| 摘要 |
Provided is a method for fixing carbon dioxide using waste. First, it is possible to make a material containing asbestos to be harmless to improve the fixation efficiency of carbon dioxide and to generate a raw material for cement through carbonate mineralization by heat treating an material containing asbestos at 710-840 °C, injecting a carrier solution, and injecting carbon dioxide. In addition, it is possible to fix carbon dioxide using the reaction of asbestos board waste and carbon dioxide and to employ calcium carbonate, a synthesized final product, as a raw material for cement by pulverizing an asbestos board, injecting the pulverized asbestos board into a carrier solution to prepare an asbestos board solution, injecting carbon dioxide into the asbestos board solution to fix carbon dioxide, and heat treating the same so as to make asbestos harmless. Furthermore, it is possible to fix carbon dioxide through the synthesis of calcium carbonate (calcite) using the reaction of asbestos board waste and carbon dioxide and to employ calcium carbonate, a synthesized final product, as a raw material for cement by injecting an asbestos board into a carrier solution to form slurry, injecting carbon dioxide into the slurry, and pressurizing and heating the same at 0.1-0.5 MPa and at 100-150 °C, respectively. |
