TECHNOLOGY FOCUS - MECHANICAL ENGINEERING - Preferred Hydrocarbon Removal Mobile Unit: The hydrocarbon removal mobile unit further comprises a dewatering centrifuge to receive the fourth slurry and to apply a centrifugal force for separation of particulate and liquid. The walls of the clay slurry tank extend higher than the desilting tank but allow fluid from the clay slurry tank to flow into the desilting tank when the fluid in the clay slurry tank exceeds a preset limit. The walls of the desilting tank extend higher than the scalper tank and allow fluid in the desilting tank to flow into the scalper tank when fluid in the desilting tank exceeds a preset limit. The fourth slurry flows into a fluid trough for recycling into the separation tank. The rotating material moving device is a rotating auger. The controller comprises a processor powered by a controller power supply, and where the processor is further connected to controller data storage containing controller computer instructions for increasing or decreasing the speed of the rotating material moving device. The hydrocarbon removal mobile unit further comprises a remote control for providing control signals to the controller. The controller further comprises a controller transmitter/receiver and the remote control has a remote control transmitter/receiver for providing wireless remote control to the controller. The remote control has a remote control circuit board connected to a remote control power supply, and where the remote control circuit board communicates with the remote control transmitter/receiver, and where the remote control comprises: (i) a remote control on-switch; (ii) a remote control off-switch; (iii) an increase speed potentiometer; (iv) a decrease speed potentiometer; and (v) a display. The remote control comprises a remote control on-switch, and a remote control off-switch and a speed control member for transmitting signals to the controller that increase or decrease speed of the rotating material moving device. The hydrocarbon removal mobile unit further comprises a material moving motor emergency stop in communication with the rotating material moving device. It further comprises a trough disposed around the rotating material moving device for assisting in flowing the input material to the separation tank. It also comprises a removable sleeve disposed within the trough and for further supporting the injection ports. The first fluid is injected into the input material from a first fluid reservoir and where the first fluid reservoir contains a vapor, a liquid, or a mixture of vapor and liquid. The rotating material moving device is a shaftless auger, which comprises helical flightings. The hydrocarbon removal mobile unit further comprises a water spray bar attached to the separation tank to allow the contaminants to flow to the separator. The separator is a weir and/or a rotating paddle wheel for flowing contaminate to the contaminate recovery sections. The hydrocarbon removal mobile unit further comprises a desilting trough for receiving the third slurry from the desilting hydrocyclone and passing the third slurry to the desilting tank. It also comprises a clay trough for receiving the fourth slurry from the clay extractors and passing the fourth slurry to the clay slurry tank. It further comprises a fourth slurry pump for receiving the fourth slurry from the clay extractors and passing the fourth slurry to the clay slurry tank. From 20 and 60 clay extractors are used. The heating device is a heat exchanger for flowing heated fluid or steam through the heat exchanger to heat the surrounding slurry. The hydrocarbon removal mobile unit further comprises a light for night time use and to maintain continuous use of the hydrocarbon removal device, where the light is connected to a trailer mounted power supply. The extractor comprises a pump connected to a contaminate recovery section second outlet for flowing contaminate from the contaminate recovery section through a filter forming a recycle fluid, and further reintroducing the recycle fluid to the initial separation section, the scalper tank, the desilting tank, and/or the clay slurry tank. The extractor comprises an adsorbent material and/or an absorbent material, disposed within a contaminate recovery section. The hydrocarbon removal mobile unit further comprises a material removal device for receiving first hydrocarbon extracted particulate, the second hydrocarbon extracted particulate, and third hydrocarbon extracted particulate, and for flowing each hydrocarbon extracted particulate to an ancillary location. Specifically, a floating hydrocarbon removal mobile unit comprises a first floating support vessel comprising: (a) a hopper for receiving input material; (b) a rotating material moving device disposed in the hopper for ensuring continuous flow of input material through the hopper; (c) a controller for controlling the speed of the rotating material moving device; (d) injection ports adjacent the rotating material moving device within the hopper for introducing a first fluid to the input material forming a first slurry; (e) a separation tank for receiving the first slurry, agitating the first slurry, and allowing particulate to settle, forming a separated contaminate and a particulate effluent, where the separation tank comprises: (i) an initial separation section for receiving the first slurry; (ii) a separation tank pump in the initial separation section, where the separation tank pump is connected to a fluid supply loop and an injection port for injecting fluid into the first slurry as it flows from the rotating material moving device, and the separation tank further has a separation tank outlet port in fluid communication with a scalper screen; (iii) an agitator port for recirculating the first slurry from the initial separation section through the fluid supply loop; (iv) at least one contaminate recovery section in fluid communication with the initial separation section; (v) an extractor associated with each of the contaminate recovery sections for soaking up hydrocarbons in the contaminate; and (vi) a separator disposed between the initial separation section and each contaminate recovery section; (f) at least one scalper screen for receiving the particulate effluent and separating the particulate effluent into a first hydrocarbon extracted particulate with a diameter greater than 1000 microns and a second slurry; (g) at least one scalper tank where each scalper tank comprises a scalper agitator forming a suspension from the second slurry; (h) at least one desilting hydrocyclone for receiving the suspension and removing a second hydrocarbon extracted particulate with a diameter greater 75 microns, forming a third slurry; (i) a desilting screen for receiving the second hydrocarbon extracted particulate; (j) a desilting tank containing a desilting agitator for receiving the third slurry and forming an agitated third slurry; (k) clay extractors for receiving the agitated third slurry and removing a third hydrocarbon extracted particulate with a diameter greater than 10 microns, forming a fourth slurry; (l) a clay screen for receiving the third hydrocarbon extracted particulate; (m) a clay slurry tank with a clay agitator for receiving the fourth slurry; and (n) a heating device disposed within the clay slurry tank and in fluid communication with at least one of the desilting tank, the scalper tank, and the initial separation section.