the driving force, producing droplets or air bubbles of the dispersion phase, which are recovered from the discharge port.

Provided is a gas-dissolved water generating apparatus in which a pressure pump and a multi-stage mixer are sequentially arranged on at least one conduit; a circulation pipe connecting an inlet side of the pressure pump and a outlet side of the pressure pump is positioned on the conduit; a gas supply unit for supplying a predetermined external gas to one side of the circulation pipe, which is connected to the inlet side of the pressure pump, via a gas supply pipe; the gas supply unit and the circulation pipe are connected through a three-way valve, and the three-way valve is configured to have a structure of a venturi pipe having wide inlet and outlet channels and a narrow interior channel along the circulation pipe, so that a gas supplied from the gas supply unit is independently sucked.

Systems and methods for enhanced filtration and separation of fluid from microorganisms, toxins and other particles in a more efficient manner is provided. The system may include a selectively removeable fitting or replaceable filter media and is suitable for use with liquid dispensing devices such as hydrotherapy jets, shower heads, liquid nozzles, and bathtub faucets.

To provide a nanobubble generating nozzle that is compact and capable of generating nanobubbles with high efficiency. The problem is solved by a nanobubble generating nozzle and a nanobubble generator including this nanobubble generating nozzle. The nanobubble generating nozzle includes an introduction part for introducing a mixed fluid of a liquid and a gas into an interior thereof, a jetting part for feeding out the mixed fluid containing nanobubbles of the gas, and a nanobubble generating structure part for generating nanobubbles of the gas, between the introduction part and the jetting part. The nanobubble generating structure part includes a plurality of flow paths having different cross-sectional areas through which the mixed fluid of the liquid and the gas is passed, in an axial direction of the nanobubble generating nozzle.

One or more systems are disclosed for producing microbubbles in a standard tub as well as a pedicure tub for performing pedicures on a user. The one or more systems include a microbubble generating device. The microbubble generating device includes its own housing and is portable or can be attachable to one or more structures such as a pedicure chair. The microbubble generating device includes a pump, an air mixing chamber, a solenoid valve, and electrical timer. After passing through the pump and the air mixing chamber of the microbubble generating device, the outgoing water is infused with microbubbles and redirected from an outlet of the microbubble generating device to the tub or pedicure tub. The system further includes an aerator assembly and one or more filters. Microbubbles are included in the water to provide deep cleaning and other health benefits to the user.

The present microbubble generator is a microbubble generator for generating microbubbles in a liquid, including a straight pipe made of porous ceramics, having one end connected to a compressor and the other end blocked, and the straight pipe having an average pore diameter of 1.5 m or less.