A system for introducing pressurized gas into a liquid, including: (a) a housing adapted to receive a canister of pressurized gas, the housing including a threaded internal surface to receive a threaded neck of the canister; (b) an applicator in fluid communication with the canister and operationally coupled to the housing; (c) a liquid container adapted to hold therein a carbonated beverage; (d) a receiving port adapted to be reversibly mated with the applicator in an airtight coupling so as to facilitate fluid communication of the pressurized gas into the liquid container.

In agriculture, one of the most important issues is the extent to which the yield of high-quality crops can be increased while saving labor and reducing costs. However, there are many problems in that so-called injuries of crops due to continuous cropping and other causes seriously reduce productivity. The present invention provides an apparatus and a method that provides a method of feeding plants CO.sub.2 on foliage or O.sub.2 on roots by way of injecting a gas into a liquid such that the bubbles formed are of a size that allows them to remain suspended in the liquid for up to two days without dissolving into the liquid thus allowing the system to use the liquid with the suspended bubbles as a foliar or root spray or as a liquid for use in a hydroponic growing system.

The present invention relates to a micro-bubble pump apparatus for a water treatment, and the micro-bubble pump apparatus for a water treatment comprises: a motor for generating rotatory power; and a micro-bubble pump connected to the motor and for mixing a feed liquid which flows into one side thereof and a feed gas which is injected into the other side thereof.

A bubble generation device intermittently generates large bubbles in a liquid phase. The bubble generation device includes a bubble storing container, a pivot, and a pair of edge portion receivers. The bubble storing container stores bubbles generated by a gas supply nozzle in the liquid. The pivot allows the bubble storing container to pivot thereon, thereby releasing the large bubbles from the bubble storing container. The pair of edge portion receivers receives and blocks an edge portion of the bubble storing container to limit pivot of the bubble storing container. An inside of the bubble storing container is partitioned by a partition that is installed in an axial direction of the pivot.

Wastewater treatment systems are disclosed. A wastewater treatment system includes a wastewater conduit disposed in a wastewater treatment vessel, a pump comprising an intake and an outlet connectable to the at least one opening of the wastewater conduit, and an adapter comprising a first end and a second end. The adapter is configured, in a treatment mode, to provide a flow path for wastewater from the wastewater treatment vessel through the adapter and pump to the wastewater conduit. The adapter is further configured to, in a backflush mode, provide a flow path for wastewater through the plurality of nozzles of the wastewater conduit and through the adapter and pump for discharge into the wastewater treatment vessel. Methods of treating wastewater using the system and adapter are disclosed. Methods of retrofitting a wastewater treatment system by providing the adapter are disclosed.

A channel manifold is presented, and which includes a dimensionally stable channel plate having top, bottom and side surfaces and a channel formed in a surface thereof, wherein the channel splits into a plurality of subsidiary channels along the surface of the channel plate and has an entrance port and a plurality of exit ports such that a fluid fed into the entrance port is expelled through the plurality of exit ports.

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.

Ultrafine bubbles with a diameter of less than 1.0 μm are generated in liquid by causing film boiling in liquid by means of a heater.

Embodiments described herein relate to systems and methods for carbonating a liquid at ambient temperature. The system may include a liquid source; a carbon dioxide source; and a contactor for carbonating the liquid. The contactor may include channels and a sparge for carbonating liquid flowing through the channels. The system may produce a liquid having high levels of carbonation at ambient temperature. The sparge may generate microbubbles or nanobubbles to allow for cost-effective carbonation at ambient temperatures. The bubbles may have an average diameter of 100 μm or less. The system may carbonate liquid at a rate of 1 gram to 10 grams carbon dioxide per liter.