Abstract: An apparatus having a regulator fluidly connected to a nozzle by a fuel supply conduit can be fluidly connected to a source of liquefied fuel, such as liquefied petroleum gas. The apparatus can be used to initiate self-sustaining combustion of combustible materials in poor condition. The apparatus can be used to dispense a gaseous jet stream of the fuel through an air space and towards combustible materials for aspirating a portion of the air in the air space. The gaseous stream fuel contacts the combustible materials for mixing the gaseous fuel with air surrounding the combustible materials and with the portion of aspirated air, forming a flammable mixture. The flammable mixture can be automatically ignited by the heat of combustion provided by an open source of ignition adjacent the combustible materials.

Abstract: Apparatus and a process are provided for treating used drilling mud, particularly that produced during clearwater drilling. A structural and highway transportable skid comprises two or more settling tanks connected in succession. Flocculation aids settling of solids to the bottom and clarified liquid forms at the surface. Clarified liquid flows from one tank to the next successive tank. Clarified liquid is produced from the last of the successive settling tanks. The tanks have flat bottoms. Passageways extend between each successive tank for gravity-flowing liquid from one tank to successive settling tank. A solids tank or centrifuge is also mounted within the skid. The solids and settling tanks are located for weight-balancing. A rotational suction is positioned in the bottom of each settling tank and having one or more radially extending conduits which rotate about an axis and have inlets at their distal ends which traverse an inscribed circular path about the periphery of the tank's bottom.