This application relates to a system and method of treating a liquid wherein an oxygen infusion system is used to supersaturate the liquid, wherein oxygen is transferred to the liquid free of oxygen bubbles. The oxygen infusion system can include an eductor without any moving parts, the eductor configured to pump the liquid through a plurality of gas infusion modules, driving liquid flow from a bottom portion of a gas infusion tank towards a top portion of the gas infusion tank thereby causing at least some of the liquid to flow from a bottom end of the plurality of gas infusion modules to a top end of the plurality of gas infusion modules.

This application relates to a system and method of treating a liquid wherein an oxygen infusion system is used to supersaturate the liquid, wherein oxygen is transferred to the liquid free of oxygen bubbles. The oxygen infusion system can include an eductor without any moving parts, the eductor configured to pump the liquid through a plurality of gas infusion modules, driving liquid flow from a bottom portion of a gas infusion tank towards a top portion of the gas infusion tank thereby causing at least some of the liquid to flow from a bottom end of the plurality of gas infusion modules to a top end of the plurality of gas infusion modules.

A fine bubble generator disclosed herein may include a body casing including an inlet and an outlet and a first fine bubble generation portion housed in the body casing and disposed between the inlet and the outlet. The first fine bubble generation portion may include one or more venturi flow paths. Each of the one or more venturi flow paths may include a diameter-decreasing flow path of which flow path diameter decreases from upstream to downstream and a diameter-increasing flow path which is disposed downstream of the diameter-decreasing flow path and of which flow path diameter increases from upstream to downstream. A slit may be defined in at least one venturi flow path of the one or more venturi flow paths, wherein the slit may be recessed outwardly in a radial direction from an inner surface of the venturi flow path. The slit may be disposed continuously from a first end coincident with a downstream end of the diameter-increasing flow path to a second end located upstream of the downstream end.

A fine bubble generator disclosed herein may include a body casing including an inlet and an outlet and a first fine bubble generation portion housed in the body casing and disposed between the inlet and the outlet. The first fine bubble generation portion may include one or more venturi flow paths. Each of the one or more venturi flow paths may include a diameter-decreasing flow path of which flow path diameter decreases from upstream to downstream and a diameter-increasing flow path which is disposed downstream of the diameter-decreasing flow path and of which flow path diameter increases from upstream to downstream. A slit may be defined in at least one venturi flow path of the one or more venturi flow paths, wherein the slit may be recessed outwardly in a radial direction from an inner surface of the venturi flow path. The slit may be disposed continuously from a first end coincident with a downstream end of the diameter-increasing flow path to a second end located upstream of the downstream end.

An air suction protection structure for a microbubble device includes a first throat pipe, a second throat pipe and an air suction pipe. The first throat pipe is provided with a conical opening from which a liquid flow enters the first throat pipe. The liquid flow increases its flow speed after passing through the conical opening. The second throat pipe is communicated with the first throat pipe and located downstream of the first throat pipe, a protection area is arranged on an inner wall of the second throat pipe, and the liquid flow does not contact with an inner wall surface of the second throat pipe within a range of the protection area when passing through the protection area. Meanwhile, the air suction pipe is communicated with the second throat pipe, the air suction pipe is provided with an air suction port connected to the protection area.

An air suction protection structure for a microbubble device includes a first throat pipe, a second throat pipe and an air suction pipe. The first throat pipe is provided with a conical opening from which a liquid flow enters the first throat pipe. The liquid flow increases its flow speed after passing through the conical opening. The second throat pipe is communicated with the first throat pipe and located downstream of the first throat pipe, a protection area is arranged on an inner wall of the second throat pipe, and the liquid flow does not contact with an inner wall surface of the second throat pipe within a range of the protection area when passing through the protection area. Meanwhile, the air suction pipe is communicated with the second throat pipe, the air suction pipe is provided with an air suction port connected to the protection area.

A plasma-activated gas generated by a plasma-activated gas generator is mixed with a liquid in a variety of ways to generate a gas activated liquid. The gas activated liquid may be applied to various items, surfaces, and/or added to fluid volumes to affect chemical specifies and organism therein.

A plasma-activated gas generated by a plasma-activated gas generator is mixed with a liquid in a variety of ways to generate a gas activated liquid. The gas activated liquid may be applied to various items, surfaces, and/or added to fluid volumes to affect chemical specifies and organism therein.