Abstract: Apparatus for in-situ remediation of contaminant-bearing earthen material includes a generally cylindrical tined assembly; a housing for mounting the tined assembly for rotational motion; an hydraulic driver for delivering torque to rotate the tined assembly; and an additive supply system configured to drop an additive into the space defined by and along the length of the cylindrical tined assembly.

Abstract: A disposal of waste material including water, volatile components and vitrifiable components, the waste material is heated in a dehydrator to remove the water, heated in a high-temperature dryer to vaporize hydrocarbon liquids, and then fed to the focus point of a primary plasma reactor where plasma arc jets are focused on the surface of a pool of the vitrifiable components. At the focus point the vitrifiable components are melted, and the volatile components are volatized. The melted vitrifiable components are received in a quench chamber where they solidify on a quench roller and are broken into chips and delivered to a receiving area. Heat from the quench chamber is transferred to the dehydrator and high-temperature dryer. The hydrocarbon liquids and volatized components are fed to a secondary plasma reactor where they are disassociated into their elemental components.