Title:
METHOD FOR SUPPRESSING ELUTION OF HEXAVALENT CHROMIUM FROM INCINERATION FLY ASH OF FUEL CONTAINING CHROMIUM AND COMBUSTION APPARATUS TO BE USED THEREFOR
Document Type and Number:
Japanese Patent JP2008272707
Kind Code:
A
Abstract:
To more economically and reliably suppress elution of hexavalent chromium from fly ashes discharged out of a combustion apparatus using a chromium-containing organic matter as a fuel for a long time.
In a combustion apparatus using the chromium-containing organic matter as a fuel, an auxiliary reaction agent is blown upstream of a bag filter for cleaning treatment of combustion gas and the fly ashes trapped by the bag filter are fired to transform the hexavalent chromium in the fly ashes into a stable chromium mineral and thus suppress elution of hexavalent chromium.
Inventors:
Suzuki, Tomoko
Samejima, Ryoji
Samejima, Ryoji
Application Number:
JP2007000122102
Publication Date:
November 13, 2008
Filing Date:
May 07, 2007
Export Citation:
Assignee:
TAKUMA CO LTD
International Classes:
B09B3/00; A62D3/37; B01D53/64; F23J1/00; A62D101/43