| 摘要 |
PROBLEM TO BE SOLVED: To provide a clarifying method of a polluted body containing hexavalent chromium by which handling is easy and influence on circumstances is low. SOLUTION: Reducing sugar which is a saccharide having reducibility is added to soil or the like containing hexavalent chromium to reduce the hexavalent chromium to trivalent chromium. Further a chelating agent for fixing and insolubilizing the trivalent chromium is added to the soil or the like. COPYRIGHT: (C)2009,JPO&INPIT
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