INSOLUBILIZING MATERIAL FOR SPECIFIC HAZARDOUS SUBSTANCE AND METHOD FOR INSOLUBILIZING SPECIFIC HAZARDOUS SUBSTANCE WITH SAME

摘要

The present invention relates to a method for treating soil in which soil is added and kneaded or sprayed onto the soil surface to treat the heavy metals which are contained in the vicinity of the soil or near the surface of the soil in a consistently neutral region to effectively insolubilize and fix In addition, the object of the present invention is to provide an insoluble fires of certain harmful substances (heavy metals, etc.) of high practical value, which are neutral in consideration of environment in which the treated material can be definitely reused, and a method of insolubilization using the same . In order to attain this object, the present invention provides a water-soluble aluminum compound which is not strongly basic and which is not amorphous and which can be treated in a state in which the soil is not in a strongly basic region consistently of pH 11 or more, , A non-strongly basic, non-insoluble fire of a specific hazardous material containing one or more combined components selected from the group consisting of a calcium compound, a magnesium compound and a phosphate compound.