Characterization of Food Waste from a Campus Canteen as Potential Feedstock for Biogas Production
Keywords:anaerobic digestion, biogas introduction, characteristics, feeding frequency, food waste, organic loading rate
Food waste collected from the Ubaya canteen was characterized for its potential for use as anaerobic feedstock. It was collected for 3 weeks on a daily basis and treated with 2 different pretreatments, i.e. mechanic and mechanic-thermal. The result showed that the physical and chemical properties of the food waste in the 3-week time period of collecting were not significantly different for both pretreatments. The VS/TS ratio was around 96.4% to 97.076% and C/N was in the range of 17.295 to 17.813 for the mechanic and mechanic-thermal treatments. Four semi-batch mesophilic anaerobic digesters were used in this study, with 1.215 gVS/L fed once (R1) and twice daily (R3); 2.43 gVS/L fed once (R2) and twice daily (R4). The maximum methane yield was determined to be 64.61 mL/gVS in R1 after 5 days of incubation and 57.41 mL/gVS in R3 after 4 days of incubation. Systems R2 and R4 showed maximum methane yields of 43.15 mL/gVS and 19.1 mL/gVS respectively.
The Economist, Food Sustainability Index: Food Loss and Waste, http://foodsustainability.eiu.com/food-loss-and-waste/ (4 December 2019)
Zhang, C., Su, H. & Tan, T., Batch and Semi-continuous Anerobic Digestion of Food Waste in a Dual Solid-Liquid System, Bioresource Technology, 145, pp. 10-16, 2013.
Zhang, R., El-Mashad, H.M., Harman, K. Wang, F., Liu, G., Choate, C. & Gambel, P., Characterization of Food Waste as Feedstock for Anaerobic Digestion, Bioresource Technology, 98, pp. 929-935, 2007.
Liu, C., Wang, W., Anwar, N., Ma, Z, Liu, G. & Zhang, R., Effect of organic Loading Rate on Anaerobic Digestion of Food Waste under Mesophilic and Thermophilic conditions, Energy & Fuels, 31(3), pp. 2976-2984, 2017.
Banks, C.B., Zhang, Y., Jiang, Y. & Heaven, S., Trace Element Requirements for Stable Food Waste Digestion at Elevated Ammonia Concentrations, Bioresource Technology, 104, pp. 127-135, 2012.
Browne, J.D. & Murphy, J.D., The Impact of Increasing Organic Loading in Two Phase Digestion of Food Waste, Renewable Energy, 71, pp. 69-76, 2014.
Leung, D.Y.C. & Wang, J., An Overview on Biogas Generation from Anaerobic Digestion of Food Waste, International Journal of Green Energy, 13(2), pp. 119-131, 2016.
Kondusamy, D. & Kalamdhad, A.S., Pre-treatment and Anaerobic Digestion of Food Waste for High Rate Methane Production - A Review, Journal of Environmental Chemical Engineering, 2, pp. 1821-1830, 2014.
Zhang, Y., Banks, C.J. & Heaven, S., Co-digestion of Source Segregated Domestic Food Waste to Improve Process Stability, Bioresource Technology 114, pp. 168 -178, 2012.
Zhang, L. Lee, Y.W. & Jahng, D., Anaerobic Co-Digestion of Food Waste and Piggery Wastewater: Focusing on the Role of Trace Element, Bioresource Technology, 102, pp. 5048-49, 2011.
Liu, C., Wang, W., Anwar, N., Ma, Z., Liu, G. & Zhang, R., Effect of Organic Loading Rate on Anaerobic Digestion of Food Waste under Mesophilic and Thermophilic Conditions, Energy Fuels, 32. pp. 2976-2984, 2017.
Banks, C.J, Zhang, Y., Jiang, Y. & Heaven, S., Trace Element Requirements for Stable Food Waste Digestion at Elevated Ammonia Concentrations, Bioresource Technology, 104, 127-135, 2012.
Wang, Q., Wang, X., Wang, X. & Ma, H., Glucoamylase Production from Food Waste by Aspergillus Niger Under Submerged Fermentation, Process Biochemistry, 43, pp. 280-286, 2008.
Zhang, C., Xiao, G., Peng, L., Su, H. & Tan, T., The Anaerobic Co - Digestion of Food Waste and Cattle Manure, Bioresource Technology, 129, pp. 170-176, 2013.
Guo, X.H., Sun, F.Q., Sun, Y.J., Lu, H.H. & Wu, W.X., Characterization and Energy Potential of Food Waste from Catering Service in Hangzhou, China, Waste Management & Research, 32(8), pp. 791-795, 2014.
Zhang, C., Su, H., Baeyens, J. & Tianwei, T., Reviewing the Anaerobic Digestion of Food Waste for Biogas Production, Renewable and Sustainable Energy Review, 38, pp. 383-392, 2014.
McCarty, P.L., Anaerobic Waste Treatment Fundamentals III: Toxic Materials and Control, Public Works, 11, pp. 91-94, 1964.
Anwar, N., Wang, W., Zhang, J., Li, Y., Chen, C., Liu, G. & Zhang, R., Effect of Sodium Salt on Anaerobic Digestion of Kitchen Waste, Water Science & Technology, 73(8), pp. 1865-1871, 2016.
Jiang, J., Zhang, Y., Li, K., Wang, Q., Gong, Q. & Li, M., Volatile Fatty Acids Production from Food Waste: Effects of pH, Temperature and Organic Loading Rate, Bioresource Technology, 143, pp. 525-530, 2013.
Tamkin, A., Martin, J., Castano, J., Ciotola, R., Rosenblum, J. & Bisesi, M., Impact of Organic Loading Rates on the Performance of Variable Temperature Biodigesters, Ecological Engineering, 78, pp. 87-94, 2015.