Method and apparatus for treatment of contaminated soil with dioxine, agricultural pesticides, oil, organic chemicals and volatile heavy metals
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United States of America Patent
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Nov 16, 2021
Grant Date -
Jul 2, 2020
app pub date -
Apr 17, 2018
filing date -
Apr 28, 2017
priority date (Note) -
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Abstract
The present invention relates to a method for treating contaminated soil. A method for treating contaminated soil according to the present invention comprises: a flushing step of inserting a spraying rod including a nozzle into soil to spray a flushing liquid or an oxidizing liquid thereto; a first collection step of collecting floating material from the soil after the flushing step; a first phase separation step of separating the floating material collected in the first collection step into a liquid phase material and a solid phase material; a heating step of inserting a heating member into the solid fraction separated in the phase separation step to heat the solid fraction; a second collection step of collecting steam generated by the heating step; and a pyrolysis step of separating a gas phase material from the floating material from the floating material separated in the second collection step and performing heat treatment.
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