Effect of Variation in Co-Digestion Ratios of Matooke, Cassava and Sweet Potato Peels on Hydraulic Retention Time, Methane Yield and Its Kinetics — Oak Academic Publishing
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Effect of Variation in Co-Digestion Ratios of Matooke, Cassava and Sweet Potato Peels on Hydraulic Retention Time, Methane Yield and Its Kinetics
Department of Mechanical Engineering, University of Botswana, Gaborone, Botswana
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Department of Agricultural and Biosystems Engineering, Makerere University, Kampala, Uganda
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Department of Mechanical Engineering, University of Botswana, Gaborone, Botswana
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Department of Mechanical Engineering, University of Botswana, Gaborone, Botswana
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Department of Agricultural and Biosystems Engineering, Makerere University, Kampala, Uganda
1 Department of Mechanical Engineering, University of Botswana, Gaborone, Botswana
2 Department of Agricultural and Biosystems Engineering, Makerere University, Kampala, Uganda
3 Department of Mechanical Engineering, University of Botswana, Gaborone, Botswana
4 Department of Mechanical Engineering, University of Botswana, Gaborone, Botswana
5 Department of Agricultural and Biosystems Engineering, Makerere University, Kampala, Uganda
This paper presents the results of batch anaerobic co-digestion of matooke, cassava, and sweet potato peels and vines. These agricultural wastes and others form the biggest portion of household wastes in developing countries. However, they have remained an unexploited resource amidst the ever increasing needs of clean energy and waste disposal challenges. Efforts to use them individually as biogas substrates have been associated with process acidification failure resulting from their fast hydrolysis. The aim of this work was to exploit agricultural wastes is co-digestion among themselves and assess their effect on methane yield and its kinetics, pH and hydraulic retention time (HRT). Sixteen ratios of Matooke peels (MP), cassava peels (CP) and sweet potato peels (SP) were assessed in duplicate. Methane yield and its kinetics, pH and HRT demonstrated dependence on the proportion of substrates in the mixture. Depending on the ratio mixture, HRT increased to 15 days compared to less than 5 days for single substrates, hydrolysis rate constant (k) reduced to a range of 0.1 - 0.3 d -1 compared to single substrates whose k-values were above 0.5 d -1 , pH was maintained in the range of 6.38 - 6.43 and CH 4 yield increased by 15% - 200%. Ratios 2:1:0, 2:0:1, 0:1:2, 1:1:1 and 1:1:4 were consistent all through in terms of model fitting, having a positive synergetic effect on HRT, hydrolysis rate constant, lag phase and methane yield. However, more research is needed in maintaining the pH near the neutral for process stability assurance if household wastes are to be used as standalone substrates for biogas production without being co-substrates with livestock manure.
Rajendran, K., Aslanzadeh, S. and Taherzadeh, M.J. (2012) Household Biogas Digesters—A Review. Energies, 5, 2911-2942. https://doi.org/10.3390/en5082911
FAOSTAT (2016) Production Crops Africa. Food and Agriculture Organization of the United Nations Statistics Division. http://faostat3.fao.org/2014
Banga, M. (2011) Household Knowledge, Attitudes and Practices in Solid Waste Segregation and Recycling: The Case of Urban Kampala. Zambia Social Science Journal, 2.
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
Hanc, A., Novak, P., Dvorak, M., Habart, J. and Svehla, P. (2011) Composition and Parameters of Household Bio-Waste in Four Seasons. Waste Management, 31, 1450-1460. https://doi.org/10.1016/j.wasman.2011.02.016
House, D. (2006) Biogas Handbook. Being a Compendium of the Art and Science of Using Anything Once Alive to Produce a Burnable Gas for Powering Light, Automobiles, Ovens, Tractors, Water Heaters, Furnaces and Various Contraptions. Alternative House Information, USA, 285.
