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HEAVY METAL INSOLUBILIZATION METHOD IN FLUID BED FLY ASH, AND PRODUCTION METHOD OF CIVIL ENGINEERING MATERIAL HAVING INSOLUBILIZED HEAVY METAL
PROBLEM TO BE SOLVED: To provide a heavy metal insolubilization method capable of suppressing elution of a heavy metal effectively, while taking properties peculiar to fluid bed fly ash in consideration.SOLUTION: In a heavy metal insolubilization method in fluid bed fly ash, a layer is formed so that the fluid bed fly ash has a thickness of 5 mm or more without using an additive other than an excipient, and then fired at the temperature of 700-1,100°C.SELECTED DRAWING: None
【課題】流動床フライアッシュ特有の性状を考慮しつつ、効果的に重金属の溶出を抑制することのできる、重金属不溶化方法を提供する。【解決手段】賦形剤以外の添加剤を用いることなく流動床フライアッシュを５ｍｍ以上の厚さになるよう層を形成した後、７００〜１１００℃の温度で焼成することを特徴とする、流動床フライアッシュ中の重金属不溶化方法。【選択図】なし
HEAVY METAL INSOLUBILIZATION METHOD IN FLUID BED FLY ASH, AND PRODUCTION METHOD OF CIVIL ENGINEERING MATERIAL HAVING INSOLUBILIZED HEAVY METAL
PROBLEM TO BE SOLVED: To provide a heavy metal insolubilization method capable of suppressing elution of a heavy metal effectively, while taking properties peculiar to fluid bed fly ash in consideration.SOLUTION: In a heavy metal insolubilization method in fluid bed fly ash, a layer is formed so that the fluid bed fly ash has a thickness of 5 mm or more without using an additive other than an excipient, and then fired at the temperature of 700-1,100°C.SELECTED DRAWING: None
【課題】流動床フライアッシュ特有の性状を考慮しつつ、効果的に重金属の溶出を抑制することのできる、重金属不溶化方法を提供する。【解決手段】賦形剤以外の添加剤を用いることなく流動床フライアッシュを５ｍｍ以上の厚さになるよう層を形成した後、７００〜１１００℃の温度で焼成することを特徴とする、流動床フライアッシュ中の重金属不溶化方法。【選択図】なし
HEAVY METAL INSOLUBILIZATION METHOD IN FLUID BED FLY ASH, AND PRODUCTION METHOD OF CIVIL ENGINEERING MATERIAL HAVING INSOLUBILIZED HEAVY METAL
流動床フライアッシュ中の重金属不溶化方法、及び重金属が不溶化された土木資材の製造方法
KATAOKA MAKOTO (author) / HONMA KENICHI (author)
2016-09-23
Patent
Electronic Resource
Japanese
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