A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR INSOLUBILIZATION OF HEAVY METAL IN COAL ASH, AND METHOD FOR MANUFACTURING CONSTRUCTION MATERIAL IN WHICH HEAVY METAL IS INSOLUBILIZED
PROBLEM TO BE SOLVED: To provide a method for insolubilization of a heavy metal which can sufficiently suppress elution of a heavy metal in coal ash and can satisfy wide environment standard, and a method for manufacturing a construction material with use of such a coal ash.SOLUTION: A method for insolubilization of a heavy metal in coal ash characterized in that a ferrous sulfate and a blast furnace cement B kind are added to coal ash, water of a quantity suitable for slurrying is further added to the coal ash and mixing thereof is performed.SELECTED DRAWING: None
【課題】石炭灰中の重金属の溶出を十分に抑制して、幅広い環境基準をも満たすことのできる重金属不溶化方法、及びかかる石炭灰を用いた土木資材の製造方法を提供する。【解決手段】石炭灰に対し、硫酸第一鉄及び高炉セメントＢ種を添加し、さらにスラリー化する量の水を添加して混練することを特徴とする、石炭灰中の重金属不溶化方法。【選択図】なし
METHOD FOR INSOLUBILIZATION OF HEAVY METAL IN COAL ASH, AND METHOD FOR MANUFACTURING CONSTRUCTION MATERIAL IN WHICH HEAVY METAL IS INSOLUBILIZED
PROBLEM TO BE SOLVED: To provide a method for insolubilization of a heavy metal which can sufficiently suppress elution of a heavy metal in coal ash and can satisfy wide environment standard, and a method for manufacturing a construction material with use of such a coal ash.SOLUTION: A method for insolubilization of a heavy metal in coal ash characterized in that a ferrous sulfate and a blast furnace cement B kind are added to coal ash, water of a quantity suitable for slurrying is further added to the coal ash and mixing thereof is performed.SELECTED DRAWING: None
【課題】石炭灰中の重金属の溶出を十分に抑制して、幅広い環境基準をも満たすことのできる重金属不溶化方法、及びかかる石炭灰を用いた土木資材の製造方法を提供する。【解決手段】石炭灰に対し、硫酸第一鉄及び高炉セメントＢ種を添加し、さらにスラリー化する量の水を添加して混練することを特徴とする、石炭灰中の重金属不溶化方法。【選択図】なし
METHOD FOR INSOLUBILIZATION OF HEAVY METAL IN COAL ASH, AND METHOD FOR MANUFACTURING CONSTRUCTION MATERIAL IN WHICH HEAVY METAL IS INSOLUBILIZED
石炭灰中の重金属不溶化方法、及び重金属が不溶化された土工資材の製造方法
KATAOKA MAKOTO (author) / ICHIMURA TAKAHISA (author) / TANAKA NOBUHISA (author)
2016-04-07
Patent
Electronic Resource
Japanese
| European Patent Office | 2016
HEAVY METAL INSOLUBILIZED COMPOSITION AND METHOD FOR REPAIRING HEAVY METAL CONTAMINATED SOIL
| European Patent Office | 2016
HEAVY METAL-INSOLUBILIZED SOLIDIFICATION MATERIAL AND TECHNIQUE FOR IMPROVING CONTAMINATED SOIL
| European Patent Office | 2019