A mixing spool is utilized to mix a liquid coagulant into water flowing through a large conduit. The mixing spool is inserted as a segment into the conduit. The mixing spool utilizes a pair of opposite facing nozzles which extend through a wall of the spool into the interior of the spool. The nozzles receive a pressurized liquid flow through a manifold. A chemical injection quill has an open end positioned between the opposite facing nozzles, wherein the chemical injection quill is configured to deliver the liquid coagulant into the water flowing through the conduit.

A fluid path set includes a first fluid line having a proximal end fluidly connectable to a source of a first fluid and a second fluid line having a proximal end fluidly connectable to a source of a second fluid. A flow mixing device is in fluid communication with distal ends of the first and second fluid lines. The flow mixing device includes a housing, a first fluid port provided for receiving the first fluid, and a second fluid port for receiving the second fluid. A mixing chamber is disposed within the housing and is in fluid communication with the first and second fluid ports. A third fluid port in fluid communication with the mixing chamber for discharging a mixed solution of the first and second fluids. A turbulent flow inducing member is disposed within the mixing chamber for promoting turbulent mixing of the first and second fluids.

One fluid is mixed into another to provide a high degree of surface contact between the fluids. In operation, the first fluid flows into an aerodynamic perforated vane mixing apparatus in a laminar condition, and is swirled within the mixing apparatus, the second fluid contacts the first fluid, and then the mixture flows through a scalloped device with a regulated venturi expander. A system for mixing one fluid into another and rotatably shearing and homogenizing material is also disclosed. One or more aerodynamic anomalies are employed to provide complete mixing of multiple fluids one or more of which may be a viscous laminar flow fluid. The shearing may be performed by a scissor rotated by a hydraulic, pneumatic, or electric motor. The sheared material may include, for example, paraffin located within crude oil. If desired, the second fluid may be introduced by a multi-physics fluid delivery device.

An irrigation water treatment device may include a housing and an oxygen nanobubble generator carried by the housing and coupled downstream from an irrigation water supply for an irrigation area and having a first pressure. The irrigation water treatment device may include a solid-state oxygen concentrator carried by the housing and supplying an oxygen stream to the oxygen nanobubble generator at a second pressure higher than the first pressure. The irrigation water treatment device may also include a biological additive device carried by the housing for the irrigation water, and an irrigation water outlet carried by the housing and coupled downstream from the oxygen nanobubble generator.

An exhaust gas aftertreatment system includes an exhaust gas conduit a mixer, and a plurality of flow disrupters. The exhaust gas conduit is centered on a conduit center axis and includes an inner surface. The mixer includes a mixer body and an upstream vane plate. The upstream vane plate has a plurality of upstream vanes. At least one of the upstream vanes is coupled to the mixer body. The flow disrupters are disposed downstream of the mixer and circumferentially around the conduit center axis. Each of the flow disrupters is coupled to the exhaust gas conduit or integrally formed with the exhaust gas conduit. Each of the flow disrupters extends inwardly from the inner surface.

Various implementations include a fluid treatment device. The device includes an outer tube, an inner tube, a plurality of blades, and a media. The outer tube includes an inner surface. The inner tube is coaxially disposed within the outer tube. An outer surface of the inner tube and the inner surface of the outer tube define an annulus that axially extends between the ends of the inner tube. The plurality of blades is disposed within the annulus. The plurality of blades is configured to alter a component of a flow direction of fluid flowing over the blades in a circumferential direction and/or a radial direction. The media is disposed within the inner tube. The inner tube defines a plurality of perforations extending between its outer surface and inner surface. The annulus defines an entire flow path of fluid flowing between the outer tube and the inner tube.

Various implementations include a fluid treatment device. The device includes an outer tube, an inner tube, a plurality of blades, and a media. The outer tube includes an inner surface. The inner tube is coaxially disposed within the outer tube. An outer surface of the inner tube and the inner surface of the outer tube define an annulus that axially extends between the ends of the inner tube. The plurality of blades is disposed within the annulus. The plurality of blades is configured to alter a component of a flow direction of fluid flowing over the blades in a circumferential direction and/or a radial direction. The media is disposed within the inner tube. The inner tube defines a plurality of perforations extending between its outer surface and inner surface. The annulus defines an entire flow path of fluid flowing between the outer tube and the inner tube.

Provided is an ultra-fine bubble generator capable of efficiently generating ultra-fine bubbles in fluid. The generator is a fluid activating device including: a shaft in a cylindrical columnar shape; a tubular body provided with a hollow part to accommodate the shaft with a predetermined interval between an inner peripheral surface of the hollow part and an outer peripheral surface of the shaft; and multiple blades that are provided between the outer peripheral surface of the shaft and an inner peripheral surface of the tubular body while forming a flow path extending spirally from one end of the tubular body toward another end of the tubular body, and that generate a turbulent flow in fluid flowing in the flow path, the tubular body having an inner peripheral surface provided with multiple ribs each composed of a ridge extending in an axial direction of the shaft.

This disclosure relates to a static mixer element comprising an elongated integral scaffold, wherein the scaffold comprises plurality of polytope projections in (i) a radially or axially arranged network or (ii) a spiral ribbon of polytope projections to define a plurality of passages configured for mixing one or more fluidic reactants during flow and reaction thereof through the mixer, wherein the static mixer element comprises at least one elongated support member, wherein at least a portion of the plurality of projections are in connection with the elongated support member.