Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32119
Pilot-scale Study of Horizontal Anaerobic Digester for Biogas Production using Food Waste

Authors: Yongsei Lee, Hyunsu Park, Youngseob Yu, Heechan Yoo, Sungin Yoo


A horizontal anaerobic digester was developed and tested in pilot scale for Korean food waste with high water contents (>80%). The hydrogen sulfide in the biogas was removed by a biological desulfurization equipment integrated in the horizontal digester. A mixer of the horizontal digester was designed to easily remove the sediment in the bottom and scum layers on surface in the digester. Experimental result for 120 days of operation of the pilot plant showed a high removal efficiency of 81.2% for organic substance and high stability during the whole operation period were acquired. Also food waste was treated at high organic loading rates over 4 kg•VS/m3∙day and a methane gas production rate of 0.62 m3/kg•VSremoved was accomplished. The biological desulfurization equipment inside the horizontal digester was proven to be an economic and effective method to reduce the biogas desulfurization cost by removing hydrogen sulfide more than 90% without external desulfurization equipments.

Keywords: Biogas, Biological desulfurization, Horizontal anaerobic digester, Korean food waste

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2909


[1] Ministry of Environment in Korea., Disposal and Reuse of Wastes in Korea, Ministry of Environment in Korea., 2007.
[2] Ward, A. J., Hobbs, P. J., Holliman, P. J., and Jones,D. L., "Optimisation of the anaerobic digestion of agricultural resources," Bioresour. Technol., vol. 99, pp. 7928-7940, 2008.
[3] Bolzonella, D., Innocenti, L, Pavan, P., Traverso, P., and Cecchi, F., "Semi-dry thermophilic anaerobic digestion of the organic fraction of municipal solid waste: focusing on the start-up phase," Bioresour. Technol., vol. 86, pp. 123-129, 2003.
[4] Pavan, P., Battistoni, P., and Mata-Alvarez, J., "Performance of thermophilic semi-dry anaerobic digestion process changing the feed biodegradability," Water Sci. Technol., vol. 41, pp. 75-81, 2000.
[5] Six, W. and De Baere, L., "Dry anaerobic conversion of municipal solid waste by means of the DRANCO process," Water Sci. Technol., vol. 25, pp. 295-300, 1992.
[6] Laclos, H. F., Desbois, S., and Saint-Joly, C. "Anaerobic digestion of municipal solid waste: VALORGA fullscale plant in Tilburg, the Netherlands," Water Sci. Technol., vol. 36, pp. 457-462, 1997.
[7] Willinger, A., Wyder, K., and Metzler. A. C., "KOMPOGAS-a new system for the anaerovic treatment of source separated waste," Water Sci, Technol., vol. 27, pp. 153-158, 1993.