A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
INSOLUBILIZATION MATERIAL FOR ARSENIC-CONTAINING SLUDGE AND METHOD FOR ITS PRODUCTION
PROBLEM TO BE SOLVED: To provide insolubilization material for arsenic-containing sludge and method for its production which directly treat sludge containing arsenic at high concentration conforming to landfill standard stipulated in Notification No. 13 of the Ministry of the Environment.SOLUTION: Insolubilization material for arsenic-containing sludge covered with a mixture of mixed cement and slaked lime is a mixture of arsenic-containing sludge particles and mixed cement, in which the particle size of the insolubilization material is 0.5 mm or more and 5.0 mm or less, and insolubilization material for arsenic-containing sludge, in which the arsenic elution amount in arsenic elution test specified in Ministry of the Environment Notice No.13 is 0.3 mg/L or less.SELECTED DRAWING: Figure 2
【課題】高濃度の砒素を含有する汚泥を直接処理し、環境省告示１３号に定める埋立て基準に適合した砒素含有汚泥の不溶化材およびその製造方法を提供する。【解決手段】砒素を含有する汚泥の粒子と混合セメントの混合物が、混合セメントと消石灰の混合物で被覆された砒素含有汚泥の不溶化材であって、前記不溶化材の粒径が０.５ｍｍ以上５.０ｍｍ以下であり、環境省告示１３号に定める砒素溶出試験における砒素溶出量が０.３ｍｇ／Ｌ以下である、砒素含有汚泥の不溶化材。【選択図】図２
INSOLUBILIZATION MATERIAL FOR ARSENIC-CONTAINING SLUDGE AND METHOD FOR ITS PRODUCTION
PROBLEM TO BE SOLVED: To provide insolubilization material for arsenic-containing sludge and method for its production which directly treat sludge containing arsenic at high concentration conforming to landfill standard stipulated in Notification No. 13 of the Ministry of the Environment.SOLUTION: Insolubilization material for arsenic-containing sludge covered with a mixture of mixed cement and slaked lime is a mixture of arsenic-containing sludge particles and mixed cement, in which the particle size of the insolubilization material is 0.5 mm or more and 5.0 mm or less, and insolubilization material for arsenic-containing sludge, in which the arsenic elution amount in arsenic elution test specified in Ministry of the Environment Notice No.13 is 0.3 mg/L or less.SELECTED DRAWING: Figure 2
【課題】高濃度の砒素を含有する汚泥を直接処理し、環境省告示１３号に定める埋立て基準に適合した砒素含有汚泥の不溶化材およびその製造方法を提供する。【解決手段】砒素を含有する汚泥の粒子と混合セメントの混合物が、混合セメントと消石灰の混合物で被覆された砒素含有汚泥の不溶化材であって、前記不溶化材の粒径が０.５ｍｍ以上５.０ｍｍ以下であり、環境省告示１３号に定める砒素溶出試験における砒素溶出量が０.３ｍｇ／Ｌ以下である、砒素含有汚泥の不溶化材。【選択図】図２
INSOLUBILIZATION MATERIAL FOR ARSENIC-CONTAINING SLUDGE AND METHOD FOR ITS PRODUCTION
砒素含有汚泥の不溶化材およびその製造方法
INOUE RYOJI (author) / FUJITA TETSUO (author)
2018-08-02
Patent
Electronic Resource
Japanese
TOXIC SUBSTANCE INSOLUBILIZER AND METHOD FOR TOXIC SUBSTANCE INSOLUBILIZATION
| European Patent Office | 2016
| European Patent Office | 2016