Abstract
Purpose
The twofold aim of this study was to optimize nutrients important for methane yield in substrate mixtures and to assess the effect of the optimized nutrients on methane production.
Method
Augmented simplex lattice design was used on three substrates, i.e., matooke peels (MPs), cassava peels (CPs), and sweet potato peels (SPs) wherein 16 ratio combinations were assessed for their macro- and micronutrient compositions and methane production potential. Experimental data was simulated using canonical polynomial models to determine mixture combinations with optimal nutrients stimulatory to methane yield.
Results
Six optimization solutions with the global optimal having a desirability of 0.93 and a ratio of 0.611:0.375:0.015 were observed to be localized over the design space. Biomethane experiments were in agreement with the optimized mixture ratios as ratios that gave the highest methane yield of 0.3 Nm3CH4/kg VS and above lay in the optimized design region.
Conclusion
Therefore, charts showing optimized regions of different substrate mixtures in terms of their nutrients can be a tool in biogas digester operations.
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References
Álvarez, J., Otero, L., & Lema, J. (2010). A methodology for optimising feed composition for anaerobic co-digestion of agro-industrial wastes. Bioresource Technology, 101(4), 1153–1158.
Angelidaki, I., Alves, M., Bolzonella, D., Borzacconi, L., Campos, J., Guwy, A., ... Van Lier, J. (2009). Defining the biomethane potential (BMP) of solid organic wastes and energy crops: a proposed protocol for batch assays. Water Science and Technology, 59(5), 924–934.
AOAC (2006) (942.05). Determination of ash in animal feed (18th ed.). Gaitherburg: Association of Official Analytical Chemists International.
AOAC (2000) (985.01). Metals and other elements in plants (17th ed.). Gaitherburg: Association of Official Analytical Chemists International.
Appels, L., Baeyens, J., Degrève, J., & Dewil, R. (2008). Principles and potential of the anaerobic digestion of waste-activated sludge. Progress in Energy and Combustion Science, 34(6), 755–781. https://doi.org/10.1016/j.pecs.2008.06.002.
Berglund, M., & Börjesson, P. (2006). Assessment of energy performance in the life-cycle of biogas production. Biomass and Bioenergy, 30(3), 254–266.
Chen, Y., Cheng, J. J., & Creamer, K. S. (2008). Inhibition of anaerobic digestion process: a review. Bioresource Technology, 99(10), 4044–4064. https://doi.org/10.1016/j.biortech.2007.01.057.
Cornell, J. (2002). Experiments with mixtures. Designs, models and the analysis of mixture data (3rd ed.). New York: Wiley.
Demirel, B., & Scherer, P. (2011). Trace element requirements of agricultural biogas digesters during biological conversion of renewable biomass to methane. Biomass and Bioenergy, 35(3), 992–998. https://doi.org/10.1016/j.biombioe.2010.12.022.
Fehr, M., De Castro, M. S. M. V., & Calcado, M. D. R. (2000). A practical solution to the problem of household waste management in Brazil. Resources, Conservation and Recycling, 30(3), 245–257. https://doi.org/10.1016/S0921-3449(00)00063-X.
Garcia-Peña, E. I., Parameswaran, P., Kang, D. W., Canul-Chan, M., & Krajmalnik-Brown, R. (2011). Anaerobic digestion and co-digestion processes of vegetable and fruit residues: process and microbial ecology. Bioresource Technology, 102(20), 9447–9455. https://doi.org/10.1016/j.biortech.2011.07.068.
Gunaseelan, N. V. (1997). Anaerobic digestion of biomass for methane production: a review. Biomass and Bioenergy, 13(1–2), 83–114. https://doi.org/10.1016/S0961-9534(97)00020-2.
Hanc, A., Novak, P., Dvorak, M., Habart, J., & Svehla, P. (2011). Composition and parameters of household bio-waste in four seasons. Waste Management, 31(7), 1450–1460. https://doi.org/10.1016/j.wasman.2011.02.016.
Hansen, T. L., Schmidt, J. E., Angelidaki, I., Marca, E., Jansen, J. l. C., Mosbæk, H., & Christensen, T. H. (2004). Method for determination of methane potentials of solid organic waste. Waste Management, 24(4), 393–400. https://doi.org/10.1016/j.wasman.2003.09.009.
Heo, N. H., Park, S. C., & Kang, H. (2004). Effects of mixture ratio and hydraulic retention time on single-stage anaerobic co-digestion of food waste and waste activated sludge. Journal of Environmental Science and Health, Part A, 39(7), 1739–1756.
Katongole, C. B., Sabiiti, E., Bareeba, F., & Ledin, I. (2011). Utilization of market crop wastes as animal feed in urban and peri-urban livestock production in Uganda. Journal of Sustainable Agriculture, 35(3), 329–342.
