INSOLUBILIZATION MATERIAL OF HEAVY METAL OR THE LIKE AND MANUFACTURING METHOD THEREFOR, QUALITY CONTROL METHOD OF INSOLUBILIZATION MATERIAL OF HEAVY METAL OR THE LIKE, AND INSOLUBILIZATION METHOD OF HEAVY METAL OR THE LIKE

• Main Authors: ITAYA YUKI, KUNINISHI TAKESHI, HAYASHI SHINTARO, SHIMOKAWA YOSHINOBU
• Format: Patent
• Language: English; Japanese
• Published: 17.10.2019
• Subjects: ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; DISPOSAL OF SOLID WASTE; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; THEIR RELEVANT APPARATUS; TRANSPORTING

To provide an insolubilization material of heavy metal of the like, excellent in insolubilization function of heavy metal or the like such as selenium, especially not only tetravalent selenium (hereafter "selenium (IV)", but also hexavalent selenium (hereafter "selenium (VI)" or fluorine, a manufacturing method therefor, a quality control method of the insolubilization material of heavy metal or the like, and an insolubilization method of heavy metal or the like.SOLUTION: There is provided an insolubilization material of heavy metal or the like containing burned dolomite having content of CaCOof 0≤x≤75.5 (mass%), and content of CaO of 2.3≤x≤75.5 (mass%), and a reductant with a mass ratio of 9:1 to 1:9. The burned dolomite is prepared by mixing and burning a raw material to have content of CaCOof 0≤x≤75.5 (mass%), and content of CaO of 2.3≤x≤75.5 (mass%), and the resulting burned dolomite and the reductant is blended at the mass ratio of 9:1 to 1:9.SELECTED DRAWING: Figure 1 【課題】セレン、特に４価のセレン（以下「セレン（IV）」）のみならず、６価のセレン（以下、「セレン（VI）」）やフッ素等の重金属等不溶化機能に優れる重金属等不溶化材及びその製造方法、重金属等不溶化材の品質管理方法並びに重金属等不溶化方法の提供。【解決手段】ＣａＣＯ３の含有量が０≦ｘ≦７５．５（質量％）でＣａＯの含有量が、２．３≦ｘ≦７５．５（質量％）である焼成ドロマイトと、還元剤とを、質量比９：１〜１：９の割合で含有する重金属等不溶化材。ＣａＣＯ３の含有量が０≦ｘ≦７５．５（質量％）でＣａＯの含有量が、２．３≦ｘ≦７５．５（質量％）となるように原料を混合して焼成することにより焼成ドロマイトを調製し、得られた焼成ドロマイトと還元剤とを質量比９：１〜１：９の割合で配合することにより製造される。【選択図】図１