A fine-bubble mixed liquid producing apparatus 1 includes a reservoir 4 and a bubble feeding means 6 for feeding bubbles to a liquid L stored in the reservoir 4, wherein the bubble feeding means 6 includes a rotary cylinder 20 having an emitting part 22 on the outer circumferential surface, the emitting part 22 for being rotationally driven by a drive means 10, a circulating means 40 for drawing out the liquid L stored in the reservoir 4 and feeding the liquid L from the emitting part 22 to the reservoir 4, and a gas-liquid mixing part 50 for mixing bubbles with the liquid L circulated by the circulating means 40. This apparatus enables a fine-bubble mixed liquid to be efficiently produced.

A gas solution production apparatus 1 includes a gas dissolving unit 5 that dissolves the gas of the second raw material into the liquid of the first raw material to generate a gas solution with a predetermined concentration, and a gas-liquid separation unit 8 that subjects the gas solution to gas-liquid separation into a supply liquid and an exhaust gas. The unit 5 includes a first nozzle 9 that atomizes the liquid of the first raw material, a mist mixing section 11 that mixes the liquid of the first raw material atomized by the nozzle 9 and the gas of the second raw material to generate a gas solution with a higher concentration than a predetermined concentration, and a liquid mixing section 12 that mixes the gas solution with the high concentration and the liquid of the first raw material to generate the gas solution with the predetermined concentration.

A system and method of injecting a gas enriched and/or emulsified first liquid into a second liquid is disclosed. The injection can cause generation of a high density of bubbles having a mean diameter of a selected size. The mean diameter of the bubbles can be selected and varied based on the characteristics of the injection system.

A system for stabilizing gas-infused liquid, includes a tubular flow path configured to receive and pass therethrough the gas-infused liquid under a pressure of at least 20 psi, wherein a surface of the flow path configured to engage the gas-infused liquid flowing through the flow path is formed of material having a surface roughness (Ra) in a range of 0.1 m-10.0 m, and the flow path has a length which is at least 100 times a mean inner diameter thereof.

A system for stabilizing gas-infused liquid, includes a tubular flow path configured to receive and pass therethrough the gas-infused liquid under a pressure of at least 20 psi, wherein a surface of the flow path configured to engage the gas-infused liquid flowing through the flow path is formed of material having a surface roughness (Ra) in a range of 0.1 m-10.0 m, and the flow path has a length which is at least 100 times a mean inner diameter thereof.

A method and an installation for treating a main wastewater stream flowing in a closed conduit with a flow direction. The method includes the steps of: introducing a liquid into at least one pre-treatment stream; generating a gas stream containing ozone gas; introducing the gas stream into the at least one pre-treatment stream, each with a gas injector, resulting in at least one mixed-phase stream comprising ozone laden gas and liquid; passing the at least one mixed-phase stream through at least one static mixer, resulting in a predefined gas bubble size; and injecting the at least one mixed-phase stream in the main wastewater stream perpendicular to the flow direction.

The invention provides compositions and methods for delivering carbon monoxide (CO) to subjects suffering from inflammatory, cardiovascular, Sickle Cell, and other disease. The compositions are liquids, including Newtonian and non-Newtonian liquids, such as pastes, gels, foams, emulsions, and other non-gaseous compositions, in which CO is dissolved at an amount that, when administered to a patient, provides a therapeutically or prophylactically effective amount of CO to the patient. The compositions can be provided in many forms, including in bottles or cans.

A method of producing washing hydrogen water in an embodiment, includes: a step of storing ammonia water in a first tank; a step of transferring the ammonia water from the first tank to a second tank; a step of diluting the transferred ammonia water with ultrapure water in the second tank; a step of mixing the diluted ammonia water into hydrogen water; and a washing step of washing an inside of the first tank by ultrapure water to remove fine particles derived from ammonia generated in the first tank.

The present invention provides a system for enriching a flowing liquid with a dissolved gas inside a conduit. The system comprises two or more capillaries, each capillary delivering a stream of a gas-enriched liquid to the flowing liquid. The first ends of the capillaries are positioned to form an intersecting angle with respect to the effluent streams such that these streams of gas-enriched liquid collide with each other upon exit from the first ends of the capillaries, effecting localized convective mixing within the larger liquid conduit before these gas-enriched streams are able to come into close contact with the boundary surfaces of the conduit, whereby the gas-enriched liquid mixes with the flowing liquid to form a gas-enriched flowing liquid. In the preferred embodiment, no observable bubbles are formed in the gas-enriched flowing liquid. Methods of making and using such system are also provided.

A system and method of injecting a gas enriched and/or emulsified first liquid into a second liquid is disclosed. The injection can cause generation of a high density of bubbles having a mean diameter of a selected size. The mean diameter of the bubbles can be selected and varied based on the characteristics of the injection system.