METHOD AND APPARATUS FOR DECONTAMINATING CONTAMINATED SOIL

METHOD AND APPARATUS FOR DECONTAMINATING CONTAMINATED SOIL

PROBLEM TO BE SOLVED: To provide a method for decontaminating contaminated soil, by which boron-containing contaminated soil can be extracted. SOLUTION: The method for decontaminating contaminated soil comprises the steps of: throwing the contaminated soil 1 in a heat treatment apparatus 10; heating...

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Bibliographische Detailangaben
Hauptverfasser: TSUJII KUNIYO, TSUBOUCHI YASUSHI, ISHIKAWA NOBUHIRO, SUZUKI YOSHIHIKO, OMI YUICHI
Format: Patent
Sprache:eng
Schlagworte:
DISPOSAL OF SOLID WASTE
PERFORMING OPERATIONS
RECLAMATION OF CONTAMINATED SOIL
RECLAMATION OF CONTAMINED SOIL SOIL
TRANSPORTING
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for decontaminating contaminated soil, by which boron-containing contaminated soil can be extracted. SOLUTION: The method for decontaminating contaminated soil comprises the steps of: throwing the contaminated soil 1 in a heat treatment apparatus 10; heating the thrown soil to ≥900°C to turn boron existing in the soil the boron oxide, and with silicon oxide, aluminum oxide or sodium oxide existing in the soil and stabilize boron as a boron compound; and extracting the stabilized boron of a dried state together with soil particles each of which has ≤74 μm particle size and which are obtained by sorting the heat-treated soil. COPYRIGHT: (C)2007,JPO&INPIT