An ultrafine bubble water manufacturing device includes a whirlpool pump, an ejector, a cascade pump, a branch portion on the downstream side of the cascade pump, a return path which communicates from the branch portion between the ejector and the cascade pump, a flow rate adjusting valve and a first ultrafine bubble manufacturing unit interposed in the return path, an emission path which communicates with the branch portion, a second ultrafine bubble manufacturing unit interposed in the emission path and a control device. The control device controls an air amount adjusting valve, the whirlpool pump, the cascade pump and the flow rate adjusting valve based on the measurement values of a concentration meter for the emission path and first and second pressure gauges and on the downstream and upstream sides of the cascade pump.

An apparatus configured to generate generating water comprising nano bubbles of molecular hydrogen on demand. The apparatus is connected to a water supply with a valve and comprises a pump which supplies pressurized water to a venturi gas liquid mixer that also receives a supply of Hydrogen gas. The mixed hydrogen gas/water steam is provided to a nano bubble generating apparatus that uses cavitation to generate nano bubbles of Hydrogen in the water. The Hydrogen nano bubbles have diameters of less than 200 nm and a concentration of up to 1.2 ppm. Further the concentration remains with 85% of the output concentration for at least 12 hours.

The invention provides methods and compositions for carbonation of cement mixes using pressurized carbon dioxide delivered to the mix.

A valve for a plumbing system has a housing with an inlet and an outlet and a valve body movable in the housing between a throttle position with a decreased a flow cross section and reduced flow between the inlet and outlet and an open position with a large flow cross section and free flow between the inlet and outlet. Structure in the valve body applies hydraulic pressure from the inlet or outlet to the valve body to shift same into the throttle position when a pressure differential between the inlet and the outlet exceeds a specified value and into the open position in the absence of a pressure differential between the inlet and the outlet.

A device (1) for dissolving a gas (G) in water (W) is provided, and includes a housing (100) configured to be submerged into the water (W) with the housing (100) having at least one water inlet (101), a gas inlet (102) and at least one water outlet (103) for discharging gas enriched water out of the housing (100), a pump (5) in fluid communication with the at least one water inlet (10) for sucking water (W) from a surrounding of the housing (100), the pump configured to generate a main water stream (S), and means for injecting the gas (G) supplied via the gas inlet (102) into the main water stream (S). The device (1) includes a probe (6) configured to measure a concentration of the gas dissolved in water, and the probe (6) is arranged in the housing (100) of the device (1).

Devices, systems, and methods for siphoning heat exchange or reaction for solids production are disclosed. Passing a contact fluid through a siphoning device, wherein the siphoning device is made of a contact fluid inlet, a carrier fluid inlet, and an outlet, and wherein the contact fluid passes through the contact fluid inlet, inducing a siphon in the carrier fluid inlet. This siphon then siphons a carrier fluid through the carrier fluid inlet and into the contact fluid. The carrier fluid is, in part, made of a first component. The carrier fluid and the contact fluid mix. This mixing produces a product solid, wherein the product solid is produced from the first component by desublimation, condensation, solidification, crystallization, precipitation, reaction with the contact fluid, or a combination thereof of at least a portion of the first component. The product solid passes through the outlet.

A method to improve a performance and efficiency of a liquid-gas eductor includes injecting a small amount of secondary gas into the primary motive liquid prior to the latter's arrival at the eductor. This measure simultaneously reduces the flow rate of motive fluid and maintains a level of secondary inducted flow such that the aggregate secondary flow is higher than without the interventionfor certain conditions. The additional work needed in introducing the injected secondary fluid, by auxiliary means, is a few percentage points of the work done by the motive fluid without the intervention. The quantity of secondary fluid inducted and injected by the eductor adopting the above measures approaches double than that of the secondary flow without the measure. The motive liquid volumetric flow rate is reduced slightly which with the enhanced aggregate secondary flow means that the energy efficiency of the eductor process is substantially increased.

A method to improve a performance and efficiency of a liquid-gas eductor includes injecting a small amount of secondary gas into the primary motive liquid prior to the latter's arrival at the eductor. This measure simultaneously reduces the flow rate of motive fluid and maintains a level of secondary inducted flow such that the aggregate secondary flow is higher than without the interventionfor certain conditions. The additional work needed in introducing the injected secondary fluid, by auxiliary means, is a few percentage points of the work done by the motive fluid without the intervention. The quantity of secondary fluid inducted and injected by the eductor adopting the above measures approaches double than that of the secondary flow without the measure. The motive liquid volumetric flow rate is reduced slightly which with the enhanced aggregate secondary flow means that the energy efficiency of the eductor process is substantially increased.

Initial liquid containing fine bubbles is produced by mixing water and air (step S11). Fine bubbles have diameters of less than 1 m. The density of bubbles in the initial liquid is measured (step S13), and when the measured density is less than a target density (step S14), the initial liquid is heated and reduced in pressure so that the liquid is vaporized (step S15). As a volume of the liquid decreases, the density of fine bubbles increases, and high-density fine bubble-containing liquid is easily obtained. Alternatively, by increasing the density of fine bubbles in the initial liquid with using a filter that does not pass all fine bubbles, high-density fine bubble-containing liquid is easily acquired (step S15). When the density of bubbles in the initial liquid is greater than the target density, the initial liquid is diluted (step S16).

The efficiency of water disinfection can be significantly increased by supplying the ozone in combination with oxygen to an inlet of a cavitation pump. The ozone and the oxygen are turned into ultra-fine bubbles via cavitation action within the pump, facilitating the dissolution of the oxygen and ozone within the water. The water mixed with the oxygen and the ozone is subsequently supplied to a line atomizer, where the dissolution of the ozone within the mixture is completed. The combined use of the cavitation pump and the line atomizer can lead to a substantially complete dissolution of the supplied ozone within water that needs to be disinfected, allowing to easily achieve the concentration of ozone necessary for water disinfection. Due to this efficiency, the system and method described are highly scalable and suitable for water purification at water purification plants of various sizes.