Abstract: The present disclosure relates to an apparatus for generating nanobubbles of a gas in a liquid, the apparatus including: (a) an outer tube; (b) a porous inner tube coaxially located within the outer tube that is at least partially occluded so as to define one or more liquid flow paths through the inner tube; (c) a pair of end assemblies attached to respective first and second ends of the outer tube, each end assembly having an opening in fluid communication with the one or more liquid flow paths so as to allow a flow of liquid in an axial direction through the apparatus; and, (d) a gas inlet for allowing a flow of gas into a chamber formed between the outer and inner tube, the flow of gas permitted to permeate through the porous inner tube into the one or more liquid flow paths, wherein, as the gas permeates through the porous inner tube, nanobubbles of gas are generated which become entrained in the liquid flow.

Abstract: The present disclosure relates to an apparatus for generating nanobubbles of a gas in a liquid, the apparatus including: (a) an outer tube; (b) a porous inner tube coaxially located within the outer tube that is at least partially occluded so as to define one or more liquid flow paths through the inner tube; (c) a pair of end assemblies attached to respective first and second ends of the outer tube, each end assembly having an opening in fluid communication with the one or more liquid flow paths so as to allow a flow of liquid in an axial direction through the apparatus; and, (d) a gas inlet for allowing a flow of gas into a chamber formed between the outer and inner tube, the flow of gas permitted to permeate through the porous inner tube into the one or more liquid flow paths, wherein, as the gas permeates through the porous inner tube, nanobubbles of gas are generated which become entrained in the liquid flow.