According to embodiments described in the specification, a pumping system for use in a tailings pond is provided. The pumping system comprises a pump support and at least one mooring element coupled to the pump support. The at least one mooring element has an extended position for fixing the pump support to a bed of the tailings pond, and a retracted position for permitting movement of the pump support towards a shore of the tailings pond. The at least one mooring element is configured for transitioning from the extended position to the retracted position when a distance from the shore to the pump support exceeds a threshold as a result of a change to tailings pond geometry, and for returning to the extended position following movement of the pump support to reduce the distance below the threshold.

The present disclosure is directed to systems and methods for removing waste materials from the surface of liquid in a liquid treatment system. In one example a surface wasting system comprises a chamber including a sump, an outer conduit coupled by a first seal to an upper wall of the chamber, an inner conduit axially disposed within the outer conduit, the inner conduit in contact with a surface of a liquid in a treatment vessel of the liquid treatment system, an expandable waterproof bellows having a lower end coupled to the outer conduit above the first seal and an upper end coupled to the inner conduit, the waterproof bellows forming a second seal between the outer conduit and the inner conduit, and a float coupled to the inner conduit and configured to vertically displace the inner conduit responsive to a change in a level of liquid in the sump.

Dilution check valves, pumps, systems, and methods of use, useful for dilution of incoming feed into a feedwell or feed system that can be easily installed and removed on solid/liquid separation units. The feed dilution apparatuses or systems can be installed in a single location or in multiple locations around a feedwell, transferring supernatant drawn from single or multiple locations within a solid/liquid separation tank. Optionally, an in-line turbine style pump and/or downward draft configuration can be used to provide efficient pumping and accurate adjustment of volume by increasing or decreasing rotation speed. The feed dilution pumps can optionally be installed using a quick fit system that allows removal and replacement during operation without the need for mobile cranes or heavy lifting equipment.

An effluent weir system includes: one or more effluent wefts mountable within a separation tank; the effluent weir having an enclosed top portion, a bottom inlet and a discharge in fluid communication with a clear well riser; a clear well in fluid communication with the separation tank through the effluent weirs; a clear well riser with a bottom portion in fluid communication with the effluent weir discharge and a riser discharge, the riser discharge height being adjustable and including one or more sealing members. An effluent weir system may include multiple effluent weirs in fluid communication with multiple clear well risers. The effluent weir may include a peaked top portion.

A separation system for the removal of suspended solids from raw fluid. Raw fluid is placed in a non-pressurized settling tank and allowed to partially settle before injection into a pressurized clarification vessel. Following a dwell period clarified fluid is discharged at the top of the clarification vessel and settled waste is removed at the bottom thereof. Constant vessel pressure is maintained during injection of raw fluid or the discharge of clarified fluid or settled waste. The system is simpler to manufacture and more efficacious in its use than prior art methods.

To provide a supernatant water discharge device capable of preventing overflow from a settling pond due to severe rain. The supernatant water discharge device comprises: a submersible pump 10 provided in a first settling pond D; a floating member 30 that makes the submersible pump 10 float on a water surface; a distance sensor 41 that measures a distance to a sediment S; an anemometer 42; and a controller 50 that stops the submersible pump 10 if a measured value from the distance sensor 41 or the anemometer 42 reaches a threshold. By predicting severe rain, discharge of supernatant water W to a second settling pond P can be stopped. This can prevent overflow from the second settling pond P due to severe rain. If the sediment S gets close to the submersible pump 10 as a result of a drop in water level or increase in a deposition height, the submersible pump 10 can be stopped. This can prevent failure of the submersible pump 10 due to suction of a solid.

According to embodiments described in the specification, a pumping system for use in a tailings pond is provided. The pumping system comprises a pump support and at least one mooring element coupled to the pump support. The at least one mooring element has an extended position for fixing the pump support to a bed of the tailings pond, and a retracted position for permitting movement of the pump support towards a shore of the tailings pond. The at least one mooring element is configured for transitioning from the extended position to the retracted position when a distance from the shore to the pump support exceeds a threshold as a result of a change to tailings pond geometry, and for returning to the extended position following movement of the pump support to reduce the distance below the threshold.

A mobile flocculation and water treatment system includes at least one tank, preferably a series of adjoining tanks separated by weirs, and an adjacent pump house mounted on a mobile platform. At least one pump is mounted in the pump house. Fluid conduits run from the pumps to the tank. An overflow is mounted between the downstream tank and the pump house whereby fluid overflow from the tanks is directed into the pump house. The pump house provides a substantially water-tight reservoir zone to provide secondary containment. Water to be treated enters the upstream end of the tanks and is discharged from the downstream end.

An ecological biowater purification system is provided, which includes a plurality water purification tanks connected to one another; each water purification tank includes a water inlet, a water outlet, a water purification device, a suction device, a first and a second backflow device. Particularly, the water purification device orderly includes a sedimentation pool, an anaerobic pool, an anoxic pool, a level-1 and a level-2 biological filter pool, which communicate with one another via baffle boards and communication holes; each suction device includes a plurality of suction nozzles and a suction pipe for discharging precipitates out of the water purification tank; the first backflow device is used to make some water in the level-2 biological filter pool flow back to the sedimentation pool, and the second backflow device is used to make some water in the level-1 and level-2 biological filter pool flow back to the anaerobic pool.

A grease separator incorporating a vessel having an upper opening and an interior space, the vessel further having a floor, a front wall, a rear wall, a left wall, and a right wall; a water ejection port positioned at the front wall; left and right flow ports respectively positioned at the left and right walls; a separator baffle and a damping baffle; slide channels adapted for alternatively positioning the separator baffle at the left and right ends of the vessel's interior, the slide channels being further adapted for positioning the damping baffle oppositely from the separator baffle; and a submersible pump having a water intake port positioned at the lower end of the vessel's interior, the submersible pump having an output communicating with the water ejection port.