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Received September 2, 2014
Accepted March 6, 2015
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대기오염제어를 위한 생물살수여과법에서 물질전달 Model과 계수에 관한 연구
Mass Transfer Model and Coefficient on Biotrickling Filtration for Air Pollution Control
영남대학교 환경공학과, 712-749 경북 경산시 대학로 280 1경북대학교 환경공학과, 702-701 대구 북구 대학로 80
Department of Environmental Engineering, Yeungnam University, 280 Daehak-ro Gyeongsan, Gyeongbuk 712-749, Korea 1Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, Korea
Korean Chemical Engineering Research, August 2015, 53(4), 489-495(7), 10.9713/kcer.2015.53.4.489 Epub 29 July 2015
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Abstract
대기오염물질처리를 위한 생물살수여과법에서 물질전달현상을 이해하기 위한 선행 실험결과를 기초로 각각의 운전조건에서 기체/액체(살수액), 기체/고체(미생물)와 액체/고체에서의 model을 이용하여 물질전달계수를 평가하였다. 생물살수여과법에서 기/액에서는 정상상태물질수지, 그리고 액/고와 기/고에서는 동적물질수지를 이용하여 물질전달 model을 확립하고 그 결과를 고찰하였다. 물질전달 model은 여과탑을 일정크기 구획하여, 각 구획에서 동적 물질수지식을 수치해석 전산코드를 이용해 계산하였다. 동적물질수지식을 이용하여 계산된 결과는 실험결과와 비교하여 생물살수여과법에서 기/액, 기/고, 액/고 각상간의 물질전달계수(KLa)를 산정하였다. 본 연구에서는 대기오염제어를 위한 생물살수여과법에서 물질전달계수를 결정하기 위한 실험방법개발과 model을 이용하여 물질전달현상을 고찰하였다.
A fundamental mathematical model for mass transfer processes has been used to understand the air pollution control process in biotrickling filtration and to evaluate the mass transfer coefficients of gas/liquid (trickling liquid), gas/solid (biomass) and liquid/solid based upon experimental results and mathematical model calculations for selected operating conditions. The mass transfer models for the utilization of the steady-state mass balance for gas/liquid, and dynamic mass balance model for gas/solid & liquid/solid in biotrickling filters were established and discussed. The mass transfer model considered the reactor to comprise finite sections, for each of which dynamic mass balances for gas/solid and liquid/solid system were solved by numerical analysis code (numerical iteration). To determine the mass transfer coefficients (KLa) of gas/liquid, gas/solid & liquid/solid in a biotrickling filter, the calculation results based upon mass balance equation was optimized to coincide with the experimental results for the selected operating conditions. Finally, this study contributed the development of experimental methods and discussed the mathematical model to determine the mass transfer coefficients in a biotrickling filtration for air pollution control.
Keywords
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Alonso C, Zhu X, Suidan MT, Kim BR, Kim BJ, Water Sci. Technol., 39(7), 139 (1999)
Deshusses MA, Hamer G, Dunn IJ, Environ. Sci. Technol., 29, 1048 (1995)
Deshusses MA, Hamer G, Dunn IJ, Environ. Sci. Technol., 29, 1059 (1995)
Deshusses MA, Hamer G, Dunn IJ, Biotechnol. Bioeng., 49(5), 587 (1996)
Zarook SM, Shaikh AA, Ansar Z, Chem. Eng. Sci., 52(21), 4135 (1997)
Shareefdeen Z, Baltzis BC, Biotechnol. Bioeng., 41, 512 (1993)
Baltzis BC, Mpanias CJ, Bhattacharya S, Biotechnol. Bioeng., 72(4), 389 (2001)
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Won YS, Korean J. Chem. Eng., 29(12), 1745 (2012)
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