Various systems, apparatus, and methods used to remove solids from water are provided. A plate assembly for a plate settler assembly is provided which includes a plate body with a plate body thickness. The plate assembly also includes a first support plate attached to the plate body on a first axis extending between the first and second end of the plate body. The plate assembly may further include a second support plate attached to the plate body on a second axis extending between the first and second end. The plate assembly may also include a stiffener or a central stiffener attached to the plate body on a third axis. The plate assembly may still further include a flow control plate along the first end. The thickness of the support plates, stiffener, and flow control plate are greater than the plate body thickness. A corresponding method of manufacture is provided.

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).

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.

Anaerobic wastewater treatment systems, devices and methods complete three-phase separation of biogas, liquids and solids (e.g., biomass) using overlapped gas hoods or baffles and one or more conically-shaped settlers having a varying cross-sectional area.

Various systems, apparatus, and methods used to remove solids from water are provided. A plate assembly for a plate settler assembly is provided which includes a plate body with a plate body thickness. The plate assembly also includes a first support plate attached to the plate body on a first axis extending between the first and second end of the plate body. The plate assembly may further include a second support plate attached to the plate body on a second axis extending between the first and second end. The plate assembly may also include a stiffener or a central stiffener attached to the plate body on a third axis. The plate assembly may still further include a flow control plate along the first end. The thickness of the support plates, stiffener, and flow control plate are greater than the plate body thickness. A corresponding method of manufacture is provided.

The present disclosure relates to a biofilter for wastewater digestion, in which a high degree of contaminant removal is obtained with a single device. In order for these levels to be achieved, the following are essential: the shape of the biofilter, the supply/discharge ratio of the biofilter, the position and height of each of the components and, finally, the combination of two packed zones, namely: a random zone, and a zone arranged in the form of ringed or corrugated tube bundles.

A lamella for a clarifier formed by a rectangular or square plate, the upper edge and the lower edge of which run parallel to a transverse direction, the two remaining edges running parallel to a longitudinal direction, the plate being provided with longitudinal folds curved in the longitudinal direction and running from the upper edge to the lower thereof; the plate being curved longitudinally, so that the area closer to the lower edge of the plate is less inclined relative to the horizontal than the area closer to the upper edge.

Apparatus for removing suspended impurities from a liquid (e.g., wastewater), methods of use, and systems including such apparatus. In an embodiment, an apparatus may include a vessel defining a chamber for receiving gas induced liquid influent through an inlet, the influent including suspended impurities. A riser tube may be provided within the vessel, in fluid communication with the inlet so that liquid influent introduced into the vessel through the inlet is introduced into the riser tube. One or more coalescing members may be disposed within the riser tube. The coalescing members may be sufficiently small to be easily removable by hand, without requiring a crane. The coalescing members may be freely disposed within the riser tube, rotatable within the flow of the liquid influent, aiding the coalescing members in exhibiting some degree of “self-cleaning”, so as to be less prone to fouling and clogging.

The present disclosure is directed to compositions for use in oxygen capture applications, for example in three-way catalysts (TWC) systems. In some embodiments, the compositions comprise composites of aggregated and/or fused primary particles, the aggregated and/or fused primary particles collectively having the formulae [MnO.sub.x]:.sub.y:[La.sub.zMnO.sub.3].sub.1-y; wherein x is in a range from about 1 to 2.5; y is in a range from about 1 to about 30 wt %, or from about 1 to about 20 wt % or from about 2-10 wt % or from about 2 to about 5 wt %; and z is about 0.7 to about 1.1; and the La.sub.zMnO.sub.3 is a crystalline perovskite phase; the aggregated and/or fused primary particles of the composite having a mean surface area in a range of from about 25 to about 60 m.sup.2/g, preferably from about 27 to about 45 m.sup.2/g. In preferred embodiments, these compositions further comprise low levels of at least one platinum group metal (PGM), preferably Pd.

A method of forming a honeycomb-shaped assembly comprises providing a plurality of profiled strips. Each of the profiled strips comprises two base sides positioned at an obtuse angle relative to each other to form a trough-shaped configuration. An inner projecting flange and an outer projecting flange extend from the base sides. One of the inner projecting flange and outer projecting flange comprises an groove. Two connecting sides each extend along a plane from one of the two base sides and each includes at least one free end including a projection. The plurality of profiled strips are stacked to form an octagonal honeycomb configuration by inserting the projection of a connecting side of one of the plurality of profiled strips into the groove of a base side of another of the plurality of profiled strips. At least a portion of the projection is received by the groove in an interlocking manner.