An apparatus for treating a multiphase hydrocarbon-containing fluid in an oil and/or gas production facility, the apparatus comprising: (a) an inlet for a multiphase hydrocarbon-containing fluid, wherein the inlet comprises a first pipe network configured to be connectable to a plurality of oil well heads in an oil field; (b) a separation system comprising: (i) a solids separator in fluid communication with the inlet; (ii) a solids outlet connected to the solids separator; (iii) a fluid separator in fluid communication with the solids separator, the fluid separator being configured to separate the remaining multiphase hydrocarbon-containing fluid into an oil phase, a water phase and a gas phase; (iv) an oil outlet connected to the fluid separator; (v) a gas outlet connected to the fluid separator; and (vi) a water outlet connected to the fluid separator; (c) a solids cleaning system connected to the solids outlet, wherein the solids cleaning system is configured to clean deposits of residual oil from the solid particles separated by the solids separator to provide cleaned solid particles and first residual oil, the solids cleaning system having a first output for outputting the cleaned solid particles and a second output configured to output the first residual oil; and (d) a water cleaning and recycling system connected to the water outlet, wherein the water cleaning and recycling system is configured to clean residual oil from the water phase separated by the fluid separator, the water cleaning and recycling system comprising an oil filter for separating the residual oil from the water phase to provide cleaned water and second residual oil, the oil filter having a third output for recycling the cleaned water to at least one well head of the oil field, wherein the third output comprises a second pipe network configured to be connectable to the at least one well head of the oil field, and a fourth output configured to output the second residual oil. Also disclosed is a corresponding method.

An apparatus for treating a multiphase hydrocarbon-containing fluid in an oil and/or gas production facility, the apparatus comprising: (a) an inlet for a multiphase hydrocarbon-containing fluid, wherein the inlet comprises a first pipe network configured to be connectable to a plurality of oil well heads in an oil field; (b) a separation system comprising: (i) a solids separator in fluid communication with the inlet; (ii) a solids outlet connected to the solids separator; (iii) a fluid separator in fluid communication with the solids separator, the fluid separator being configured to separate the remaining multiphase hydrocarbon-containing fluid into an oil phase, a water phase and a gas phase; (iv) an oil outlet connected to the fluid separator; (v) a gas outlet connected to the fluid separator; and (vi) a water outlet connected to the fluid separator; (c) a solids cleaning system connected to the solids outlet, wherein the solids cleaning system is configured to clean deposits of residual oil from the solid particles separated by the solids separator to provide cleaned solid particles and first residual oil, the solids cleaning system having a first output for outputting the cleaned solid particles and a second output configured to output the first residual oil; and (d) a water cleaning and recycling system connected to the water outlet, wherein the water cleaning and recycling system is configured to clean residual oil from the water phase separated by the fluid separator, the water cleaning and recycling system comprising an oil filter for separating the residual oil from the water phase to provide cleaned water and second residual oil, the oil filter having a third output for recycling the cleaned water to at least one well head of the oil field, wherein the third output comprises a second pipe network configured to be connectable to the at least one well head of the oil field, and a fourth output configured to output the second residual oil. Also disclosed is a corresponding method.

A flotation cell for water treatment comprising: a hollow cylindrical body comprising an upper opening, a lower opening and a plurality of conduits distributed on an outer surface of the cylindrical body; an upper lid and a lower lid attached to the cylindrical body to cover the upper opening and the lower opening, respectively, of the cylindrical body, wherein each lid comprises a conduit; a band heater located on the outer surface of the cylindrical body, surrounding the cylindrical body; a support structure comprising a plurality of bars for supporting the cylindrical body and the upper and lower lids; and a control unit attached to the support structure.

A flotation cell for water treatment comprising: a hollow cylindrical body comprising an upper opening, a lower opening and a plurality of conduits distributed on an outer surface of the cylindrical body; an upper lid and a lower lid attached to the cylindrical body to cover the upper opening and the lower opening, respectively, of the cylindrical body, wherein each lid comprises a conduit; a band heater located on the outer surface of the cylindrical body, surrounding the cylindrical body; a support structure comprising a plurality of bars for supporting the cylindrical body and the upper and lower lids; and a control unit attached to the support structure.

