| 摘要 |
PROBLEM TO BE SOLVED: To quickly clean the soil contaminated with organic substances. SOLUTION: The top end of a rod 11 is attained to the contaminated soil by digging the soil. Aqueous solution of ferrous sulfate is poured into the first flow passage 12 formed inside the rod 11 and aqueous solution of hydrogen peroxide is poured into the second flow passage 13 formed inside the rod 11. The aqueous solution of ferrous sulfate is ejected from an opening part of the top end of the first flow passage 12 to the inside of the soil, while the aqueous solution of hydrogen peroxide is ejected from an opening part of the top end of the second flow passage 13 to the inside of the soil, stirring blades 14, 15 and 16 are rotated respectively and the soil into which the aqueous solution of ferrous sulfate and the aqueous solution of hydrogen peroxide have been ejected, is mixed and stirred. |
