Uniform vapor pathways for soil evaporative desorption

摘要

Disclosed is a method and a system of uniform vapor pathways for soil evaporative desorption. In one embodiment, a batch of contaminated soil is placed inside a treatment compartment through a hopper. The contaminated soil is moved across an inner length of the treatment compartment. As the contaminated soil moves toward a far end of the treatment compartment, planes surrounding the contaminated soil vibrates to facilitate mixing and loosening of the contaminated soil, thereby creating uniform vapor pathways around the surface and within the contaminated soil. A plurality of helical stem auger comprising helical flights may rotate to further mix and loosen the contaminated soil. Heat is applied to the contaminated soil to desorb contaminates within the soil. A vapor extraction line within a core of the hollow stem auger suctions vaporized contaminates out of the treatment compartment and into a reclamation system.

主权项

1. A thermal desorption soil remediation system, comprising:
a treatment compartment; at least one rod comprising a plurality of helical flights positioned within an inner length of the treatment compartment and configured to rotate, wherein the rotation of the at least one rod facilitates mixing of contaminated soil within the treatment compartment; at least one heater configured to deliver heat to the contaminated soil; at least one vapor extraction line configured to extract vaporized volatile contaminates from the contaminated soil.