Ward, A.J., Hobbs, P.J., Holliman, P.J. and Jones, D.L. (2008) Optimisation of the Anaerobic Digestion of Agricultural Resources. Bioresource Technology, 99, 7928-7940. https://doi.org/10.1016/j.biortech.2008.02.044
Chynoweth, D.P., Owen, J.M. and Legrand, R. (2001) Renewable Methane from Anaerobic Digestion of Biomass. Renewable Energy, 22, 1-8. https://doi.org/10.1016/S0960-1481(00)00019-7
El-Mashad, H.M. and Zhang, R. (2010) Biogas Production from Co-Digestion of Dairy Manure and Food Waste. Bioresource Technology, 101, 4021-4028. https://doi.org/10.1016/j.biortech.2010.01.027
Angelidaki, I. and Ellegaard, L. (2003) Codigestion of Manure and Organic Wastes in Centralized Biogas Plants. Applied Biochemistry and Biotechnology, 109, 95-105. https://doi.org/10.1385/ABAB:109:1-3:95
Ganesh, R., Torrijos, M., Sousbie, P., Steyer, J.P., Lugardon, A. and Delgenes, J.P. (2013) Anaerobic Co-Digestion of Solid Waste: Effect of Increasing Organic Loading Rates and Characterization of the Solubilised Organic Matter. Bioresource Technology, 130, 559-569. https://doi.org/10.1016/j.biortech.2012.12.119
Heo, N.H., Park, S.C. and 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, 1739-1756. https://doi.org/10.1081/ESE-120037874
Liu, X., Gao, X.B., Wang, W., Zheng, L., Zhou, Y.J. and Sun, Y.F. (2012) Pilot-Scale Anaerobic Co-Digestion of Municipal Biomass Waste: Focusing on Biogas Production and GHG Reduction. Renewable Energy, 44, 463-468. https://doi.org/10.1016/j.renene.2012.01.092
Pitt, R.E., Cross, T.L., Pell, A.N., Schofield, P. and Doane, P.H. (1999) Use of in Vitro Gas Production Models in Ruminal Kinetics. Mathematical Biosciences, 159, 145-163. https://doi.org/10.1016/S0025-5564(99)00020-6
Sluiter, A., et al. (2008) Determination of Structural Carbohydrates and Lignin in Biomass. Laboratory Analytical Procedure.
Mussoline, W.A. and Wilkie, A.C. (2015) Anaerobic Digestion Potential of Coproducts Associated with Ethanol Production from Sweetpotato: A Review. Industrial Biotechnology, 11, 113-126. https://doi.org/10.1089/ind.2014.0027
APHA (2005) Standard Methods for the Examination of Water and Wastewaste. In American Public Health Association, American Water Works Association, Water Environment Federation. APHA, Washington DC.
Nielfa, A., Cano, R. and Fdz-Polanco, M. (2015) Theoretical Methane Production Generated by the Co-Digestion of Organic Fraction Municipal Solid Waste and Biological Sludge. Biotechnology Reports, 5, 14-21. https://doi.org/10.1016/j.btre.2014.10.005
AOAC (2006) Association of Official Analytical Chemists International.
Lay, J.-J., Li, Y.-Y. and Noike, T. (1997) Influences of pH and Moisture Content on the Methane Production in High-Solids Sludge Digestion. Water Research, 31, 1518-1524. https://doi.org/10.1016/S0043-1354(96)00413-7
Walker, M., Zhang, Y., Heaven, S. and Banks, C. (2009) Potential Errors in the Quantitative Evaluation of Biogas Production in Anaerobic Digestion Processes. Bioresource Technology, 100, 6339-6346. https://doi.org/10.1016/j.biortech.2009.07.018
El-Mashad, H.M. (2013) Kinetics of Methane Production from the Codigestion of Switchgrass and Spirulina platensis Algae. Bioresource Technology, 132, 305-312. https://doi.org/10.1016/j.biortech.2012.12.183
VDI-4630 (2006) Fermentation of Organic Materials: Characterisation of the Substrate, Sampling, Collection of Material Data, Fermentation Tests. Verlag des Vereins Deutscher Ingenieure, Düsseldorf, 92.
Veeken, A. and Hamelers, B. (1999) Effect of Temperature on Hydrolysis Rates of Selected Biowaste Components. Bioresource Technology, 69, 249-254. https://doi.org/10.1016/S0960-8524(98)00188-6
Donoso-Bravo, A., Pérez-Elvira, S. and Fdz-Polanco, F. (2010) Application of Simplified Models for Anaerobic Biodegradability Tests. Evaluation of Pre-Treatment Processes. Chemical Engineering Journal, 160, 607-614. https://doi.org/10.1016/j.cej.2010.03.082
Clarke, W.P., Radnidge, P., Lai, T.E., Jensen, P.D. and Hardin, M.T. (2008) Digestion of Waste Bananas to Generate Energy in Australia. Waste Management, 28, 527-533. https://doi.org/10.1016/j.wasman.2007.01.012
Appels, L., Baeyens, J., Degrève, J. and Dewil, R. (2008) Principles and Potential of the Anaerobic Digestion of Waste-Activated Sludge. Progress in Energy and Combustion Science, 34, 755-781. https://doi.org/10.1016/j.pecs.2008.06.002
Santosh, Y., Sreekrishnan, T.R., Kohli, S. and Rana, V. (2004) Enhancement of Biogas Production from Solid Substrates Using Different Techniques—A Review. Bioresource Technology, 95, 1-10. https://doi.org/10.1016/j.biortech.2004.02.010
Anhwange, B., Ugye, T. and Nyiaatagher, T. (2008) Chemical Composition of Musa sapientum (Banana) Peels. Journal of Food Technology, 6, 263-266.
