This study deals with inorganic Carbon dioxide Capture Utilization (CCU) by using seawater-based industrial wastewater. Industrial wastewater, which contains plenty of cations such as Ca2+ and Mg2+, is considered as a cation source for mineral carbonation. Modeled industrial wastewater was used to study the tendency of mineral carbonation on various condition. Cation concentration of industrial wastewater was modified at various levels and then reacted with fully CO2- absorbed 30wt.% monoethanolamine (MEA) solution. A metal carbonate precipitated as a result of the reaction, and the same experiment was performed with 1/3, 2/3 CO2-absorbed MEA solution to study the tendency of carbonation under different CO3 2− conditions. The amount of precipitate was increased proportionally to the cation concentration and the amount of absorbed CO2. Most of the precipitate was calcium carbonate (CaCO3), although other metal carbonates were also formed. Most of the CaCO3 was found in calcite form, but vaterite and aragonite were also formed under specific conditions. Based on the experimental results, we conclude that by controlling the concentration of cations and CO3 2−, we were able to optimize mineral carbonation conditions. We also noticed that low CO3 2− concentration in MEA solutions is advantageous for producing high quality calcium carbonate crystals. Inductively Coupled Plasma (ICP), X-ray Diffraction (XRD), and Scanning Electron Microscopy (SEM) analyses were performed to analyze the precipitate.

I. 서 론
 II. 연구방법
  1. 실험재료
  2. 실험장치 및 방법
 III. 결과 및 고찰
  1. CO2 흡수특성
  2. 탄산염 생성수율에 대한 분석
  3. XRD 및 SEM 분석을 통한 탄산염 생성물 분석 및결정구조 분석
 IV. 결 론
 사 사
 References

• 김인준(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Injun Kim
• 강동우(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Dongwoo Kang
• 유윤성(연세대학교 화공생명공학과, Department of Chemical and Biomolecular Engineering, Yonsei University) | Yunsung Yoo
• 김병환(대우건설 기술연구원 플랜트환경연구팀, Plant & Environmental Research Team, Daewoo Institute of Construction Technology) | Byung Hwan Kim
• 박진원(연세대학교 화공생명공학과, 국립환경과학원, Department of Chemical and Biomolecular Engineering, Yonsei University, National Institute of Environmental Research) | Jinwon Park Corresponding author