SOIL PURIFYING METHOD AND SOIL PURIFYING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a soil purifying method which enables the purification of soil small in scale and specified in its polluted place at the original position and not requiring post-treatment, and a soil purifying apparatus. SOLUTION: The soil purifying apparatus is constituted so as to purifying soil at a place polluted with a volatile organochlorine compound (VOC) and includes an excavator 10 for evacuating soil toward the polluted place to form an evacuated hole, an over heated steam forming device 11 for forming overheated steam of 170-500°C and the injection pipe 12 inserted in the evacuated hole to jet overheated steam toward the polluted place. COPYRIGHT: (C)2008,JPO&INPIT