A machine and process for providing a gas liquid mixture are described. The process can include providing a pressurized fluid stream; and subjecting the fluid stream to a series of alternating flow regions that include a plurality of laminar flow regions and turbulent flow regions. The machine can include a flow path from a pressure vessel to an ejection point, where the flow path includes a plurality of alternating flow characteristic regions.

A machine and process for providing a gas liquid mixture are described. The process can include providing a pressurized fluid stream that includes a mixture of a gas and a liquid; and subjecting the fluid stream to a series of alternating flow regions that include a plurality of laminar flow regions and turbulent flow regions. The machine can include a pressure vessel that includes, above a mid-line, a gas nozzle adapted for the addition of a gas to an interior volume of the pressure vessel and a liquid atomizer adapted for the addition of a liquid to the interior volume of the pressure vessel; below the mid-line, a fluid outlet positioned above a bottom of the pressure vessel and a clean-out port positioned at or adjacent to the bottom of the pressure vessel; and a means for determining a fluid level within the interior volume of the pressure vessel; and a flow path fluidly connected to the fluid outlet, the flow path including a plurality of alternating flow characteristic regions. Further described is the production and storage of the gas liquid mixture.

A multi-stage oxygenator includes a submerged fluid-tight pressure vessel that has first, second, and third sections. A baffle divides the second section into compartments, and a water delivery mechanism delivers water into the second section via the first section. An interface between the first and second sections delivers water to the compartments as water jets or droplets, creating flooded zones. A gas delivery mechanism delivers oxygenated gas into a compartment to create a gas void, through which the water jets or droplets fall, between its flooded zone and the first section. A gas connection through the baffle allows gas from the compartment to create another gas void in a subsequent compartment in series therewith. A gas release device maintains the gas voids by releasing gas from a last compartment. The third section connects the compartments allowing water from their flooded zones to mix to produce treated water that is outputted.

A device (100) for aeration of and separation of carbon dioxide from a fluid is disclosed. The device comprises at least a first and a second screen gear (101,102) said first and second screen gear (101,102) comprising several screen windows (203) in the form of openings. The shape and/or distribution of said screen windows (203) on said first and second screen gear (101,102), when said first and second screen gear (101,102) are connected, is such that at least 20%, preferably at least 25%, more preferably at least 30%, of the screen windows (203) of the first screen gear (101) are asymmetrically distributed in relation to the screen windows (203) of the second screen gear (102), asymmetrically distributed implying that the edges surrounding the screen windows of the first screen gear are not 100% overlapping the edges of the screen windows of the second screen gear when the first and second screen gear are connected and seen from above.