| 초록 |
After Industrial Revolution, the amount of fossil fuel usage have been drastically increased and this resulted in the increased concentration of greenhouse gases (GHGs) in atmosphere. Among 6 types of representative GHGs, the amount of carbon dioxide occupies approximately 90%. Hence, carbon reduction technologies have been developed. Among some of the carbon reduction technologies, Carbon Capture and Utilization (CCU) method have been got its attention by many researchers. There are many ways to utilize carbon dioxide gas. One of the promising method is to convert carbon dioxide into metal carbonate salts such as calcium carbonate through the reaction between metal ion and captured CO2. In this study, concentrated industrial wastewater was used to secure metal ion. The wastewater produced from refined salt production facility was used and carbon dioxide was converted to high purity calcium carbonate. Unlike previous method, calcium ions were peparated in the form of gypsum and it was converted to calcium carbonate. By using ICP-OES, SEM and XRD, characteristics of produced carbonate salts were investigated. |
