Method of cleaning up lead-contaminated soil
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Aug 16, 2007
app pub date -
Mar 10, 2005
filing date -
Mar 17, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
[PROBLEMS TO BE SOLVED] To effectively clean up lead-contaminated soil through phytoremediation aiming at decontamination with the use of a plant. [MEANS FOR SOLVING PROBLEMS] A plant species which is rich in oxalic acid is grown in soil contaminated with lead and/or a compound thereof by sowing a seed or transplanting a seedling. After the plant species rich in oxalic acid is allowed to absorb and accumulate lead and/or the compound, the plant is harvested and removed. As the plant rich in oxalic acid, any of plants belonging to the family Polygonaceae, Oxalidaceae, Chenopodiaceae, Araceae, Begoniaceae and Musaceae or a combination thereof is used. [SELECTED DRAWING] Non
First Claim
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