Title:
【発明の名称】有害金属を含有する土壌の除染方法
Document Type and Number:
Japanese Patent JP2908029
Kind Code:
B2
Abstract:
Soil including sand and clays contaminated with nuclear waste materials are decontaminated by treating with anhydrous liquid ammonia alone or in combination with solvated electrons. Methods comprise concentrating radionuclides, such as plutonium and uranium in the fines of soil and clay to yield residual soil products which are sufficiently free of contaminants to allow reclamation. Economics are improved over aqueous systems since ammonia can be recovered and recycled. By concentrating nuclear wastes in soil fines space requirements ordinarily needed for storage of untreated soil and handling costs can be significantly reduced.
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Inventors:
MOKU ROBAATO DABURYUU
HEIDATSUKU ARAN EFU
ABERU ARUBAATO II
HEIDATSUKU ARAN EFU
ABERU ARUBAATO II
Application Number:
JP51027996A
Publication Date:
June 21, 1999
Filing Date:
September 12, 1995
Export Citation:
Assignee:
KOMODOA APURAIDO TEKUNOROJIIZU INC
International Classes:
A62D3/34; A62D3/36; B09C1/00; B09C1/02; B09C1/08; C22B7/00; C22B43/00; C22B60/02; G21F9/00; G21F9/08; G21F9/12; G21F9/28; G21F9/30; A62D101/22; A62D101/24; A62D101/26; A62D101/28; A62D101/43; (IPC1-7): G21F9/28; B09C1/02; B09C1/04; B09C1/08; G21F9/28
Domestic Patent References:
| JP3500982A | ||||
| JP9501354U |
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)