Title:
The disposal method of combustion ash, and its use
Document Type and Number:
Japanese Patent JP6248739
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an effective treating method of combustion ash where fluorine, boron, selenium and hexavalent chromium from the combustion ash can be treated to be soil environmental reference values or less in a shorter time and to provide an effective utilization method of combustion ash-treated matter obtained by the treating method.SOLUTION: A production method of combustion ash-treated matter includes a step where combustion ash, cement, a calcium source, an aluminum source, ferrous sulfate and water are mixed and reacted in such ratios as 1-20 pts.mass cement, 1-20 pts.mass calcium source in terms of hydrated lime, 0.5-15 pts.mass aluminum source in terms of aluminum sulfate, 0.5-10 pts.mass ferrous sulfate and 1 pts.mass or more and less than 30 pts.mass water based on 100 pts.mass of the combustion ash.
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Inventors:
Takashi Okumura
Gaku Yamamoto
Gaku Yamamoto
Application Number:
JP2014063413A
Publication Date:
December 20, 2017
Filing Date:
March 26, 2014
Export Citation:
Assignee:
Oji Holdings Co., Ltd.
International Classes:
B09B3/00; C09K3/18
Domestic Patent References:
| JP2012187517A | ||||
| JP2009028594A | ||||
| JP2006181535A | ||||
| JP2013017981A | ||||
| JP2014047121A | ||||
| JP2012213713A | ||||
| JP9225430A |
Attorney, Agent or Firm:
Patent Service Corporation Patent Office Sykes
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