| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method of using coal ash for a ground material, which is implemented by efficiently separating fine particles by means of a simple structure to eliminate trace elements, and detoxicating the coal ash. <P>SOLUTION: The method of using coal ash for a ground material is composed of: a slurry forming step of forming slurry by adding a surface active agent and an aqueous medium to the coal ash, and agitating and mixing a resultant material; a classifying and separating step of classifying and separating particles of 5μm or more of the slurry by a classifying and separating means; and a washing step of washing the classified and separated particles of 5μm or more with clean water. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
