A launder cover system for reducing or eliminating sunlight exposure so as to prevent algae growth in a tank such as a clarifier tank. The launder cover system generally includes a plurality of support members and a plurality of launder covers which are each independently pivotably connected to a tank wall of a tank, such as by using a mount. The support members are each pivotably connected to the tank wall by a pivot connector and the launder covers are each pivotably connected to the tank wall by a hinge connector. Each support member is positioned between a pair of launder covers, and each launder cover is positioned between a pair of support members. The support members function to support the launder covers in a raised or lowered position. A launder support may be connected to the channel wall to support the launder covers in their lowered positions.

A settler for decanting mineral slurries includes a tank having a side wall, a bottom and a top, an outlet for a thickened slurry at the bottom of the tank, a first overflow outlet for withdrawing an overflow stream of a clarified liquid, a slurry inlet means for introducing fresh slurry into the tank, the slurry inlet means having a slurry opening through which fresh slurry joins a body of slurry in the tank, and a stirrer having a vertical axis around which the stirrer rotates or reciprocates, in said settler the slurry opening is displaced laterally relative to said vertical axis of the stirrer and said slurry inlet means comprises mixing means. A separation installation includes the above settler and a method for separating a clarified liquid from a thickened slurry of a mineral slurry.

A method, system, and apparatus directed to an innovative approach for the treatment of stormwater utilizing hydrodynamic separator assembly designed to maximize flow movement for more efficient sediment removal and maximize water flow control.

A fluid treatment system combines cyclonic separators and gravitational separators for use in onshore and offshore oil and gas operations and elsewhere. The characteristics of apertures that interface between a gravitational separation chamber and a cyclonic separator are configurable in accordance with operational requirements. By selecting aperture characteristics, improved control and separation efficiencies can be achieved.

The present invention provides dental amalgam recycling systems, useful for recycling particles from a dental liquid effluent drawn, for example, from a suctioning device.

A clarifier tank insert assembly configured to be inserted into a frac tank. The clarifier tank insert assembly includes a housing that defines a housing interior and includes a bottom opening, at least a first plate pack assembly disposed in the housing interior, and at least a first pipe positioned within the housing interior and above the first plate pack assembly. The first plate pack assembly includes at least first and second parallel plates and the first plate defines a plate angle with the bottom surface of the housing. The first pipe includes a plurality of inflow openings defined therein. A water path extends through the bottom opening, between the first and second parallel plates and into the inflow openings in the pipe.

A deep cone thickener with an underflow concentration rapid auto-adjustment pertains to the technical field of mining tailing disposal. The thickener includes a shell body, a dilution flocculation system, a shearing dewatering system, an underflow circulatory system, and an auto-control system. The shell body includes a thickener pool wall, a cone body, and a collection cylinder. The dilution flocculation system includes a feed pipe, a flocculant charging pipe, and a central feed well. The shearing dewatering system includes a drive motor, a drive shaft, and a rake. The underflow circulatory system includes discharging valves, underflow pumps, circulatory pipes, and a concentration meter. The auto-control system includes a PLC control system. During the underground paste filling, the dilution flocculation system and shearing dewatering system can form a paste slurry. When there is no need for underground backfill, the underflow circulatory system is used to lower the underflow concentration rapidly.

Systems and methods for separating a flowback mixture received from a wellbore. Employing a vessel with internal chambers to receive the mixture and employing eductors and a shaker to manage the separation of the mixture to produce a supply of solids-free liquid ready for reuse.

A reactor for the biological treatment of wastewater, includes a chamber capable of containing a mixture of wastewater and sludge comprising various levels, each level being defined by a sludge concentration and/or density; means for determining a minimum level and a maximum level of sludge extraction in the chamber, comprising: measurement means capable of measuring the sludge concentration and/or density at various levels of a mixture of wastewater and sludge; selection means capable of selecting a maximum sludge concentration and/or density value and a minimum sludge concentration and/or density value; deduction means capable of deducing a minimum extraction level corresponding to the maximum concentration value selected and a maximum extraction level corresponding to the minimum concentration value selected; extraction means capable of extracting sludge at variable levels between the minimum extraction level and the maximum extraction level.

The present invention provides a multiphase separator for separating a multiphase fluid produced by one or more oil wells, the multiphase separator comprising: a separating vessel, comprising an inlet chamber and an oil chamber for collecting oil at least partially separated by a barrier; an inlet for introducing the multiphase fluid into the separating vessel; wherein the oil chamber is positioned on the opposite side of the barrier to the inlet; a gas outlet configured to collect gas separated from the multiphase fluid; an oil outlet configured to collect oil, separated from the multiphase fluid, from the oil chamber; a water outlet configured to collect water separated from the multiphase fluid; and a gas and water mixture injector configured to inject a mixture of pressurized gas and water in a lower portion of the separating vessel.