Vaults, boxes, systems, and methods of treatment systems to capture pollutants from storm water runoff and prevent the conveyance of these pollutants from entering a receiving water body or landscape area, which is designed to be a part of a local permanent storm water drainage infrastructure. A single treatment box, vault and system combines both drainage conveyance, multi-level treatment techniques, variable hydraulic capabilities, and easy and inexpensive methods for servicing the system. A flow spreader having a triangular shape with straight sides, or concave sides or convex sides can split incoming water to pass into dual screen filtration systems. Additionally, an upwardly angled debris ramp above a downwardly angled screened defector can be located on both sides of the flow spreader to help direct debris and trash into dual screened boxes. The system can also include components selected from a shelf beneath the spreader, at least one baffle, skimmer, deflectors, media filtration and hydroslide water pressure lines with spray heads for cleaning debris on a sloped floor.

Methods and systems for production of lithium hydroxide and lithium carbonate are described. One or more embodiments of the method include producing lithium hydroxide from potassium chloride, lithium chloride, and water. One or more embodiments of the method include producing lithium carbonate from potassium chloride, lithium chloride, water, and a carbon dioxide source. One or more embodiments of the method include producing lithium carbonate from sodium chloride, lithium chloride, water, and a carbon dioxide source.

There is disclosed processes and systems for improving the efficiency of the separation of insoluble contaminants from a fluid in a floatation unit.

Various aspects of the present disclosure are directed to sewage treatment plants and methods of operating sewage treatment plants. In one example embodiment, the sewage treatment plant includes a clarifier having an aeration region with a vent opening to blow in oxygenous gas for mixing water to be clarified and a settling region with an outlet. The sewage treatment plant further includes a wall system that delimits the at least one aeration region from the at least one settling region by the wall system. The wall system has a channel system which has at least one first opening leading to the aeration region in the region of the water level and a sludge removal device of the channel system in the region of a lower wall of the clarifier for transporting solids-rich water from the settling region into the aeration region.

A feedwell comprising a plurality of holes disposed in a bottom thereof, at least some of the holes having a tube disposed thereabout which extends downward or otherwise away from an interior of the feedwell. Optionally, a large center hole can be provided and it can have a tube disposed around it. By providing a plurality of holes spread across a large portion of the bottom of the feedwell, lower velocity flow rates from the feedwell to a sedimentation chamber can be provided, thus reducing induced turbulence in the fluid within the sedimentation chamber, while still providing sufficient separation of the feedwell from the sedimentation chamber so that the contents of the feedwell can be properly and adequately mixed.

The invention relates to separator for separating gas bubbles and/or particles from a liquid. The separator comprises a collection chamber, a fluid inlet, a fluid outlet, and a first fluid flow path extending from the fluid inlet through the collection chamber to the fluid outlet. The separator includes at least one separating element arranged for separating gas bubbles from the liquid arranged in the first fluid flow path. The separator further includes at least one plate arranged in the collection chamber such that the plate defines a passage forming a second fluid flow path at least partially bypassing the separating element.

A system for separating solids from a fluid mixture includes a vessel including a first chamber to receive a solid-laden fluid mixture, and a second chamber to receive liquids separated from the solid-laden fluid mixture. In certain aspects, at least one eductor is disposed in the first chamber to flow the solid-laden fluid mixture out of the first chamber. In certain aspects, an auger is disposed in the first chamber to move at least solids of the solid-laden fluid mixture out of the first chamber.

A cleaning device and methods for cleaning are provided. In one embodiment, the cleaning device includes a head assembly, a body assembly, and a handle assembly. The cleaning device also includes components that enable the cleaning device to operate in dry cleaning modes and wet cleaning modes. Dry cleaning modes can employ a vacuum assembly, including a motor, tubing, and a fluid recovery tank in order to draw in debris and waste into a fluid recovery tank. Wet cleaning modes can further employ a fluid supply tank, a pump, and tubing in order to supply fluid to a brushroll to aid in a cleaning process.

The present disclosure relates to a gas cooling-scrubbing apparatus and an associated method. There is provided a gas cooling-scrubbing apparatus, comprising: a cyclone jet scrubbing unit, a spray scrubbing unit, a filtering spray unit, and a coalescing dehydration unit, wherein the cyclone jet scrubbing unit comprises a cyclone jet scrubbing monopipe (2), a cyclone jet cooling water pipe (15), a cyclone jet pipe plate (14) and a cyclone jet overflow pipe (13); wherein the spray scrubbing unit comprises a spray filtering pipe (3), a spray pipe plate (11), a spray overflow pipe (12), a scrubbing nozzle (9) and a scrubbing nozzle water pipe (10); wherein the filtering spray unit comprises a filtering bed (4), a spray head (7) and a spray water pipe (8); and wherein the coalescing dehydration unit comprises a coalescing bed (5). There is also provided a gas cooling-scrubbing method.

According to one aspect of the present invention, a filtration device includes a tank portion including a first tank to which a liquid containing foreign matters flows, and a pump provided at a central portion of the first tank to discharge the liquid stored in the first tank. The first tank includes a bottom surface, four side surfaces connected to the bottom surface, four corners to which the bottom surface and two of the four side surfaces are connected, and four inclined surfaces covering the four corners. The four inclined surfaces are inclined to be close to the bottom surface from a connecting portion to which the two side surfaces are connected toward the central portion.