A system and a method for treating and recycling process water has a cylindrical sedimentation tank and a cylindrical tank for flotation and storage downstream of the sedimentation tank. Water is added to an inlet at the upper part of the sedimentation tank, and treated water is removed from an outlet at the lower part of the flotation tank for recycling. A screw in the sedimentation tank has a major diameter similar the sedimentation tank, which forces water to flow rotationally from the top towards the bottom of the sedimentation tank. A riser between the sedimentation tank and the flotation tank with one end in a lower part of the sedimentation tank, and the other end at an upper part of the flotation tank. A cleaning loop with ozone added is between the tanks, removing water from the flotation tank and returning it to the sedimentation tank.

A gravitational separator for a drainage system includes a collection cavity within which drainwater is collected. The collection cavity includes an exit; and a baffle is strategically arranged within the collection cavity for isolating a boundary region of the cavity interior from the central region thereof and for directing the flow of drainwater which moves through the boundary region along a desired flow path. In addition, an outlet control structure is disposed over the mouth of the exit and includes a sidewall having an opening through which drainwater which enters the mouth of the exit must enter so that as the drainwater enters the sidewall opening and moves into the mouth of the exit opening, the direction of flow of the drainwater is altered through at least 90 degrees.

The present disclosure relates to settling devices for separating particles from a bulk fluid with applications in numerous fields. The particle settling devices of the present disclosure may include a stack of truncoconical cones that may be arranged in opposite orientation, apex to base. Other embodiments include several concentric vertical tubes attached to conical surfaces at the bottom, with inclined settling strips attached to the vertical tubes in annular regions between the tubes. These devices are useful for separating small (millimeter or micron sized) particles from a bulk fluid with applications in numerous fields, such as biological (microbial, mammalian, plant, insect or algal) cell cultures, solid catalyst particle separation from a liquid or gas and waste water treatment.

A filter system and filters and housing components for use in the filter system are provided. The filter system includes at least one filter received within a housing having a cover and a housing body. The filter includes at least one latch tab engaged by the cover to secure the cover. First and second seals seal the system. The latch tab extends axially beyond a catch of the housing body. A filter system is also provided that includes a pre-cleaner through which fluid moves in a first direction different than a second direction as the fluid flows through the filters thereof. Methods of servicing the filter system are also provided.

Settling devices for separating particles from a bulk fluid with applications in numerous fields. The particle settling devices include a first stack of cones with a small opening oriented upwardly or downwardly. Optionally, the settling devices may include a second stack of cones with a small opening oriented downwardly or upwardly. The cones may be concave or convex. These devices are useful for separating small (millimeter or micron sized) particles from a bulk fluid with applications in numerous fields, such as biological (microbial, mammalian, plant, insect or algal) cell cultures, solid catalyst particle separation from a liquid or gas and waste water treatment.

A particle separating system for supplying a cam shaft phase adjuster with cleaned lubricating oil. The phase adjuster includes a stator, a rotor connectable to a cam shaft, and a control valve for hydraulically adjusting the rotational angular position of the rotor relative to the stator. The particle separating system includes an oil separator arranged in the flow of the lubricating oil, upstream of an oil gallery of an engine supplied with the lubricating oil, exhibiting a separation efficiency of at least 50% for particles having a size P1 and a separation efficiency of at least 90% at a size P2>P1; a particle separator arranged downstream of the oil separator and upstream of the phase adjuster or control valve, to clean the lubricating oil for the phase adjuster. The particle separator exhibits a separation efficiency of 50% at a size P3, where P1<P3<100 m.

A separator vessel has inlet, fluid outlet, and sand outlet ports. Each of the fluid and sand outlet ports are spaced below the inlet port. The separator has an enclosure between the inlet and fluid outlet ports. The enclosure redirects the fluid stream and defines an inner cavity above a lower edge of the enclosure, the lower edge defining a liquid flow area. The separator has one or more vanes extending along an outer surface of the enclosure which redirect the fluid stream along a curved flow path as the fluid stream flows toward the lower edge, and a plurality of apertures adjacent to the vanes, the apertures permitting fluid flow into the inner cavity of the enclosure. The fluid outlet port is disposed within the inner cavity above the lower edge of the enclosure and below one or more apertures.

A cyclonic inlet diverter for initiating the separation of a multi-phase inlet fluid flow comprises an enclosed tubular body mounted crosswise within a larger separator vessel. The inlet diverter includes a splitter plate positioned within a center portion of the tubular body and configured to split the inlet flow into a first stream and a second stream, and a swirl plate positioned on each side of the splitter plate with angled surfaces configured to increase the cyclonic motion of the first and second streams within the tubular body. The inlet diverter further includes elongate apertures formed through bottom sidewall portions of the tubular body on each side of the splitter plate, an axial aperture formed through opposing end caps of the tubular body, and at least one radial aperture formed through lateral sidewall portions of the tubular body proximate each opposing end cap.

A well production separation system comprising a cyclonic separator coupled to a spherical separator and configured to separate particulate matter from well production, and to recycle liquids and gases separated in the spherical separator to the overflow region of the cyclonic separator.

A hydrodynamic separator for storm water includes weirs and a first plate within a housing to create a pretreatment area for the storm water. The separator further includes a hollow inner member for inducing rotational flow of water and having an outlet below the first plate which outlet is connected to a lower second plate. Solids further settle from the water in the housing below the lower second plate. A water exit path exists between the two plates.