DESULFURIZATION IN A PLATE-TYPE GAS-LIFT PHOTOBIOREACTOR USING LIGHT EMITTING DIODES

Kim YJ; Kim BW; Chang HN

Korean Journal of Chemical Engineering, Vol.13, No.6, 606-611, November, 1996

Hydrogen sulfide gas was removed in a 2-dimensional gas-lift reactor by the photosynthetic miicroorganism Chlorobium thiosulfatophilum using light emitting diodes (LEDs) as a light source. LEDs saved light energy by 99% compared with the incandescent light source. The plate-type gas-lift reactor removed hydrogen sulfide five times better per unit mg of protein, and performed two times better in the maximum performance per unit luminous flux, com- pared with cylindrical fermentors.

Keywords:Photosynthetic;Desulfurization;Light Energy;LED;Plate-type Reactor

[References]

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Kim BW, Chang HN, Biotechnol. Prog., 7, 495 (1991)
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[1] Amick CL, Illumination (Sect. 26), In Fink, D.G. and Beaty H.W. (ed.), "Standard Handbook for Electrical Engineers," (12th ed.), McGraw-Hill Co., New York (1987)

[2] Bradford MM, Anal. Chem., 72, 248 (1976)

[3] Buisman CJN, Geraats BG, Ijspeert P, Lettinga G, Biotechnol. Bioeng., 35, 50 (1990)

[4] Cork DJ, Garunas R, Sajjad A, Appl. Environ. Microbiol., 45, 913 (1983)

[5] Cornet JF, Dussap CG, Gros JB, AIChE J., 40(6), 1055 (1994)

[6] Greenberg AE, Connors JJ, Jenkins D, "Standard Method for the Examination of Water and Wastewater," 15th edition, American Public Health Association, Washington, D.C. (1981)

[7] Gustafsson G, Cao Y, Treacy GM, Klavetter F, Colaneri N, Heeger AJ, Nature, 257, 477 (1992)

[8] Kim BW, Kim EH, Chang HN, Biotechnol. Tech., 5, 343 (1991)

[9] Kim BW, Chang HN, Biotechnol. Prog., 7, 495 (1991)

[10] Kim BW, Chang HN, Kim IK, Lee KS, Biotechnol. Bioeng., 41, 583 (1992)

[11] Koch HP, J. Chem. Soc., 394 (1949)

[12] Sublette KL, Sylvester ND, Biotechnol. Bioeng., 29, 249 (1987)

[13] Wang DIC, Cooney CL, Demain AL, Dunnill P, Humphrey AE, Lilly MD, "Fermentation and Enzyme Technology," John Wiley and Sons, Inc., 161 (1979)