公开(公告)号：US10137486B1

公开(公告)日：2018-11-27

申请号：US15906175

申请日：2018-02-27

Applicant: Chevron U.S.A. Inc.

Inventor： Roopa Kamath ,  Schaun Malcolm Smith ,  Deyuan Kong ,  Gunther H. Dieckmann ,  Cesar Ovalles

IPC: B09C1/00 ,  B09C1/02 ,  B09C1/06 ,  B09C1/08 ,  B09C1/10

Abstract: Contaminant-containing soil can be remediated by subjecting the soil to microwave irradiation to heat the soil to a combustion temperature of from 150° C. to 1200° C. to initiate combustion. A target amount of the contaminant in the soil is destroyed. An oxidizer gas can be flowed through the soil using a gas blower and at least one gas injection line and controlled at a rate such that a self-sustaining smoldering combustion front is formed that moves through the soil. A microwave absorber additive can be added to the soil to accelerate the heating of the soil. At least one waveguide connected to a source of microwave energy directs microwaves into the soil.