A micro bubble generating device disposed at one end of a liquid supply device including a water inlet unit, a water outlet unit, an air inlet groove, and a first sleeve. The water inlet unit is penetrated by first passages, and one side being penetrated is provided with a first connecting surface; the water outlet unit is penetrated by second passages, and one side being penetrated is provided with a second connecting surface. The second connecting surface faces the first connecting surface, and they partially abut against each other to form the air inlet groove. The air inlet groove comprises a third passage and a first accommodating chamber. The first accommodating chamber has a first spacing, the first spacing is different from a second spacing of the third passage. The first sleeve is disposed at another side of the water outlet unit.

A system for separating solids from a first slurry mixture recovered from a hydrocarbon well. The system includes a V-shaped tank and one or more second mixing tanks for accumulating a slurry of fine particles from an overflow from the V-shaped tank. A shaftless auger moves solids to a conduit fluidly connected to hydrocyclones. The overflow of the hydrocyclones is mixed with the first flurry coming from a rig flow line and is discharged over a target plate and bar screen. Air is released from the mixture through one or more perforated baffles. Solids fall from the bar screen onto a shaker, which dewaters these solids as well as solids from an underflow from the hydrocyclones.

An airlift, water mixing system that passes biocides, algaecides and gas through a ship's ballast water tanks and its pipping to control water PH. Vertically moving diffusion grids provide air sparging in treated ballast water that accommodates variances in ballast water levels without changes in pressure or power used by an air compressor connected to a diffusion grid.

A device for generating flying edible foams or is provided that includes a container (2) suitable for holding liquids that has a lower housing (2a), provided with a lateral perforation (3), suitable for inserting a tube through which the gas is introduced, and an upper housing (2b) that is separated from the lower housing by means of a filter provided with holes (4). The filter (4) can be is a metal plate, with a plurality of holes (4a) distributed on its surface with a diameter such that they prevent the fluid deposited thereon from moving through said holes towards the lower portion of the container but allow the passage of the gas from the lower portion of the container towards the upper portion thereof through the fluid deposited on the filter (4).

A micro bubble generating device disposed at one end of a liquid supply device comprising a water inlet unit, a water outlet unit, an air inlet groove, and a first sleeve. The water inlet unit is penetrated by first passages, and one side being penetrated is provided with a first connecting surface; the water outlet unit is penetrated by second passages, and one side being penetrated is provided with a second connecting surface. The second connecting surface faces the first connecting surface, and they partially abut against each other to form the air inlet groove. The air inlet groove comprises a third passage and a first accommodating chamber. The first accommodating chamber has a first spacing, the first spacing is different from a second spacing of the third passage. The first sleeve is disposed at another side of the water outlet unit.