Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
권호 표지

Evaluation of Flotation Efficiency and Particle Separation Characteristics of Carbon Dioxide Bubbles using Collision Efficiency Model

단일포집자충돌(SCC) 모델을 이용한 이산화탄소기포의 입자분리특성과 부상효율 평가

  • Lee, Jun-Young (Department of Environmental Engineering, Chonbuk National University) ;
  • Kim, Seong-Jin (Department of Health and Environmental Engineering, Yosu Hanyong College) ;
  • Yoo, Young-Hoon (Department of Environmental Engineering, Chonbuk National University) ;
  • Chung, Paul-Gene (Department of Environmental Engineering, Chonbuk National University) ;
  • Kwon, Young-Ho (Department of Environmental and Chemical Engineering, Seonam University) ;
  • Park, Yang-Kyun (Department of Environmental and Chemical Engineering, Seonam University) ;
  • Kwak, Dong-Heui (Department of Environmental and Chemical Engineering, Seonam University)
  • 이준용 (전북대학교 환경공학과) ;
  • 김성진 (여수한영대학 보건환경학과) ;
  • 유영훈 (전북대학교 환경공학과) ;
  • 정팔진 (전북대학교 환경공학과) ;
  • 권영호 (서남대학교 환경화학공학과) ;
  • 박양균 (서남대학교 환경화학공학과) ;
  • 곽동희 (서남대학교 환경화학공학과)
  • Published : 2012.01.30
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Abstract

In this century, scientists realized that carbon dioxide gas in the atmosphere cause a greenhouse effect which affects the planet's temperature. Therefore lots of attempts have carried out to decrease the discharge of carbon dioxide gas in the field. The dissolved carbon dioxide flotation (DCF) process was developed as an alternative of DAF process to decrease the discharge and reuse of carbon dioxide as well as to save energy consumption. To investigate the particle separation characteristics and the flotation efficiency of carbon dioxide, SCC model was employed in the DCF process which has been applied extensively for the evaluation and simulation in the DAF process. The simulation results by the SCC model revealed the predicted curve of flotation efficiency became decreased gradually over the optimal pressure range of saturator about 1.6 atm in accordance with the experiment results of the DCF pilot plant and the size distribution and the bubble volume concentration of $CO_{2}$ bubbles depending on the operation pressure of saturator. The findings through the simulation results led to the conclusion that there was no significant difference between $CO_{2}$ bubbles and air bubbles, affecting on the practical flotation efficiency, in terms of the initial collision and attachment efficiency.

Keywords

References

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