A system for treating wastewater comprising a coagulation-flocculation assembly having a raw wastewater inlet and a coagulated-flocculated wastewater outlet; and a slurry separator comprising an intake area configured for receiving wastewater slurry from the coagulated-flocculated wastewater outlet, a liquid outlet, a sludge outlet, and a filtration module configured to facilitate percolating of liquid therethrough and forming of a filter cake thereon. The slurry separator being configured to receive slurry at the intake area, separate the slurry to liquid and sludge by the filtration module, remove the liquid via the liquid outlet, and convey the sludge from the intake area to the sludge outlet. The system further comprises a level maintaining arrangement configured to maintain at least a minimal level of the filter cake.

Provided is a sand setting circulating device for wave-current tank test tailings. A sand collection device is arranged at a front end of a tail gate of a tank body for performing primary collection on a bed-load sand body with a large particle size; a sand-water separating device is arranged at a tail end of the tank body for performing sand-water separation on tail water subjected to energy dissipation so as to perform secondary collection on a suspended load sand body with a small particle size, the sand-water separating device comprising a collection barrel and a sand suction device mounted in the collection barrel; a water outlet is formed in an upper part of the collection barrel, and separated clear water flows into a clear water reservoir through a water return pipe for cyclic utilization; and a computer is arranged for intelligent control.

Provided is a sand setting circulating device for wave-current tank test tailings. A sand collection device is arranged at a front end of a tail gate of a tank body for performing primary collection on a bed-load sand body with a large particle size; a sand-water separating device is arranged at a tail end of the tank body for performing sand-water separation on tail water subjected to energy dissipation so as to perform secondary collection on a suspended load sand body with a small particle size, the sand-water separating device comprising a collection barrel and a sand suction device mounted in the collection barrel; a water outlet is formed in an upper part of the collection barrel, and separated clear water flows into a clear water reservoir through a water return pipe for cyclic utilization; and a computer is arranged for intelligent control.

Fluid treatment systems and components are provided for a removal of solid matter from water or other fluids in which a chemical or chemicals may be introduced into the fluid under pressure to coagulate and/or conglomerate the solid materials and cause them to be dropped out of the treatment system and be removed. The fluid treatment system can include: an equalization chamber receiving a wastewater; a clarification chamber receiving a partially separated water from the equalization chamber; a mixing tube having an inlet end and an outlet end; and a sludge detector.

The invention relates to a tailings settling-dewatering-solidifying device and an experimental method thereof, which falls into the technical field of mine engineering and mine geotechnical engineering, comprising a tailings settling device including a water tank, charging barrels I and II, and a reaction tank made of a transparent material, a dewatering device including an intelligent type controller, a circular base, a gas cylinder, a permeable stone, a piston, a metal rod and a water return barrel, a solidifying device including a charging barrel III and a tailings barrel, a stirring system including a stirrer, a rotary shaft and an electric motor, a dynamic real-time monitoring system including a high-definition electronic camera and a computer, and a three-layer framework. Through integration of tailings settling-dewatering-solidifying, the device can effectively improve tailings treatment efficiency, facilitate data collection and analysis, adjust medicament concentration in real time, meet enterprises' requirements, and reduce enterprise cost.

The invention relates to a tailings settling-dewatering-solidifying device and an experimental method thereof, which falls into the technical field of mine engineering and mine geotechnical engineering, comprising a tailings settling device including a water tank, charging barrels I and II, and a reaction tank made of a transparent material, a dewatering device including an intelligent type controller, a circular base, a gas cylinder, a permeable stone, a piston, a metal rod and a water return barrel, a solidifying device including a charging barrel III and a tailings barrel, a stirring system including a stirrer, a rotary shaft and an electric motor, a dynamic real-time monitoring system including a high-definition electronic camera and a computer, and a three-layer framework. Through integration of tailings settling-dewatering-solidifying, the device can effectively improve tailings treatment efficiency, facilitate data collection and analysis, adjust medicament concentration in real time, meet enterprises' requirements, and reduce enterprise cost.