Kim, M., Kim, S., & Kim, S. (2017). Effect of proximate composition ratios for biogas production. Journal of Biosystems Engineering, 42(3), 155–162. https://doi.org/10.5307/JBE.2017.42.3.155.
Kinobe, J. R., Gebresenbet, G., Niwagaba, C. B., & Vinnerås, B. (2015). Reverse logistics system and recycling potential at a landfill: a case study from Kampala City. Waste Management, 42, 82–92. https://doi.org/10.1016/j.wasman.2015.04.012.
Komakech, A. J., Banadda, N. E., Kinobe, J. R., Kasisira, L., Sundberg, C., Gebresenbet, G., & Vinneras, B. (2014). Characterization of municipal waste in Kampala, Uganda. Journal of the Air & Waste Management Association (1995), 64(3), 340–348.
Krishania, M., Kumar, V., Vijay, V. K., & Malik, A. (2013). Analysis of different techniques used for improvement of biomethanation process: a review. Fuel, 106, 1–9.
Li, Y., Zhang, R., Chen, C., Liu, G., He, Y., & Liu, X. (2013). Biogas production from co-digestion of corn stover and chicken manure under anaerobic wet, hemi-solid, and solid state conditions. Bioresource Technology, 149(0), 406–412. https://doi.org/10.1016/j.biortech.2013.09.091.
Mabala, R. (2015). WhatsApp group inspired me into farming. Uganda Daily Monitor Newspaper. Retrieved from https://www.monitor.co.ug/magazines/Farming/-whatsApp-group-inspired-me-into-farming-/689860-2837854-i5d3ygz/index.html.
Macias-Corral, M., Samani, Z., Hanson, A., Smith, G., Funk, P., Yu, H., & Longworth, J. (2008). Anaerobic digestion of municipal solid waste and agricultural waste and the effect of co-digestion with dairy cow manure. Bioresource Technology, 99(17), 8288–8293. https://doi.org/10.1016/j.biortech.2008.03.057.
Marañón, E., Castrillón, L., Quiroga, G., Fernández-Nava, Y., Gómez, L., & García, M. M. (2012). Co-digestion of cattle manure with food waste and sludge to increase biogas production. Waste Management, 32(10), 1821–1825. https://doi.org/10.1016/j.wasman.2012.05.033.
Ogwueleka, T. C. (2013). Survey of household waste composition and quantities in Abuja, Nigeria. Resources, Conservation and Recycling, 77, 52–60. https://doi.org/10.1016/j.resconrec.2013.05.011.
Pobeheim, H., Munk, B., Johansson, J., & Guebitz, G. M. (2010). Influence of trace elements on methane formation from a synthetic model substrate for maize silage. Bioresource Technology, 101(2), 836–839. https://doi.org/10.1016/j.biortech.2009.08.076.
Schattauer, A., Abdoun, E., Weiland, P., Plöchl, M., & Heiermann, M. (2011). Abundance of trace elements in demonstration biogas plants. Biosystems Engineering, 108(1), 57–65. https://doi.org/10.1016/j.biosystemseng.2010.10.010.
Speece, R. E. (1996). Anarobic biotechnology for industrial wastewater. Nashville: Archea Press.
Tumutegyereize, P., Mugenyi, R., Ketlogetswe, C., & Gandure, J. (2016). A comparative performance analysis of carbonized briquettes and charcoal fuels in Kampala-urban, Uganda. Energy for Sustainable Development, 31, 91–96. https://doi.org/10.1016/j.esd.2016.01.001.
Walla, C., & Schneeberger, W. (2008). The optimal size for biogas plants. Biomass and Bioenergy, 32(6), 551–557. https://doi.org/10.1016/j.biombioe.2007.11.009.
Zaher, U., Li, R., Jeppsson, U., Steyer, J.-P., & Chen, S. (2009). GISCOD: General integrated solid waste co-digestion model. Water Research, 43(10), 2717–2727. https://doi.org/10.1016/j.watres.2009.03.018.
Funding
Support for this research was made possible through a capacity building competitive grant Training the next generation of scientists provided by the Carnegie Cooperation of New York through the Regional Universities Forum for Capacity Building in Agriculture (RUFORUM) and Office of Research and Development (ORD) University of Botswana. Grant number: RU/2015/DFS/INTRA ACP/01
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Tumutegyereize, P., Ketlogetswe, C., Gandure, J. et al. Substrate Mixture Optimization of Nutrients Needed for Methane Yield. J. Biosyst. Eng. 44, 103–111 (2019). https://doi.org/10.1007/s42853-019-00012-2
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DOI: https://doi.org/10.1007/s42853-019-00012-2