An oscillating bubble reactor can include a stream inlet configured to receive a contaminated liquid stream, a reactant gas source, a serial venturi reactor (SVR), a micro-nano-bubble aerator (MNBA), and a treated stream outlet. The SVR can be connected downstream to the stream inlet and configured to receive the contaminated liquid stream. The SVR can include a set of serially connected constrictions alternating with pipe segments having a larger diameter than a smaller diameter of the constrictions. The MNBA can be in the stream inlet or the serial venturi reactor. The MNBA can be connected to the reactant gas source and configured to release reactant gas microbubbles, nanobubbles, or a combination thereof into the contaminated liquid stream from the reactant gas source. The treated stream outlet can be connected downstream to the serial venturi reactor.

A wine funnel for facilitating the transfer of wine from a bottle to a decanter includes a frustoconical housing having a top wall, a substantially continuous outer wall, and a lower end. Centrally positioned on the top wall is an elevated ball for dispersing wine into smaller, multidirectional streams. The top wall also includes a plurality of concentric grooves that trap sediment from wine deflected by the ball. The grooves are in fluid communication with an internal spiraled passageway having a plurality of venturi ports for efficiently importing ambient air into wine as it flows through the housing and into a decanter or wine glass.

A transonic two-phase reaction turbine for use with low and high temperature fluid flow mediums includes at least two wheels that are configured to rotate in opposite directions, at least one of the at least two wheels being equipped with one or multiple kinetic energy harvesters.

An apparatus and method is provided for mixing fluids, gases and solids together.

A technique facilitates mixing of fluids for use in well treatment operations. According to an embodiment, a dry powder material, e.g. a friction reducer, may be thoroughly mixed into fluid or fluids associated with a well treatment operation. The powder material is combined with liquid, e.g. water, via a series of Venturi mixers arranged to thoroughly mix the materials. In some applications, the Venturi mixers are mounted on a modular unit which is readily moved to a desired wellsite. Additional modular units may be added to increase the amount of product being mixed according to the demands of a given well treatment operation, e.g. a hydraulic fracturing operation.

The present inventive concept relates to a system for dissolving gas. Specifically, an embodiment of the present inventive concept provides a system for dissolving gas, the system including a water supply unit configured to supply water, a gas supply unit configured to supply gas, a gas solution generation unit connected to the water supply unit and the gas supply unit, and a bubble gas solution generation unit connected to a rear end of the gas solution generation unit, wherein the gas solution generation unit includes a first gas solution generator connected in parallel to the gas supply unit and configured to generate a first gas solution and at least one second gas solution generator connected in parallel to the gas supply unit, connected in series to the first gas solution generator to receive the first gas solution from the first gas solution generator, and configured to generate a second gas solution having a gas concentration higher than a gas concentration of the first gas solution, and the bubble gas solution generation unit is connected to the second gas solution generator to receive the second gas solution from the second gas solution generator and generates a third gas solution containing a gas whose particles are smaller than particles of the gas contained in the second gas solution.

A system for removing carbon dioxide from a flow of gas having carbon dioxide therein is featured. The system includes a first venturi eductor and first reactor which receive the flow of gas having carbon dioxide therein and a flow of a first alkaline solution at a first predetermined pH range. The first venturi eductor and reactor mix and provide reaction time for the flow of gas having carbon dioxide therein and the flow of the first alkaline solution to induce a reaction of the carbon dioxide with the first alkaline solution to form a solution having metal bicarbonate therein. A second venturi eductor and reactor mix the flow of the partially treated gas with the flow of the second alkaline solution and provide reaction time to react a majority of the remaining carbon dioxide with the second alkaline solution to form a solution having metal carbonate therein.

Exemplary embodiments are directed to venturi bypass systems that generally include a fluid inlet and a fluid outlet. The systems can include a venturi path disposed between the fluid inlet and the fluid outlet. The venturi path can include a venturi defining a venturi inlet and a venturi outlet. The systems can include a bypass loop connected to the venturi path at a joint upstream of the venturi outlet. The systems can include a separation tube connected to the venturi outlet. The separation tube can extend fluid flowing through the venturi path downstream of the joint at which the bypass loop connects to the venturi path. Exemplary embodiments are also directed to methods of regulating fluid flow through a venturi bypass system.

Disclosed are methods and devices useful for aerating and or adding additives to carbon-containing aqueous waste.

There is provided an inline saturator system and method for gas exchange with an aqueous-phase liquid. The system includes a pressure vessel, configured to receive a first liquid and a first gas from external sources and to discharge a second liquid and a second gas from the pressure vessel, and a gas infusion device situated within the pressure vessel. The gas infusion device is configured to receive the first liquid and first gas, to facilitate gas exchange therebetween, producing the second liquid and the second gas, and to discharge the second liquid and second gas into the pressure vessel. The system further includes a recirculation system configured to direct a portion of liquid within the pressure vessel back into the saturator device, where injection of the redirected liquid into the gas infusion device forces the first liquid into the gas infusion device for the gas exchange.