| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide the in-situ purification method of ground contaminated with heavy metal, with which insolubilizing effect of heavy metal can be sufficiently obtained and re-dissolution of heavy metal can be prevented, too. <P>SOLUTION: In the in-situ purification method of ground contaminated with heavy metal, the ground contaminated with heavy metal is purified in-situ by injecting an insolubilizing liquid which insolubilizes heavy metal into the ground contaminated with heavy metal via a well disposed in the ground contaminated with heavy metal which is contaminated with heavy metal (specifically, fluorine). The insolubilizing liquid prepared by neutralizing a solution containing an aluminum-based chemical (specifically, aluminum sulfate) or a cerium-based chemical (cerium chloride) is used. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
