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Received May 11, 2005
Accepted September 5, 2005
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Removal of hydrogen sulfide, benzene and toluene by a fluidized bed bioreactor
Department of Environmental Engineering, Pusan National University, Busan 609-735, Korea 1Department of Pharmaceutical Engineering, Inje University, Gimhae, Gyongnam 621-749, Korea
kjoh@pusan.ac.kr
Korean Journal of Chemical Engineering, January 2006, 23(1), 148-152(5), 10.1007/BF02705707
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Abstract
The dominant off gases from publicly owned treatment works include hydrogen sulfide, benzene, and toluene. In this research, hydrogen sulfide oxidized by Bacillus cereus, and benzene with toluene were removed by VOC-degrading microbial consortium. The optimum operating condition of the fluidized bed bioreactor including both microorganisms was 30 ℃, pH 6-8, and 150 cm of liquid bed height. The critical loading rate of hydrogen sulfide, benzene and toluene in the bioreactor was about 15 g/m3 h, 10 g/m3 h and 12 g/m3 h, respectively. The fluidized bed bioreactor showed an excellent elimination capacity for 580 hours of continuous operation, and maintained stable removal efficiency at sudden inlet concentration changes.
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Oh KH, Kim JC, J. Korean Soc. Environ. Eng., 18, 489 (1996)
Oh KJ, Kim D, Lee IH, Environ. Pollut., 99, 87 (1998)
Oh KJ, Seo MH, Son HJ, Kim D, Korean J. Chem. Eng., 15(2), 177 (1998)
Oh KJ, Kim YS, Cho SK, Kim D, Korean J. Chem. Eng., 19(6), 1026 (2002)
Oh YS, Shareefdeen Z, Baltzis BC, Bartha R, Biotechnol. Bioeng., 44(4), 533 (1994)
Park MS, Han JH, Yoo SS, Lee EY, Lee SG, Park S, Korean J. Chem. Eng., 22(3), 418 (2005)
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Yamada H, Goto S, Korean J. Chem. Eng., 21(4), 773 (2004)
Yang Y, Allen ER, J. Air Waste Manage. Assoc., 44, 863 (1994)
