METHOD FOR SUPPRESSING ELUTION OF HEAVY METALS CONTAINED IN AT LEAST ONE OF FLY ASH AND CLINKER ASH

摘要

To provide a new method for suppressing the elution of heavy metals contained in fly ash or clinker ash by a simple and economical method.SOLUTION: In a method for suppressing the elution of heavy metals, fluorine and boron contained in fly ash or clinker, the fly ash or the clinker ash is performed with mechanochemical treatment. Further, the mechanochemical treatment has an effect reducing the pH value of the eluate of the fly ash or the clinker ash. The mechanochemical treatment is preferably milling treatment using a planetary type ball mill.SELECTED DRAWING: Figure 2