| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for purifying matters (such as soil, sediment, sludge, or water) contaminated by a halogenated organic compound. SOLUTION: This purification method includes a stage wherein at least one reducing agent of which the normal electrode potential at 25 deg.C to a normal hydrogen electrode is 130 mV to -2,400 mV and which is selected from among iron-silicon alloys, titanium alloys, zinc alloys, manganese alloys, aluminum alloys, magnesium alloys, calcium alloys, and water-soluble compounds is added to matters contaminated by a halogenated organic compound.
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