A system for separating solids from a fluid includes a containment vessel having a V-shaped tank in fluid communication with an agitated overflow tank. Baffles within the V-shaped tank provide a series of zones where the fluid is deposited for processing. A shaftless auger at the bottom of the V-shaped tank transfers solids to an area where they are pumped to a first hydrocyclone assembly associated with a first shaker. Overflow from the hydrocyclone assembly and underflow from the first shaker is further processed by a second hydrocyclone assembly associated with a second shaker. Overflow from the second hydrocyclone assembly and underflow from the second shaker are deposited into overflow tank which contains the cleaned fluid.

A dissolved air floatation apparatus including an ultrafine bubble-containing liquid production device and a dissolved air floatation tank. The ultrafine bubble-containing liquid production device includes a gas-liquid mixing unit and a bubble-containing liquid separation device. The bubble-containing liquid separation device swirls a liquid containing ultrafine bubbles and larger bubbles in a storage tank to concentrate the liquid that contains the ultrafine bubbles and the liquid that contains the larger bubbles to a central part of the swirling flow followed by discharge. A pressurized ultrafine bubble-containing liquid is mixed in a raw liquid containing a subject to be cleansed and is poured into the dissolved air floatation tank to cause a suspended substance and a dissolved component in the raw liquid to be adsorbed on an interface of fine bubbles and be floated in the dissolved air floatation tank to be extracted.

A system for determining the level of solids accumulated in a sand separator has a vibratory level sensor and a solid separator control system. The vibratory level sensor includes a vibratory rod and an exciter connected to the vibratory rod. In some embodiments, a vibration sensor is connected to the vibratory rod to monitor changes in the vibration of the rod. In other embodiments, changes in vibration are measured by looking at the rotational speed and power inputs at the exciter.

A pumping system is configured to be deployed in a well that has a vertical portion and a lateral portion. The pumping system includes a pump positioned in the vertical portion, a velocity tube assembly that extends from the vertical portion into the lateral portion and a cyclonic solids separator connected between the pump and the velocity tube assembly. The cyclonic solids separator includes a housing, a discharge manifold extending through the housing, and a plurality of ejection ports that extend through the discharge manifold along arcuate, tangential paths.

A method for removing gas contaminants from flowing solids in a fluid catalytic cracking (FCC) process can include: catalytically cracking a hydrocarbon feedstock in the presence of a catalyst in a riser of a FCC unit to produce a hydrocarbon product; separating the hydrocarbon product from a spent catalyst to produce a hydrocarbon product stream; regenerating the spent catalyst in a regeneration gas comprising oxygen to produce a mixture comprising a regenerated catalyst and a gas contaminant at a first concentration; introducing a stripping gas and the mixture into a regenerated catalyst stripper to produce a regenerated catalyst stream comprising the regenerated catalyst, the stripping gas, and a gas contaminant at a second concentration that is reduced by 50% or greater as compared to the first concentration; and introducing the regenerated catalyst stream to the riser.

A wastewater separation system for separating waste from water includes an inlet, a hydrocyclone, a decanter, and a recirculating means. The hydrocyclone receives a first amount of wastewater from the inlet and centrifugally processes the wastewater in order to remove at least some of the waste from the wastewater in order to expel treated water and a second amount of wastewater. The treated water exits the system. The decanter is coupled to the hydrocyclone for accepting the second amount of wastewater in order to separate the second amount of wastewater into a collection of waste and a third amount of wastewater. The recirculating means recirculates the third amount of wastewater back to the hydrocyclone for reprocessing.

A sand trap for use in oil and gas extraction operations includes a cylindrical vessel for receiving a high-pressure fluid stream with particulates. The vessel has a vertical longitudinal axis and a hollow cylindrical wall having upper and lower ends and an inlet opening generally perpendicular to but askew to the vessel longitudinal axis. Upper and lower caps extend from the upper and lower ends and have openings along the vessel longitudinal axis. An annular diverter has top and bottom ends and a longitudinal axis coaxial with the vessel longitudinal axis. A diverter outer wall permanently extends from an inner face of the cylindrical wall, and a diverter inner wall has an upper portion narrowing to a choke area and a lower portion flaring out from the choke area. A vent pipe extends from the upper cap opening to a location between the upper cap and the diverter top end.

A controller for controlling a slurry flowing from incoming piping and entering hydrocyclones arranged in a battery configuration, featuring a signal processor that receives signaling containing information about respective individual cyclone control signaling x(i) for each individual cyclone being evaluated and controlled, median control signaling {tilde over (x)} of all of the respective individual cyclone control signaling x(i), a scale factor A.sub.i and a number N of the individual cyclones being evaluated and controlled; and determine/provides primary control signaling C containing information to control the slurry flowing from the incoming piping and entering the hydrocyclones arranged in the battery configuration by taking the median control signaling {tilde over (x)} and adding a correction factor, where the correction factor is determined by taking a sum of a respective difference of each of the respective individual cyclone control signaling x(i) and the median control signaling {tilde over (x)}, applying the scaling factor A.sub.i to each respective difference, and normalizing the sum by the number N of the individual cyclones being evaluated and controlled, based upon the signaling received.

The invention provides a device and system for decomposing and oxidizing of gaseous pollutants. A novel reaction portion reduces particle formation in fluids during treatment, thereby improving the defect of particle accumulation in a reaction portion. Also, the system includes the device, wherein a modular design enables the system to have the advantage of easy repair and maintenance.

A method for extracting compounds from botanical material using a condensable gas solvent comprising passing the condensable gas solvent containing the at least one compound extracted from a feedstock through a sonic flow nozzle and introducing the solvent exiting the sonic flow nozzle at a supersonic velocity into a cyclone separator.