In a method for infusing a gas from a gas source into a liquid beverage, liquid beverage is driven from a beverage container into a liquid inlet port of a venturi mixing device. Nitrogen is infused into the liquid beverage by driving nitrogen through a gas inlet port of the venturi mixing device, thereby delivering nitrogen-infused liquid beverage to a discharge port of the venturi mixing device. The nitrogen-infused liquid beverage is poured from the discharge port through a faucet.

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.

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.

The invention relates to catalytically producing formic acid and regenerating the catalyst used in the process. A vanadyl ion, vandate ion, or polyoxometallate ion, which is used as the catalyst, of the general formula [PMo.sub.xV.sub.yO.sub.40].sup.n is brought into contact with an alpha hydroxyl aldehyde, an alpha hydroxy carboxylic acid, a carbohydrate, a glycoside, or a polymer, which contains a carbon chain and which comprises at least two OH groups bonded as substituents to the carbon chain as a substituent in a repeating manner and/or an O, N, or S atom contained in the carbon chain in a repeating manner, in a liquid solution (12) in a vessel (10) at a temperature above 70 C. and below 160 C., wherein 6x11, 1y6, 3<n<10, and x+y=12, where n, x, and y is each a whole number.

Provided is a supply-liquid producing apparatus capable of producing a supply liquid by an amount needed at a use point. A supply-liquid producing apparatus includes a mixer that mixes water and ozone gas to produce ozone water; a booster pump that increases the pressure of the water supplied to the mixer; a gas-liquid separation tank that separates the ozone water produced by the mixer into ozone water to be supplied to a use point and exhaust gas to be discharged from an exhaust port; a flowmeter that measures the flow rate of the ozone water supplied from the gas-liquid separation tank to the use point; a flow control unit that adjusts the (flow rate of the water supplied to the mixer by controlling the booster pump in response to the flow rate of the ozone water measured by the flowmeter; and an exhaust pressure control unit that controls the exhaust pressure to keep constant the water level in the gas-liquid separation tank.

The problem to be addressed by the present invention is to provide a cleaning apparatus capable of obtaining a cleaning liquid having a high degree of cleanliness. A cleaning apparatus 10 includes a dissolution tank 20 for dissolving a gas in a liquid, a transfer pump 30 for sending the liquid together with the gas into the dissolution tank 20, and a feed nozzle 40 for feeding the liquid stored in the dissolution tank 20 to a workpiece W. The transfer pump 30 is a positive displacement pump. Portions of the dissolution tank 20, the transfer pump 30, and the feed nozzle 40 that come into contact with the liquid are made of a fluororesin.

Systems and methods for dissolving ozone gas in a liquid. An embodiment can comprise a tank having an upper region, a lower region, and a discharge outlet, all disposed in a specified geometry. A pump can be coupled with a liquid inlet in order to receive a liquid therefrom and to deliver the liquid via a pipe to the upper region of the tank. The pump can be coupled with the lower region of the tank in order to receive the liquid from the tank and to recirculate the liquid to the upper region of the tank. The apparatus can include an ozone inlet to receive ozone into the tank. The ozone inlet can comprise a venturi inlet disposed on the pipe downstream of the pump. The liquid can be released from the tank and depressurized, thereby providing for the ozone to emerge from the liquid as gas bubbles. The released liquid can be selected for a two-stage gas and aqueous cleaning process.

A system for creating an oxidation reduction potential (ORP) in water and for reducing the surface tension of the water for the pathogenic cleansing and/or degreasing of hard surfaces and equipment. The hard surfaces to be cleansed and/or degreased may be plastic, glass, ceramic, porcelain and stainless steel. The equipment to be cleansed and/or degreased may be food service equipment such as ovens, ranges, fryers, grills, steam cookers, refrigerators, coolers, holding cabinets, cold food tables, work tables, beverage dispensing equipment, beer dispensers, shelving, food displays, dish washing equipment and grease traps.

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.

An aerating and liquid agitating device to efficiently introduce high velocity, agitating air into a water line for mixing and aerating water tanks. An illustrative embodiment of the aerating and liquid agitating device includes a device fitting having an ingress end configured to be coupled to a liquid pump, an egress end and an opening between the ingress end and the egress end. The device fitting may be configured to accommodate flow of a liquid from the ingress end to the egress end. An air inlet fitting may extend through the opening in the device fitting and terminate inside the device fitting. The air inlet fitting may be defined by a terminal angled profile sloped between from about 35 to about 90. An air inlet hose may be coupled to the air inlet fitting. The air inlet hose may be configured to introduce air through the air inlet fitting into the device fitting.