| 摘要 |
PROBLEM TO BE SOLVED: To provide a calcined substance which makes possible the mass use of industrial wastes etc., specially wastes etc. containing a lot of arsenics, and is excellent in the performance for fixing arsenic (As). SOLUTION: The calcined substance has a hydraulic modulus (H. M.) of 0.4-1.1, As of 150 mg/kg or below, and then a bone dry density of 1.5-3.0 g/cm<SP>3</SP>. COPYRIGHT: (C)2007,JPO&INPIT
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