Author : Hazel Gonzales 1
Date of Publication :9th November 2017
Abstract: Oil was added (20%) to the food waste composition used in this part of the study and the extent of biodegradation of food waste and oil was investigated. The biological solubilization system was operated at different food waste loading (10, 20 and 40 kg/m3/d) with the food waste containing 20% of oil. At 10 kg/m3/d food waste loading, almost 50% of the total oil input was decomposed and even though food waste loading was increased, the amount of decomposed oil for each run remains the same (0.78 kg/m3/d on the average). Oil input of 1 kg/m3/d or lower is acceptable to the biological solubilization system and could result to total decomposition while increasing the oil loading beyond 1 kg/m3/d will not result to further oil decomposition. The oil loading to the system was considerably high resulting to difficulty in achieving higher percentage of oil decomposition. Thus, the system can probably lead to a higher rate and more efficient oil decomposition and waste mineralization when oil loading is reduced (1 kg/m3/d or lower).
Reference :
-
- Hemmi, H., Shimoyama, T., Nakayama, T., Hoshi, K. and Nishino, T. 2004. Molecular Biological Analysis of Microflora in a Garbage Treatment Process under Thermoacidophilic Conditions. J. Biosci. Bioeng. 97(2), 119-126.
- Wang, Q., Narita, J., Xie, W., Ohsumi, Y., Kusano, K., Shirai, Y. and Ogawa, H.I. 2002. Effects of Anaerobic/Aerobic Incubation and Storage Temperature on Preservation and Deodorization of Kitchen Garbage. Biores. Technol. 84, 213-220.
- Nakano, K. and Matsumura, M. 2001. Improvement of Treatment Efficiency of Thermophilic Oxic Process for Highly Concentrated Lipid Wastes by Nutrient Supplementation. J. Biosci. Bioeng. 92(6), 532-538.
- Haruta, S., Nakayama, T., Nakamura, K., Hemmi, H., Ishii, M., Igarashi, Y. and Nishino, T. 2005. Microbial Diversity in Biodegradation and Reutilization Processes of Garbage. J. Biosci. Bioeng. 99 (1), 1-11.
- Wang, Q., Yamabe, K., Narita, J., Morishita, M., Ohsumi, Y., Kusano, K., Shirai, Y. and Ogawa, H.I. 2001. Suppression of Growth of Putrefactive and Food Poisoning Bacteria by Lactic Acid Fermentation of Kitchen Waste. Process Biochem. 37, 351-357.