A method for using a heated portable vacuum slurry box to efficiently store and transport material including drill cuttings from gas and oil well sites. The slurry box generally includes a vacuum tank, a structure attached to the tank, a vertical tailgate, and a hook for pulling the slurry box onto a vehicle. The features allow for the slurry box to be meet space restriction requirements at a well site while as well as function within the environmental conditions of winter and summer seasons. The method includes a preferred method to unload the slurry box.

A tailgate assembly includes a tailgate hinge that is operable to attach a tailgate to a vacuum tank such that the tailgate is movable between an open position and a closed position, the vacuum tank operable to withstand vacuum pressure when the tailgate is in the closed position. A tailgate warming tube loop is operable to circulate a heated fluid through the tailgate, the tailgate warming tube loop attached to an interior surface of the tailgate and a first rear pipe flange that includes a first rear pipe flange warming channel in communication with the tailgate warming tube loop.

A method and a system for purification of oil, said method comprising the steps of: —providing separation aid and oil to be purified to at least one sedimentation tank; —waiting for allowing a sludge phase to sediment to a bottom part of the sedimentation tank, said sludge phase comprising the separation aid together with impurities from the oil; —removing an oil phase not comprising said sludge phase from the at least one sedimentation tank; and —filtering said oil phase through a depth filter for removing any possible remaining separation aid and impurities.

A fluid treatment system is provided. A clarification reactor or chamber, configured for receiving an influent, is provided wherein separated water and separated solids may be formed from the influent while inside and/or outside the reactor. An influent inlet, positioned essentially at the top of the reactor, configured to allow the influent to enter the reactor is provided. A separated water outlet is provided, positioned essentially at the top of the reactor, that is configured to allow the separated water to exit the reactor. A solids discharge is also provided, positioned essentially at the bottom of the reactor, that is configured to allow the separated solids to exit the reactor. A downward angled baffle, positioned inside the reactor, is configured to deflect the separated solids towards the solids discharge.

A filter is provided including a vessel having an input positioned near the top of the vessel for contaminated fluid; the vessel containing media; a drain screen; a propeller rotatable on a drive shaft extending downwardly from the top of the vessel; a deflector plate below the drain screen to impel media outwardly from the center of the vessel; a plurality of baffles positioned on side walls of the vessel; and a drain to remove fluid from the vessel.

A method of separating material, such as foam, sludge, oil or grease, at a fluid's surface, by applying acoustic pressure shock waves to the material and the fluid's surface such that acoustic pressure shock waves are propagated in liquid medium of the fluid and in gas medium above the fluid surface.

Provided are systems and methods that are related to a fluid processing unit. A method for separating a drilling waste fluid, the method comprising: introducing drilling waste fluid into a thermal extraction chamber; allowing drilling waste fluid to flow longitudinally along two screws disposed within thermal extraction chamber, wherein each screw comprises a shaft, an orifice, and an internal heating element; allowing internal heating element to provide heat to thermal extraction chamber; allowing at least a portion of the drilling waste fluid to evaporate; removing evaporated fluid through a first outlet; removing solids through a second outlet. A thermal extraction chamber for separating drilling waste fluids, wherein thermal extraction chamber comprises: a barrel; a first screw; a second screw, wherein first screw and the second screw comprise a shaft, an orifice, a an internal heating element; an inlet port; a first outlet port; and a second outlet port.

The presently disclosed embodiments utilize an ice separator vessel to trap ice particles in a non-homogeneous ice/fuel mixture flowing in a fuel system. A source of heat, such as heated fuel provided to the ice separator vessel, is used to melt at least a portion of the ice particles so that they do not enter the fuel system downstream of the ice separator vessel.

A system includes a first separator configured to receive waste water, retain a first portion of the waste water, and separate the first portion of the waste water into a first vapor and a first solid material; and a second separator in fluid communication with the first separator, the second separator being configured to receive a second portion of the waste water from the first separator and to separate the second portion of the waste water into a second vapor and a second solid material, the second separator including a first condenser, a heating element, and a first electrocoagulation unit. Related apparatus, systems, techniques and articles are also described.

A scrubber for treating exhaust gas generated by combustion of biomass comprises a plurality of chambers each configured to apply a scrubbing medium to the exhaust gas for removing solid particles from the exhaust gas. A first chamber includes at least one nozzle configured to dispense scrubbing liquid in a sheet oriented transversely to a path of flow of exhaust through the first chamber. A second chamber defines a reservoir for containing a bath of scrubbing liquid and further includes a baffle configured to deflect the exhaust gas into the bath. A third chamber is arranged to support a sheet of solid filter medium spanning across the chamber.