METHOD OF CLEANING UP LEAD-CONTAMINATED SOIL

摘要

[PROBLEMS] To effectively clean up lead-contaminated soil via phytoremediation aiming at cleaning up with the use of a plant. [MEANS FOR SOLVING PROBLEMS] Seeds or young seedlings of a plant being rich in oxalic acid are planted and grown in soil contaminated with lead and/or its compound. After allowing to absorb lead and/or its compound, the plant rich in oxalic acid is harvested and removed. As the plant rich in oxalic acid as described above, use is made of a plant belonging to the family Polygonaceae, Oxalidaceae, Chenopodiaceae, Araceae, Begoniaceae or Musaceae or a combination of the same.