| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a treatment method of waste refuse incineration fly ash for reducing the content of hexavalent chromium or dioxins being a harmful substance contained in the waste refuse incineration fly ash and capable of forming a pellet hard to collapse. <P>SOLUTION: The treatment method of the waste refuse incineration fly ash has a pellet granulation process for compounding powdery aluminum with the waste refuse incineration fly ash containing hexavalent chromium and granulating the waste refuse incineration fly ash to obtain the waste refuse incineration fly ash pellet and a reducing treatment process for heat-treating the waste refuse incineration fly ash at 800-1,500°C to reduce hexavalent chromium to trivalent chromium. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
