A treatment device for a liquid may include an air compressor configured to generate compressed air and an air dryer coupled downstream from the air compressor. The treatment device may also include an oxygen concentrator coupled downstream from the air dryer and configured to separate nitrogen and oxygen from the compressed dry air and output the nitrogen to the air dryer. The treatment device may also include an oxygen nanobubble generator coupled downstream from the oxygen concentrator and configured to generate oxygen nanobubbles within the liquid.

An oxygen nanobubble system may include a liquid source for liquid to be treated with oxygen nanobubbles. The system may also include a field portable oxygen nanobubble device including a portable housing, an air compressor carried by the portable housing and configured to generate compressed air, an air dryer carried by the portable housing and coupled downstream from the air compressor, an oxygen concentrator carried by the portable housing and coupled downstream from the air dryer, and a liquid pump carried by the portable housing and configured to pump liquid from the liquid source. The field portable oxygen nanobubble device may also include an oxygen nanobubble generator carried by the portable housing and coupled downstream from the liquid pump and to the oxygen concentrator to generate oxygen nanobubbles within the liquid.

A surface water treatment system may include a surface water source and an oxygen nanobubble device. The oxygen nanobubble device may include an air compressor configured to generate compressed air, an air dryer coupled downstream from the air compressor, and an oxygen concentrator coupled downstream from the air dryer. The oxygen nanobubble device may also include a recirculating surface water pump coupled to the surface water source. The oxygen nanobubble device may also include an oxygen nanobubble generator coupled downstream from the recirculating surface water pump and coupled to the oxygen concentrator to generate oxygen nanobubbles within the surface water.

An irrigation water treatment device may include a housing and an oxygen nanobubble generator carried by the housing and coupled downstream from an irrigation water supply for an irrigation area and having a first pressure. The irrigation water treatment device may include a solid-state oxygen concentrator carried by the housing and supplying an oxygen stream to the oxygen nanobubble generator at a second pressure higher than the first pressure. The irrigation water treatment device may also include a biological additive device carried by the housing for the irrigation water, and an irrigation water outlet carried by the housing and coupled downstream from the oxygen nanobubble generator.

A chemical liquid preparation method of preparing a TMAH-containing chemical liquid, including, a correspondence relationship preparing step of preparing a correspondence relationship between a supply flow rate ratio between an oxygen-containing gas and an inert-gas-containing gas and a convergent dissolved oxygen concentration in the TMAH-containing chemical liquid that is converged to when the oxygen-containing gas and the inert-gas-containing gas are supplied into the TMAH-containing chemical liquid; a concentration setting step of setting a target dissolved oxygen concentration in the TMAH-containing chemical liquid; a supply-flow-rate-ratio acquiring step of acquiring the supply flow rate ratio between the oxygen-containing gas and the inert-gas-containing gas corresponding to the target dissolved oxygen concentration in accordance with the correspondence relationship prepared in the correspondence relationship preparing step; and a gas supplying step of supplying the oxygen-containing gas and the inert-gas-containing gas with the supply flow rate ratio acquired in the supply-flow-rate-ratio acquiring step.

A drinking water dispensing device may include a housing and a replaceable, drinking water supply bottle carried by the housing. The drinking water dispensing device may also include a drinking water pump carried by the housing and coupled to the replaceable, drinking water supply bottle for providing a drinking water supply stream having a first pressure, and a water-cooling device carried by the housing for cooling drinking water from the drinking water pump. The drinking water dispensing device may also include an oxygen nanobubble generator carried by the housing and coupled downstream from the water-cooling device. A solid-state oxygen concentrator may be carried by the housing for supplying an oxygen stream to the oxygen nanobubble generator at a second pressure higher than the first pressure. The drinking water dispensing device may also include a drinking water dispensing outlet carried by the housing and coupled downstream from the oxygen nanobubble generator.

An apparatus, includes: a first raw material supply unit 110 including a filter housing 111, a supply fan 112, a flow regulator 113, an electronic valve 114, and an air supply line 115, wherein the supply fan 112 is operated to suck in external air, in the process, the HEPA filter (not shown) mounted inside the filter housing 112 filters fine dust and adjusts the air supply flow rate from the flow regulator 113 to the appropriate flow rate and supplies through the supply line 115 to the ion generator 200; a second raw material supply unit 120 including a pressure regulator 122, a flow regulator 123, an electronic valve 124, and an air supply line 125.

A large-scale harmful algae bloom mitigation system that is environmentally safe, cost-effective, and scalable utilizing a hyperoxic nanobubble treatment and remote brevetoxin screening, without relying on heavy laboratory equipment. The hyperoxic nanobubble treatment and remote brevetoxin screening system is configured for installation within a narrow cross-section of an area of a body of water. The system is a stationary, high oxygen concentration, gas flow system that injects a large amount of oxygen enriched nanobubbles underwater at a small cross-section of a body of water, thereby controlling a large amount of water rapidly and in an environmentally-safe manner.

The present invention provides modular devices and systems for infusing gas into a liquid and methods of manufacture and use thereof. In accordance with an embodiment, a modular device for infusing gas into a liquid is provided. The modular device comprises a plurality of microporous hollow fibers, and a cap covering open ends of the microporous hollow fibers. The cap is configured to receive a gas into an opening and to deliver the gas into the open ends of the microporous hollow fibers. The cap is further configured to removably mount the modular device to a fixture. A system for infusing gas into a liquid may include one or more of the modular gas infusion devices configured to be removably mounted to a fixture such that the microporous hollow fibers are within a hollow cavity. The hollow cavity includes a first opening configured to receive a liquid and a second opening configured to discharge the liquid infused with a gas. Because the system is modular, it is economical to manufacture, scale to different application requirements and to maintain.

A liquid delivery system and a gas-liquid mixing device are provided. The gas-liquid mixing device includes a ROS (reactive oxygen species) generation module, a RNS (reactive nitrogen species) generation module, a venturi, and a control module. The ROS generation module and the RNS generation module can react with air through electrical breakdown effect to respectively generate a plurality of ROS gas particles and a plurality of RNS gas particles. The venturi can generate a negative pressure to draw in the ROS gas particles and the RNS gas particles, so as to be mixed into a liquid. The control module can control one of the ROS generation module and the RNS generation module to perform electrical breakdown effect to obtain a surge duration, and another one of the ROS generation module and the RNS generation module to perform electrical breakdown effect after the surge duration.