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MODIFICATION METHOD FOR SOLID MATTER INCLUDING CALCIUM SILICATE
To provide a modification method for a solid matter including calcium silicate, capable of reusing a solid residue as a roadbed material or an absorbent and having high treatment efficiency.SOLUTION: There is provided a regeneration method for a solid residue in which the calcium ions are eluted from a solid material including calcium silicate. The method comprises: an elution process of making the calcium ions elute in a neutral amino acid-including aqueous solution by adding a calcium-including solid material to the neutral amino acid-including aqueous solution; and a control process of controlling a basicity being the molar ratio of calcium oxide to silicon dioxide included in the solid residue.SELECTED DRAWING: Figure 1
【課題】固形物残渣を路盤材や吸着剤として再利用できる処理効率の高いケイ酸カルシウムを含む固形物の改質方法を提供する。【解決手段】ケイ酸カルシウムを含む固形物からカルシウムイオンを溶出させた固形物残渣を再生する方法であって、中性アミノ酸含有水溶液にカルシウムを含む固形物を添加して中性アミノ酸含有水溶液にカルシウムイオンを溶出させる溶出工程と、溶出工程でカルシウムイオンが溶出した固形物を固形物残渣として、固形物残渣に含まれる二酸化ケイ素に対する酸化カルシウムのモル比である塩基度を制御する制御工程と、を備えている。【選択図】図１
MODIFICATION METHOD FOR SOLID MATTER INCLUDING CALCIUM SILICATE
To provide a modification method for a solid matter including calcium silicate, capable of reusing a solid residue as a roadbed material or an absorbent and having high treatment efficiency.SOLUTION: There is provided a regeneration method for a solid residue in which the calcium ions are eluted from a solid material including calcium silicate. The method comprises: an elution process of making the calcium ions elute in a neutral amino acid-including aqueous solution by adding a calcium-including solid material to the neutral amino acid-including aqueous solution; and a control process of controlling a basicity being the molar ratio of calcium oxide to silicon dioxide included in the solid residue.SELECTED DRAWING: Figure 1
【課題】固形物残渣を路盤材や吸着剤として再利用できる処理効率の高いケイ酸カルシウムを含む固形物の改質方法を提供する。【解決手段】ケイ酸カルシウムを含む固形物からカルシウムイオンを溶出させた固形物残渣を再生する方法であって、中性アミノ酸含有水溶液にカルシウムを含む固形物を添加して中性アミノ酸含有水溶液にカルシウムイオンを溶出させる溶出工程と、溶出工程でカルシウムイオンが溶出した固形物を固形物残渣として、固形物残渣に含まれる二酸化ケイ素に対する酸化カルシウムのモル比である塩基度を制御する制御工程と、を備えている。【選択図】図１
MODIFICATION METHOD FOR SOLID MATTER INCLUDING CALCIUM SILICATE
ケイ酸カルシウムを含む固形物の改質方法
WAKIMOTO YOSHIKI (author) / YAMAGUCHI SHU (author)
2020-06-04
Patent
Electronic Resource
Japanese
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