This application relates to a system of treating wastewater wherein an oxygen infusion system is used to supersaturate wastewater before aerobic biological processes, wherein oxygen is transferred to the wastewater free of oxygen bubbles and achieves a reduction in power demand for the aeration process of wastewater.

This application relates to a method of treating wastewater wherein an oxygen infusion system is used to supersaturate wastewater before aerobic biological processes, wherein oxygen is transferred to the wastewater free of oxygen bubbles and achieves a reduction in power demand for the aeration process of wastewater.

This application relates to a method of treating wastewater wherein an oxygen infusion system is used to supersaturate wastewater before aerobic biological processes, wherein oxygen is transferred to the wastewater free of oxygen bubbles and achieves a reduction in power demand for the aeration process of wastewater.

This application relates to a system of treating wastewater wherein an oxygen infusion system is used to supersaturate wastewater before aerobic biological processes, wherein oxygen is transferred to the wastewater free of oxygen bubbles and achieves a reduction in power demand for the aeration process of wastewater.

This application relates to an oxygen infusion module for a system and method of treating wastewater wherein an oxygen infusion system is used to supersaturate wastewater before aerobic biological processes, wherein oxygen is transferred to the wastewater free of oxygen bubbles and achieves a reduction in power demand for the aeration process of wastewater.

This application relates to a system of treating wastewater wherein an oxygen infusion system is used to supersaturate wastewater before aerobic biological processes, wherein oxygen is transferred to the wastewater free of oxygen bubbles and achieves a reduction in power demand for the aeration process of wastewater.

This application relates to a system of treating wastewater wherein an oxygen infusion system is used to supersaturate wastewater before aerobic biological processes, wherein oxygen is transferred to the wastewater free of oxygen bubbles and achieves a reduction in power demand for the aeration process of wastewater.

The present disclosure relates to a fluid path member for generating nano-bubbles, and a fluid path integrator and a nano-bubble generator that use the same. The fluid path member may be configured such that a perimeter length of a cross-section of a fluid path is greater than a cross-sectional area of the fluid path so as to maximize a friction area per volume of fluid. In addition, the fluid path member may be configured such that a single fluid path is continuously formed over several tens of meters or more without a joint. Further, the fluid path member may be configured with a high density. Accordingly, the fluid path member may have improved ability to generate the nano-bubbles. A fluid path member configured to generate nano-bubbles according to some embodiments of the present disclosure includes a body formed as a bendable single tube, wherein the body is configured such that one or more dividing walls dividing a fluid path space inside a fluid path so as to expand a surface area and a friction area of a fluid are continuously integrally formed along a flow direction of the fluid, wherein the body is formed of a soft material of any one of silicone, rubber, and soft resin material so as to be freely bent and wound, and wherein the body is manufactured by extrusion molding such that the one or more dividing walls are continuously formed in a longitudinal direction of the body.

A water treatment system using ozone is disclosed. The system includes a container for holding water, an ozone supply configured to supply ozone, and a water treatment device secured at a lower portion of the container. The water treatment device is configured to disinfect the water using ozone in the container. The water treatment device includes a housing having a plurality of openings and a tortuous porous tube in the housing. The tortuous porous tube is configured to receive the ozone from the ozone supply and distribute the ozone into the water.

A container assembly includes a flexible bag having an interior surface bounding a chamber and an opposing exterior surface. The bag has a bottom end wall that includes a first sparger and a second sparger. The first sparger and the second sparger each have a flexible first sheet overlying a flexible second sheet, the first sheet and the second sheet being secured together so as to form a sparging area bounded between the first sheet and the second sheet, at least a portion of the first sheet overlying the sparging area being gas permeable so that gas can pass from the sparging area, through the first sheet, and into the chamber.