Method for solidification of waste, and apparatus, waste form, and solidifying material therefor
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United States of America Patent
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Oct 31, 1995
Grant Date -
N/A
app pub date -
Sep 17, 1993
filing date -
Sep 18, 1992
priority date (Note) -
Expired
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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.
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