A method of retrofitting an existing separator pressure vessel (100) with a solids removal system (118) includes installing a support structure (122) in the separator pressure vessel (100), adjusting a size of the support structure (122) within the separator pressure vessel to frictionally engage contact surfaces of the support structure with an inner surface of the separator pressure vessel or a surface of a component installed in the separator pressure vessel, installing a supply header (124) and a suction header (126) on the support structure in the separator pressure vessel, coupling a jetting nozzle (128) or a cyclonic device to the supply header, coupling the supply header to an inlet nozzle (160a) extending from an interior of the separator pressure vessel to an exterior of the separator pressure vessel; and coupling the return header to an outlet nozzle (160b) from an interior of the separator pressure vessel to an exterior of the separator pressure vessel.

An improved clarifier tank having a rake arm assembly with one or more rake arms, a rake arm driveshaft operatively connected to the rake arms and a rake arm drive, and a sump scraper driveshaft, operatively connected to a plurality of sump scrapers and a sump scraper drive.

An apparatus to remove sludge from a reservoir of liquid. A downwardly opening enclosure is positioned atop the floor of a reservoir with the enclosure having inlets for sludge and liquid to flow into the cavity. The cavity includes a channel for the sludge and liquid to flow upward in the channel which increases in size. Gas emitters on the edge portions of the enclosure assist the flow of sludge and liquid into the cavity.

Systems, devices, and methods for providing nutrient removals in an up flow filtration storm water system for treating water to very high clean levels using filtration media. A filtration media can be supported by a screen above a floor in a vault allows for incoming storm water to pass into a void space above the floor into the screen and filtration media and then out an outlet to the vault. The filtration media can include recyclable and/or natural particles. Layers of river rocks can be placed on top of and below the filtration media. The captured debris can drop to the floor. The long lasting filtration media can be cleaned by being backwashed.

A separation tank for crude oil. Fluid enters an inlet section of a center column of the tank via an offset inlet pipe so the fluid enters swirling. Solids that settle in the inlet section are removed by a center column drain and a solids removal system. Free gas rises and exits from the top of the tank. Liquid flows out of the center column via a diffuser that spirals the fluid evenly toward the wall of the tank where oil coalesces and wicks upward. Liquid flows downward around two flow diverting baffles where more oil coalesces and wicks upward via an oil conduit into the oil layer. The water flows under the lower flow diverting baffle and exits the tank through the outlet section. A large circular oil collector weir uniformly removes oil from the oil layer. Interface draw offs located below the oil-water interface remove excess BS&W.

A grit removal unit including a cylindrical grit removal chamber above a grit storage chamber, with an opening to the grit storage chamber through the grit removal chamber bottom. At least one layer plate is an inverted truncated cone around the center axis which is spaced from the grit removal chamber vertical wall to allow fluid flow therebetween. Concentric inverted truncated cone lamella plates are supported in the grit removal chamber above the layered plates, with the lamella plates radially spaced from one another relative to the center axis. An influent opening in the grit removal chamber vertical wall below the layered plates allows fluid and grit into the grit removal chamber, and an effluent opening in the grit removal chamber vertical wall above the lamella plates allows fluid to exit the grit removal chamber.

Embodiments are described for separating/collecting components from a multi-component fluid such as whole blood. Some embodiments provide for controlling the amount of a component, such as platelets, introduced into a separation chamber to ensure that the density of fluid in the separation chamber does not exceed a particular value. This may provide for collecting purer components. Other embodiments may provide for determining a chamber flow rate based on a concentration of a component in the multi-component fluid, which may then be used to determine a centrifuge speed, to collect purer concentrated components.

A method for processing a 3D scene, and corresponding device, system and computer program are disclosed. In an example embodiment, the disclosed method includes: obtaining an image comprising at least a nadir view of a 3D scene, captured by at least one camera; detecting, in the image, at least one shadow cast by at least one object of the 3D scene acting as a support for the at least one camera; and determining a direction of at least one real light source from the at least one detected shadow and at least information representative of the object.

Systems, devices, and methods for providing nutrient removals in an up flow filtration storm water system for treating water to very high clean levels using filtration media. A filtration media can be supported by a screen above a floor in a vault allows for incoming storm water to pass into a void space above the floor into the screen and filtration media and then out an outlet to the vault. The filtration media can include recyclable and/or natural particles. A top screen can be placed on top of the filtration media. Layers of river rocks can be placed on top of and below the filtration media. The captured debris can drop to the floor. The long lasting filtration media can be cleaned by being backwashed.

Apparatus for collecting solids settling at the bottom of a liquid reservoir, the apparatus including: a plurality of suction head assemblies, each suction head assembly including a hollow suction head configured to cause agitation of solids settling in or around the suction head and draw the solids entrained in a liquid flow into one or more outlets of the suction head; a manifold including a body having one or more inlets coupled to the one or more outlets of each suction head to permit the collected solids entrained in the liquid flow to pass into the manifold and one or more discharge ports configured to expel the collected solids entrained in the liquid flow from the manifold; and a pumping arrangement that draws in liquid and entrained solids from the suction head assemblies via the manifold and discharges the liquid and entrained solids via a discharge pipe.