Hazardous or toxic waste destruction or containment – Destruction or containment of radioactive waste – By fixation in stable solid media
Patent
1993-09-17
1995-10-31
Mai, Ngoclan
Hazardous or toxic waste destruction or containment
Destruction or containment of radioactive waste
By fixation in stable solid media
588 14, 588251, 588256, G21F 900
Patent
active
054631718
ABSTRACT:
Objective of the present invention is to provide a preferable solidified body ensuring performance of artificial barrier in a solidifying process for incombustible miscellaneous solid waste and other wastes such as calcined ashes by preventing generation of hydrogen gas by a reaction of amphoteric metal included in the waste with solidifying materials.
In order to suppress the reaction of the amphoteric metal with the solidifying materials, any one or arbitrary plurality of the following three means are provided in the solidifying materials;
(1) A means for forming protection film on surface of the amphoteric metal,
(2) A means for enhancing hydration reaction of cement,
(3) A means for reducing basicity of the solidifying materials.
In accordance with the present invention, a preferable solidified body can be obtained by a simple and easy method which does not necessitate separation and pre-treatment of the waste.
REFERENCES:
patent: 3837872 (1974-09-01), Conner
patent: 4129518 (1978-12-01), Huppert et al.
patent: 4505851 (1985-03-01), Funabashi et al.
patent: 4659511 (1987-04-01), Fukasawa et al.
patent: 4671897 (1987-06-01), Mori et al.
patent: 4671898 (1987-06-01), Hultgren
patent: 4775495 (1988-10-01), Izumida et al.
patent: 4943394 (1990-07-01), Lammertz et al.
patent: 5045241 (1991-09-01), Kuriyama et al.
patent: 5049285 (1991-09-01), Somerville et al.
Izumida Tatsuo
Kikuchi Makoto
Kiuchi Yoshimasa
Matsuda Masami
Nishi Takashi
Hitachi , Ltd.
Mai Ngoclan
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