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1. (WO2018199529) METHOD AND APPARATUS FOR GROUND COLLECTION OF FLOATING MATERIAL AND UNDERGROUND SPRAYING FOR PURIFICATION OF SOIL CONTAMINATED WITH VOLATILE HEAVY METAL AND ORGANIC MATTER, SUCH AS DIOXIN, PESTICIDE, AND OIL

Pub. No.:    WO/2018/199529    International Application No.:    PCT/KR2018/004415
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Apr 18 01:59:59 CEST 2018
IPC: B09C 1/00
B09C 1/02
B09C 1/08
B09C 1/06
Applicants: BEAUTIFUL ENVIRONMENTAL CONSTRUCTION CO., LTD.
아름다운 환경건설(주)
Inventors: LEE, Jong-yeol
이종열
Title: METHOD AND APPARATUS FOR GROUND COLLECTION OF FLOATING MATERIAL AND UNDERGROUND SPRAYING FOR PURIFICATION OF SOIL CONTAMINATED WITH VOLATILE HEAVY METAL AND ORGANIC MATTER, SUCH AS DIOXIN, PESTICIDE, AND OIL
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 cleaning step of inserting a spraying rod including a nozzle into soil to spray a cleaning liquid or an oxidizing liquid thereto; a first collection step of collecting a floating material from the soil after the cleaning 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 separated in the second collection step and performing heat treatment. When contaminated soil is treated by the method according to the present invention, contaminants can be separated from the soil with high efficiency without a separate step such as soil movement.