A method for manufacturing beverage or other liquid containing bubbles uses a system for manufacturing bubble-containing liquid that includes: a bubble generating unit that generates fine bubbles in a liquid; a bubble collapsing unit that is connected to the bubble generating unit to collapse the fine bubbles contained in the bubble-containing liquid supplied from the bubble generating unit by making the bubble-containing liquid pass through the bubble collapsing unit and irradiating the bubble-containing liquid with ultrasonic wave; and a storage unit that is connected to the bubble collapsing unit to store the bubble-containing liquid supplied from the bubble collapsing unit. The method includes: a bubble generating step of generating the fine bubbles in the liquid by the bubble generating unit; a bubble collapsing step of generating superfine bubbles by forming an ultrasonic field by the bubble collapsing unit to collapse the fine bubbles contained in the liquid; and a storage step of storing the bubble-containing liquid containing the superfine bubbles by the storage unit. Consequently, beverage or other liquid containing the superfine bubbles can be manufactured.

An apparatus for aftertreatment of exhaust gas including a housing having a longitudinal axis that extends between a first end and a second end of the housing; an exhaust inlet being positioned at a portion of the first end of the housing for entering exhaust gas flow into the interior of the housing; a first substrate being positioned within the interior of the housing downstream to the exhaust inlet, wherein the exhaust gas flow being configured to flow through the first substrate in direction of the longitudinal axis; mixer arrangement being positioned within the interior of the housing downstream to the first substrate and including: first flow guide arrangement configured to guide the exhaust gas flow to rotating and advancing gas flow in direction of a crosswise axis perpendicular to the longitudinal axis; a reactant inlet for dispensing reactant to the rotating and advancing gas flow, the reactant configured to mix with the exhaust gas; and second flow guide arrangement configured to guide the rotating and advancing mixed gas flow in direction of the longitudinal axis as a mixed exhaust gas flow; and a second substrate being positioned within the interior of the housing downstream to the mixer arrangement, wherein the mixed exhaust gas flow being configured to flow through the second substrate in direction of the longitudinal axis.

A mixer for a vehicle exhaust gas system, according to an exemplary aspect of the present disclosure includes, among other things, a mixer housing defining an internal cavity and a venturi section including integrally formed mixing vanes and positioned within the internal cavity. The venturi section comprises a first portion and a second portion that are combined to provide a mixing chamber therebetween. A doser mount opening is formed within the mixer housing that is open to the mixing chamber.

An ultrafine bubble generation device including a gas-liquid mixed fluid generator, a rotary mixer, and a bubble shear filter. The rotary mixer is provided with a hollow part including a vertex inside, including an inflow hole, wherein a groove having a spiral shape is provided in an inner wall surface of the hollow part. The bubble shear filter is provided with a hollow part inside, including an inflow hole for introducing the fluid into the hollow part, wherein the hollow part is tubular, and a plurality of circular plates are arranged perpendicularly to a central axis of the hollow part, and an opening of a type 1 of circular plate and a pointed end portion of a type 2 of circular plate adjacent to the type 1 of circular plate are arranged to face each other, and connected with a pipeline.

A mixer and a reactor including the same are provided. According to one aspect of the present invention, the mixer includes a first piping part into which a first fluid flows, an elbow piping part having an inlet connected to the first piping part and an outlet provided at a location rotated by a predetermined angle from the inlet in a flow direction of the first fluid to have a curved flow path, and a second piping part connected to the elbow piping part to have a central axis perpendicular to a central axis of the first piping part so that a second fluid flows in a tangential direction of the elbow piping part when the second fluid flows into the elbow piping part.

Liquid treatment apparatus comprises at least two chambers being first and second chambers through which a fluid can flow. The two chambers are separated by at least one choke nozzle which has an entrance in the first chamber and an exit in the second chamber. The choke nozzle (1) comprises a converging section at its entrance (3), a throat section (4), a backward-facing step (5) immediately after the throat section (4), and an exit section at its exit (6) wherein the exit section (6) diverges from the step (5). Similarly constructed mixing nozzles (1) may be included in the apparatus. The apparatus is especially useful in processes requiring a gas to be entrained in a fluid so that the gas is in the form of very small bubbles that do not tend to coalesce and flash off such as in the dissolution of gold and other precious metals from ore in the removal of arsenic from an ore.

An aeration apparatus including a tank defining a cavity to receive a liquid, at least one aerator positioned within the tank, and a plenum connected to a bottom surface of the tank and in fluid communication with the at least one aerator, in which an air flow is directed from the plenum into the at least one aerator to deliver air to the liquid in the tank to oxidize the fluid.

A method of producing particles by bringing plural dissimilar materials A and B into contact with each other includes feeding a liquid into a reactor from a first end portion of the reactor such that the liquid flows along the inner peripheral surface of the reactor and generating a vortex flow toward a second end portion in the reactor by the feed of the liquid; disposing a flow-assisting blade capable of rotating around the central axis line in the reactor and rotating the flow-assisting blade; and injecting materials to be contacted A and B into the reactor, discharging a contacted liquid from the second end portion of the reactor, and generating the particles in the contacted liquid.

An inlet for an SCR device including a tube having an upstream end for receiving exhaust gases and a downstream end terminating in a porous wall. A plurality of openings are spaced around the circumference of the tube adjacent the porous wall and a plurality of vanes are formed at a connection junction adjacent one edge of the opening to form vanes extending inward at an acute angle relative to a plane between the connecting junction and the longitudinal axis of the tube. Preferably, the vanes are concave on the surface extending inward to promote more effective mixing.

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.