There is provided a particle classification system comprising: a classifier including: a vat defining an interior cavity, a feeder conduit upstream of the interior cavity, an overflow conduit in fluid communication between a top of the interior cavity and outside the vat, an underflow conduit downstream of the interior cavity and a controllable underflow valve fluidly connected to a bottom of the interior cavity, the underflow valve controlled to be either in an open configuration in which the interior cavity is in fluid communication with the underflow conduit or in a closed configuration in which the interior cavity is sealed from the underflow conduit; a feed preparation circuit upstream of the feeder conduit; a rejection circuit downstream of the overflow conduit, and a beneficiation circuit downstream of the underflow conduit. There is also provided a method of classifying fluid-borne particles comprising obtaining a feed containing high-density particles.

Separating apparatus, comprising a sedimentation settler and a collection vessel disposed underneath and being in fluid communication with the sedimentation settler, the collection vessel forming a receiving chamber having an outlet at or adjacent to the chamber bottom and having an inlet opening, wherein the collection vessel is arranged such the flow direction of the fluid in the area underneath the sedimentation settler is substantially in line with the direction of the channels of the sedimentation settler.

A fluidized bed separator (1) includes a feed section (4) between an upper separation chamber (19) and a main separation chamber (6). The feed section (4) has one or more feed pipes (11) extending horizontally and transversely with respect to a body wall (10) of the fluidized bed separator (1). The one or more feed pipes (11) are positioned completely and entirely underneath the inclined plates (17). An external oversize protection apparatus (3) which is separate from and external to the body wall (10) may be operatively coupled to the one or more feed pipes (11). One or more lamella cartridges (49) may be provided within channels (18) of the upper separation chamber (19), and one or more breakaway plates (54, 55) may be inserted within channels (18) to prevent sanding and facilitate insertion and extraction of the lamella cartridges (49).

A single stage clarifier and mixing assembly includes a housing, a mixing section within the housing and a clarifier section within the housing. The mixing section includes a mixing chamber having (a) an inlet, adapted for delivering an inlet stream to the mixing chamber, at an upper end, and (b) a mixing section outlet at a lower end. The clarifier section extends concentrically around the mixing section. The single stage clarifier and mixing assembly also includes an agitator adapted for mixing the inlet stream in the mixing chamber.

The present disclosure relates to settler plates for a plate settler. The settler plates generally include a hollow support with a hollow interior to receive clarified liquid from a flow channel between adjacent settler plates. An orifice is formed through the hollow support to direct clarified liquid from the flow channel into the hollow interior. The orifice can be positioned such that clarified liquid can flow upwardly out of the flow channel and downwardly through the orifice into the hollow interior. The hollow support can be integrally formed with the settler plate. For example, the hollow support can be formed by bending a tab extending from an end of the settler plate. The tab can be bent into a hollow support with a cross section that is generally polygonal.

The present invention is directed to a clarifier for water treatment including a module. The module includes a planar inclined sheet; a plurality of vertically-oriented supports; and a tensioner. The at least one planar inclined sheet is tensioned between the plurality of vertically-oriented supports and the tensioner is configured to bring the planar inclined sheet to an even centerline.

The present invention is directed to a clarifier for water treatment including a module. The module includes a planar inclined sheet; a plurality of vertically-oriented supports; and a tensioner. The at least one planar inclined sheet is tensioned between the plurality of vertically-oriented supports and the tensioner is configured to bring the planar inclined sheet to an even centerline.

A system and method for removing suspended solids from waste water includes flowing a volume of waste water through a series of flow chambers arranged between an inlet and an outlet. Each of the flow chambers includes a flow path that is substantially transverse (orthogonal) to a predominant flow path between the inlet and the outlet. The flow chambers are arranged substantially parallel to each other in a switchback (antiparallel) configuration. Stops (e.g., oil or debris stops) are disposed in one or more flow chambers. The stops are configured to substantially impede (or otherwise reduce) introduction of floating material to a flow chamber immediately downstream of each stop. Weirs are disposed in one or more of the flow chambers. The weirs are configured to substantially impede (or otherwise reduce) introduction of settled solids to a flow chamber immediately downstream of each weir.

A liquid treatment unit removes particulate matter and colloids from a liquid, as found in waste water on mines, on construction sites and on heavy industry sites. The liquid treatment unit includes an electrocoagulation unit and a cyclonic separator unit. The liquid to be treated is first subject to electrocoagulation and then fed into the cyclonic separator unit. The cyclonic separator unit guides the electrocoagulated liquid in a circular path downwardly from an outer perimeter to move underneath a skirt and then upwardly and inwardly towards a central outlet located at the top of the cyclonic separator. Floating particles are skimmed from the surface outside of the skirt. In moving to the outlet, the liquid passes through a plurality of nested frusto-conical guide members. An ultrasonic transducer is used to collapse bubbles formed by electrocoagulation, and to clean the electrocoagulation electrodes.

A single stage clarifier mixing assembly includes a housing having a circular sidewall and a center axis, a mixing section in the housing, a clarifier section overlying and axially aligned with the mixing section along the center axis within the housing, an inlet delivering an inlet stream to the mixing section and an agitator. The agitator is adapted for mixing the inlet stream in the mixing chamber.