Patent ID: 9004817
Filing Date: 2015-04-14
Classification: B09C,H05B

Abstract:
1. A soil remediation system for removing at least one contaminating substance from soil, the system comprising: a conveyor including an enclosure and configured to convey soil for remediation through the enclosure; a heating device configured to heat the soil conveyed in the enclosure to a temperature sufficient for vaporization at atmospheric pressure of the contaminating substance contained in the soil to produce an exhaust gas containing the vaporized substance; a storage tank in gas connection with the enclosure and configured to receive the exhaust gas containing the vaporized substance; an ionic liquid disposed within the storage tank to contact the exhaust gas containing the vaporized substance, wherein the ionic liquid is configured to trap the vaporized substance within the ionic liquid and remove the substance from the exhaust gas as the exhaust gas passes through the ionic liquid; a conducting tubing having at least a first end connected with the enclosure and a second end disposed within the ionic liquid to convey the exhaust gas containing the vaporized substance from the enclosure to the storage tank and into the ionic liquid; and a temperature maintaining device configured to maintain for maintaining the temperature of the exhaust gas vaporized substance in the conducting tubing at a temperature greater than the vaporization temperature of the vaporized substance in the exhaust gas.