Evaluation of the effect of initial solid matter concentration and season on anaerobic biodegradation of municipal solid wastes

The necessity for reduction of fossil fuel consumption and the increasing energy costs drives the interest in development of alternative renewable energies during past years. OFMSW (Organic Fraction of Municipal Solid Wastes) is a valuable source, while it can be converted to biogas via anaerobic digestion. In this study The anaerobic digestibility and methane generation potential of the organic fraction of municipal solid wastes (OFMSW) sampled during three seasons (autumn, winter and summer) of a year were determined using batch bioreactors with varying initial dry solid matter ratios (DM:5-35 %). Batch experiments were carried out both with and without anaerobic inoculum. On the basis of the laboratory results, biogas production potentials were determined to be in the range of 229 - 484 m3/tonDM for experiment using anaerobic inoculum and 84 – 176 m3 /ton DM for experiments without inoculum. The best organic matter combination belongs to autumn season and the best concentration was observed as 20% DM.

Keywords:

Biochemical Methane Production Biogas, Anaerobic Digestion, Organic Fraction of Municipal Solid Wastes,

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A. Nielfa, R. Cano R and M. Vinot M et al., "Anaerobic digestion modelling of the main components of organic fraction of municipal solid wastes". Process Safety and Environmental Protection, vol. 94, pp. 180-187, March 2015.
Y.C. Dennis and L.J. Wang," An overview on biogas generation from anaerobic digestion of food waste" International Journal Of Green Energy, vol. 13 (2), pp. 119-131, February 2016.
H.Hartman and B.K. Ahring, "Anaerobic digestion of the organic fraction of municipal solid waste: Inﬂuence of co-digestion with manure", Water Research, vol. 39: pp.1543-1552, April 2005.
H.A. Igoni, M.J. Ayotamuno and C.L. Eze et al. , "Designs of anaerobic digesters for producing biogas from municipal solid-waste" Applied Energy ,vol.85, pp. 430-438, June 2008.
L. Kenneth, R. Mullholland and W.Robert et al. "Sustainability: Waste minimization, green chemistry and ınherently safer processing" Environmental Progress ,vol.19 (4), pp. 260-268, 2000.
D.Elango, M. Pulikesi and P. Baskaralingam et al. "Production of biogas from municipal solid waste with domestic sewage" Journal of Hazardous Materials, vol. 141, pp.301-304, March 2007.
L. Zhang and D. Jahing D. "Long term anaerobic digestion of food waste by trace elements" Waste Management , vol.32, pp. 1509-1515, April 2012.
P.H.L. Nguyen, P. Kuruparan and C. Visvanathan, "Anaerobic digestion of municipal solid waste as a treatment prior to landfill". Bioresource Technology,vol. 98, pp.380–387, January 2007.
F. Xu, Z.W. Wang and Y. Li, "Predicting the methane yield of lignocellulosic biomass in mesophilic solid-state anaerobic digestion based on feedstock characteristics and process parameters" Bioresource Technology, vol.173, pp.168–176, September 2014.
X. Gomez, M.J. Cuetos and J. Cara, et al., "Anaerobic co-digestion of primary sludge and the fruit and vegetable fraction of the municipal solid wastes Conditions for mixing and evaluation of the organic loading rate" Renewable Energy, vol.31, pp. 2017–2024, October 2006.
J.B. Van Lier, A. Tilche and B.K. Ahringet al., "New perspectives in anaerobic digestion". Water Science and Technology: A Journal of the International Association on Water Pollution Research, vol. 43, pp1-18, 2001.
C.F. Liu, X.Z. Yuan and G.M. Zeng et al. "Prediction of methane yield at optimum pH for anaerobic digestion of organic fraction of municipal solid waste". Bioresource Technology , vol.99, pp.882–888, March 2008.
H. Hartman, H.B. Moller and B.K. Ahring, "Efficiency of the anaerobic treatment of the organic fraction of municipal solid waste: Collection and pretreatment". Waste Management & Research, vol.22, pp.35–41, December 2003.
V. Facchin, C. Cayinata and P. Pavan, et al., "Batch and continuous mesophilic anaerobic digestion of food waste: Effect of trace elements supplementation." Chemical Engineering Transactions, vol 32, pp.74-91, 2013.
H.M. El-Mashad, J.A. McGarvey, R. Zhang, "Performance and microbial analysis of anaerobic digesters treating food waste and dairy manure." Biological Engineering, vol.1, pp. 233-242, 2008.
P. Börjesson and M. Berglund, "Environmental systems analysis of biogas systems—Part I: Fuel-cycle emissions". Biomass and Bioenergy, vol.30, pp.469-485, January 2006.
W.F. Owen, D.C. Stuckey and L.Y. Healy LY et al., "Bioassay for monitoring biochemical methane potential and anaerobic toxicity". Water Research, 13: 485-493, 1979.
F. J. Cecchi, P. Mata-Alvarez and G. Pavan et al. "Seasonal effects on anaerobic digestion of the source sorted organic fraction of municipal solid waste". Waste Management & Research, Vol. 10, pp. 435-443, October 1992.
J.A. Rintala and K.T. Jarvinen, "Full-scale mesophilic anaerobic co-digestion of municipal solid waste and sewage sludge: Methane production characteristics". Waste Management & Research, Vol.14, pp.163-170. March 1996.
L. Zhang, Y. W. Lee and D. Jahng, "Anaerobic co-digestion of food waste and piggery wastewater: Focusing on the role of trace elements." Bioresource Technology , vol.102(8), pp. 5048–5059, April 2011.