• Comparative Assessment of Quantitative Methods determining the Amount of Calcium Carbonate Minerals derived from Biocalcification
  • Ahn, Chang-Min;Bae, Young-Shin;Ham, Jong-Heon;Cheon, Seung-Kyu;Kim, Chang-Gyun;
  • Department of Environmental Engineering, Inha University;SUDOKWON Landfill Site management corporation;SUDOKWON Landfill Site management corporation;SUDOKWON Landfill Site management corporation;Department of Environmental Engineering, Inha University;
  • 생물학적 칼슘화에 의해 생성된 CaCO3 광물의 정량분석 방법 비교 평가
  • 안창민;배영신;함종헌;천승규;김창균;
  • 인하대학교 환경공학과;수도권매립지관리공사 녹색기술연구센터;수도권매립지관리공사 녹색기술연구센터;수도권매립지관리공사 녹색기술연구센터;인하대학교 환경공학과;
Abstract
This study was performed to develop a method for quantitative analysis obtaining the amount of calcium carbonate minerals formed when Ca salts biomimetically reacted with carbon dioxide. There were two methods compared; 1) volumetric calcimeter method that determining the amount of released carbon dioxide after calcium carbonate minerals were acidified by 4N HCl and 2) Thermogravimetry-Differential Thermal Analysis (TG-DTA) adopting differential decomposition temperature breaking-up the structural link within calcium carbonate minerals. The comparisons were made by batch experiment (i.e., biocalcification process) along with control (i.e., nominal concentration of $CaCO_3$ prepared). For the control, TG-DTA took a minor root mean square deviation (RMSD) of 1.1~5.9 mg, whereas volumetric calcimeter exposed a greater RMSD of 28.3 mg. For the biocalcification, the amount of $CaCO_3$ was more precisely obtained for TG-DTA rather than that of volumetric calcimeter. It was decided that TG-DTA was more successfully used for quantitative analysis to observe the amount of calcium carbonate minerals derived from biocalcification.

Keywords: Biocalcification;Carbonate minerals;Volumetric calcimeter;TG-DTA;CCS (Carbon Capture & Sequestration);

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This Article

  • 2013; 18(5): 1-6

    Published on Oct 31, 2013

  • 10.7857/JSGE.2013.18.5.001
  • Received on Feb 6, 2013
  • Revised on Aug 20, 2013
  • Accepted on Sep 4, 2013