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.

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.

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.

An easy and effective system and method for generating a nanobubble liquid suspension through thermal shock mixing, in which two streams of gas-saturated liquid come into contact at different temperatures, and nanobubble generation is accomplished due to the solubility difference of gases in the streams, are disclosed. The apparatus includes a pair of flow channels to allow two gas-saturated liquid streams to pass through it parallelly. Each flow channel is configured with a plurality of conducting metallic fins throughout its length and parallel to the flow of the gas-saturated liquid flowing through the flow channels. A thermoelectric Peltier-element module thermally heats or cools the metallic fins to generate a heated liquid stream and a cooled liquid stream, that mix together to form nanobubbles. This system is thermally closed, resulting in negligible heat loss into the environment and making the apparatus/system thermally efficient.

An easy and effective system and method for generating a nanobubble liquid suspension through thermal shock mixing, in which two streams of gas-saturated liquid come into contact at different temperatures, and nanobubble generation is accomplished due to the solubility difference of gases in the streams, are disclosed. The apparatus includes a pair of flow channels to allow two gas-saturated liquid streams to pass through it parallelly. Each flow channel is configured with a plurality of conducting metallic fins throughout its length and parallel to the flow of the gas-saturated liquid flowing through the flow channels. A thermoelectric Peltier-element module thermally heats or cools the metallic fins to generate a heated liquid stream and a cooled liquid stream, that mix together to form nanobubbles. This system is thermally closed, resulting in negligible heat loss into the environment and making the apparatus/system thermally efficient.

Provided is an ultra fine bubble production device capable of causing a liquid current to flow in a helical manner without reducing a flow rate of the liquid current while reducing the number of components. The ultra fine bubble production device includes the pipe, the compression device, and the gas bubble production medium. The gas bubble production medium is formed of a carbon-based porous material, the pipe has the side surface having a cylindrical shape and the end surfaces having a circular shape, the liquid current inflow port is provided on the side surface, the cylindrical guide member is arranged so as to be connected to the liquid current inflow port, and the guide member has the guide groove having a helical shape.

A bubble (10) is generated in a liquid, and has different isoelectric point (PI) value depending on a change in a pH value of the liquid, within a pH value range of 3 to 11.

A bubble (10) is generated in a liquid, and has different isoelectric point (PI) value depending on a change in a pH value of the liquid, within a pH value range of 3 to 11.

Provided is an ultra-fine bubble generator capable of efficiently generating ultra-fine bubbles in fluid. The generator is a fluid activating device including: a shaft in a cylindrical columnar shape; a tubular body provided with a hollow part to accommodate the shaft with a predetermined interval between an inner peripheral surface of the hollow part and an outer peripheral surface of the shaft; and multiple blades that are provided between the outer peripheral surface of the shaft and an inner peripheral surface of the tubular body while forming a flow path extending spirally from one end of the tubular body toward another end of the tubular body, and that generate a turbulent flow in fluid flowing in the flow path, the tubular body having an inner peripheral surface provided with multiple ribs each composed of a ridge extending in an axial direction of the shaft.

The present disclosure relates to a system and method for treating wastewater, the method comprising the steps of: providing a vessel for receiving wastewater and a gas, wherein the gas comprises one or more constituent gas components; directing the wastewater and a first gas component of the gas to the vessel; reducing the temperature of the contents of the vessel from a first temperature to a second temperature to facilitate the formation of clathrate hydrates comprising the wastewater and the first gas component; increasing the temperature of the contents of the vessel with respect to the second temperature to facilitate melting of the clathrate hydrates; and removing clean water and/or the first gas component from the vessel.