|発明の名称||HEAVY METAL-CONTAMINATED SOIL TREATMENT METHOD|
PROBLEM TO BE SOLVED: To provide a heavy metal-contaminated soil treatment method by which soil is cleaned by insolubilizing heavy metals such as lead contained in the soil and treated soil can be effectively utilized as the soil as it is.
SOLUTION: The heavy metal-contaminated soil is brought into contact with metal particles at least a part of which is nano size and which acts as a heavy metal insolubilizing agent, thereby insolubilizing the heavy metal. The metal particles are preferable to be provided as a metal dispersion that is obtained by pulverizing a mixture of a solid metal and a water adsorbing/desorbing agent which adsorbs and desorbs water and has a water control function and/or a porous inorganic material, till at least a part of the solid metal becomes nano size and dispersing thus obtained metal particles in the water adsorbing/desorbing agent and/or the porous inorganic material. The heavy metal-contaminated soil is blended with the metal dispersion in a simple manner and then is left to attain insolubilization of the heavy metal.
- 公立大学法人県立広島大学 地域連携センター
- URL: http://www.pu-hiroshima.ac.jp/soshiki/renkei/acceplance.html
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