10.2190/HDHC-TPV1-DAYN-AQY2 HDHCTPV1DAYNAQY2 193 ANAEROBIC COMPOSTING OF SOLID WASTE IN BATCH-LOADING DIGESTERS 193 206 20040521 20040521 20040521 20040521 HDHCTPV1DAYNAQY2.pdf http://baywood.metapress.com/link.asp?target=contribution&id=HDHCTPV1DAYNAQY2 3 R. JINDAL S. KRIENGKASEM Suranaree University of Technology, Nakhon Ratchasima, Thailand Pilot-scale experiments were conducted to study the anaerobic composting of food waste mixed with hay, and organic commingled waste mixed with septage. Location of this study was the Suranaree Military Camp in Nakhon Ratchsima City in northeastern Thailand. Hay was mixed with the food waste in a 1/0.34 ratio by volume (1/4.54 ratio by weight), and septage was mixed with the organic commingled waste in a 1/7.06 ratio by Volume (1/1.58 ratio by weight). Out of a total of four composting runs, the first run was carried out for 90 days, and the other three for 100 days each. Initial C/N ratio was kept at 25-30/1. Maximum temperature during the anaerobic composting process in the four runs ranged between 52-603C and was achieved within three days from the start-up time. C/N ratio of the end product ranged between 13.9-18.5. A total coliform bacteria kill was achieved in the range of 99.81-99.99%. A. Wheatley, Anaerobic Digestion: A Waste Treatment Technology, SCI, New York, 1991. C. Polprasert, Organic Waste Recycling, John Wiley & Sons Ltd, Baffins Lane, Chichester, West Sussex, England, 1996. K. R. Rabbini, R. Jindal, H. Kubota, and L. Obeng, Environmental Sanitation Reviews: Composting of Domestic Refuse, Environmental Sanitation Information Center 10/11(34), 1983. P. Sakulpram and M. Chomngam, Production of Biogas and Organic Fertilizer by Anaerobic Digestion of Organic Materials, A Research Report, Mahidol University (in Thai), 1979. Y. Han and R. R. Dague, Laboratory Studies on Temperature-Phased Anaerobic Digestion of Domestic Primary Sludge, Water Environmental Research, 69, pp. 11391143, 1997. K. R. Pagilla, H. Kim, and T. Cheunbarn, Aerobic Thermophilic and anaerobic mesophilic treatment of swine waste, Water Research, 34:10, pp. 2747-2753, 1996. E. Epstein, The Science of Composting, Technomic Publishing Co., Inc., Canton, Massachusetts, 1997. R. T. Haug, Composting Engineering: Principles and Practice, Ann Arbor Science, Michigan, 1980. D. A. Stafford, B. I. Wheatley, and D. E. Hughes, Anaerobic Digestion, Applied Science Publishers Ltd, London, 1979. H. B. Gotaas, Composting, Department of Engineering, University of California, Berkeley, 1956. P. J. L. Derikx, H. J. M. Op Den Camp, C. Van Der Drift, L. J. L. D. Van Griensven, and G. D. Vogels, Biomass and Biological Activity during the Production of Compost Used as a Substrate in the Mushroom Cultivation, Applied and Environmental Microbiology, 56, pp. 3029-3034, 1990. E. Smet, H. V. Langenhove, and I. D. Bo, The Emission of Volatile Compounds during the Aerobic and the Combined Anaerobic/Aerobic Composting of Biowaste, Atmospheric Environment, 33, pp. 1295-1303, 1999. M. J. Alvarez and S. M. P. Llabres, Anaerobic Digestion of Organic Solid Wastes: An Overview of Research Achievements and Perspectives, Bioresource Technology, 74, pp. 3-16, 2000. W. Six and L. De Baere, Dry Anaerobic Conversion of Municipal Solid Waste by Means of the Dranco Process, Water Science and Technology, 25, pp. 295-300, 1992. J. Gorecki, G. Bortone, and A. Tilche, Anaerobic Treatment of the Centrifuged Solid Fraction of Piggery Wastewater in an Inclined Plug Flow Reactor, Water Science and Technology, 28:2, pp. 107-114, 1993.