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.

An aeration device pertaining to the technical field of sewage treatment includes a flow mixing chamber and an air inlet chamber. The flow mixing chamber has a liquid inlet opening, a liquid outlet opening, and an air inlet hole penetrating the chamber wall and located inside the air inlet chamber. The air inlet chamber has an air inlet opening and an interior space whose cross-sectional area is gradually reduced along the liquid flow direction in the flow mixing chamber. The cross-sectional area and number of the air inlet hole can be properly set in order for the mixed fluid produced by the aeration device to have relatively high-density small-diameter air bubbles that contribute to mixing the liquid flow and air flow sufficiently, dissolving oxygen rapidly and sufficiently into the liquid flow, increasing the oxygen dissolution rate of the mixed fluid, and enhancing aeration efficiency.

A submersible aerator includes a hollow cylindrical housing having an open upper end, an open lower end and a hollow interior. An air supply hose extends from an air supply source into the upper end of the housing and terminates at an air outlet, immediately above the lower end of the housing. Attached to the interior surface of the housing outer wall are a series of vertically spaced, oppositely facing baffle plates that provide impact surfaces to cleave rising air bubbles into smaller bubbles. A weep hole is formed on the outer surface of the air supply hose, equidistantly positioned between each adjacent pair of baffle plates. Accordingly, excess air pressure will be relieved via the weep holes as opposed to the lower end of the housing to protect nearby external equipment.

The invention relates to a pack (100) for preparing a food or beverage product from one or more food or beverage ingredients comprising an insert (10) and a container (20) where the ingredient or ingredients are stored, the insert (10) comprising at least a fluid inlet (110) configured for introducing an aqueous fluid under the form of a jet in the inner volume of the pack, the insert (10) further comprising at least an air conduit (130) configured to allow introducing air from the exterior of the pack and into the inner volume of the said pack through at least an air nozzle (132). The at least one fluid inlet (110) communicates with a depression chamber (200) through at least one liquid nozzle (120) in order to create a jet from a pressurized fluid introduced through the fluid inlet (110). The invention further relates to the use of a pack as described for preparing a food or beverage product.

A pouring system comprising a spout retainer and a pour spout that form a liquid-tight seal when attached to, or disposed with respect to, a liquid container, such as a bottle, thereby reducing or eliminating losses from poor seals suffered by use of conventional pour spouts. A spout retainer is configured to forms an essentially liquid-proof seal with an open portion of a container and a pour spout inserted into the container.

One object is to generate, without the need for a motive power source and a high level of machining accuracy, micro-bubbles containing a large amount of fine air bubbles. Another object is to provide a micro-bubble generator that switches between micro-bubble water, which contains micro-bubbles, and foamed water containing a large amount of air and having a tender texture. The micro-bubble generator includes: a water passage that includes a smaller diameter portion and a larger diameter portion disposed on the downstream side of the smaller diameter portion; an air inlet disposed in the larger diameter portion and an elastic body disposed in the air inlet and configured to isolate the water passage from external air. The elastic body is compressible by negative pressure generated in the water passage, causing the external air to be sucked into the water passage through the air inlet and over the compressed elastic body.

A system for dispersing a chemical in a surface water body includes an aerator device, having an injector positioned at a bottom of the surface water body; and a holding tank to store the chemical adjacent to the surface water body; and a metering pump connected to the holding tank, the metering pump having a computing device to program the metering pump; the metering pump is programed to inject an amount of the chemical to the injector at a rate; and the injector disperses the chemical throughout the surface water body.

A system, method, and apparatus for oxygenation of a source of water, to increase the dissolved oxygen content of water. Aspects of the present invention harnesses and directs the power of water flowing through the system to extract oxygen present in air, rather than relying on the injection of gas or using other mechanical means. The water oxygenator is formed as an elongate cylindrical tube having a water inlet at a first end, a water outlet at a second end, and an air inlet proximal to the first end. The elongate cylindrical tube has an outer sidewall defining a mixing chamber within an interior cavity of the water oxygenator. The mixing chamber includes a plurality of baffles that are disposed in a spaced apart relation along a longitudinal length of the interior cavity.

An aerator mixing rod includes a body having a first and second opposite ends and an outer surface extending between the ends. The body defines a longitudinal axis extending through the ends. The aerator mixing rod also includes teeth extending radially outward from the outer surface, with a first row of teeth and a second row of teeth spaced from the first row along the longitudinal axis. A first passageway is formed between adjacent teeth of the first row, and a second passageway is formed between adjacent teeth of the second row. The first passageway is at least partially misaligned with the second passageway in a direction parallel to the longitudinal axis such that the first passageway and the second passageway form a tortuous path for fluid flowing along the outer surface of the body. The aerator mixing rod is formed from an injection-moldable material by an injection molding process.

A beverage dispensing nozzle includes a housing having an upper end opposite a lower end, and an inlet at the upper end that is configured to be placed in communication with a source of a base liquid. The beverage dispensing nozzle further includes a chamber within the housing and in communication with the inlet. An aerator is in communication with the chamber, and the aerator includes a plate having apertures. A flavor inlet valve is in communication with a source of a flavoring and is arranged downstream of the aerator. The flavor inlet valve is configured to dispense the flavoring into the housing. The beverage dispensing nozzle additionally includes a nozzle tip arranged at the lower end of the housing.