Emaga, T. H., Andrianaivo, R.H., Wathelet, B., Tchango, J.T. and Paquot, M. (2007) Effects of the Stage of Maturation and Varieties on the Chemical Composition of Banana and Plantain Peels. Food Chemistry, 103, 590-600. https://doi.org/10.1016/j.foodchem.2006.09.006
Oboh, G. (2006) Nutrient Enrichment of Cassava Peels Using a Mixed Culture of Saccharomyces cerevisae and Lactobacillus spp Solid Media Fermentation Techniques. Electronic Journal of Biotechnology, 9.
Ofoefule, A. and Uzodinma, E. (2009) Biogas Production from Blends of Cassava (Manihot utilissima) Peels with Some Animal Wastes. International Journal of Physical Sciences, 4, 398-402.
Tumutegyereize, P., Muranga, F., Kawongolo, J. and Nabugoomu, F. (2011) Optimization of Biogas Production from Banana Peels: Effect of Particle Size on Methane Yield. African Journal of Biotechnology, 10, 18243-18251. https://doi.org/10.5897/AJB11.2442
Gunaseelan, V.N. (2004) Biochemical Methane Potential of Fruits and Vegetable Solid Waste Feedstocks. Biomass and Bioenergy, 26, 389-399. https://doi.org/10.1016/j.biombioe.2003.08.006
Khan, M.T., Brulé, M., Maurer, C., Argyropoulos, D., Müller, J. and Oechsner, H. (2016) Batch Anaerobic Digestion of Banana Waste-Energy Potential and Modelling of Methane Production Kinetics. Agricultural Engineering International: CIGR Journal, 18, 110-128.
Jekayinfa, S. and Scholz, V. (2013) Laboratory Scale Preparation of Biogas from Cassava Tubers, Cassava Peels, and Palm Kernel Oil Residues. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 35, 2022-2032. https://doi.org/10.1080/15567036.2010.532190
Bardiya, N., Somayaji, D. and Khanna, S. (1996) Biomethanation of Banana Peel and Pineapple Waste. Bioresource Technology, 58, 73-76. https://doi.org/10.1016/S0960-8524(96)00107-1
Panichnumsin, P., Nopharatana, A., Ahring, B. and Chaiprasert, P. (2010) Production of Methane by Co-Digestion of Cassava Pulp with Various Concentrations of Pig Manure. Biomass and Bioenergy, 34, 1117-1124. https://doi.org/10.1016/j.biombioe.2010.02.018
Li, Y., Zhang, R., Chen, C., Liu, G., He, Y. and 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, 406-412. https://doi.org/10.1016/j.biortech.2013.09.091
Lin, J., Zuo, J., Gan, L., Li, P., Liu, F., Wang, K., et al. (2011) Effects of Mixture Ratio on Anaerobic Co-Digestion with Fruit and Vegetable Waste and Food Waste of China. Journal of Environmental Sciences, 23, 1403-1408. https://doi.org/10.1016/S1001-0742(10)60572-4
Mata-Alvarez, J., Macé, S. and Llabrés, P. (2000) Anaerobic Digestion of Organic Solid Wastes. An Overview of Research Achievements and Perspectives. Bioresource Technology, 74, 3-16. https://doi.org/10.1016/S0960-8524(00)00023-7
Pang, Y., Liu, Y., Li, X., Wang, K. and Yuan, H. (2008) Improving Biodegradability and Biogas Production of Corn Stover through Sodium Hydroxide Solid State Pretreatment. Energy Fuels, 22, 2761-2766. https://doi.org/10.1021/ef800001n
Zhang, R., El-Mashad, H.M., Hartman, K., Wang, F., Liu, G., Choate, C., et al. (2007) Characterization of Food Waste as Feedstock for Anaerobic Digestion. Bioresource Technology, 98, 929-935. https://doi.org/10.1016/j.biortech.2006.02.039
Chae, K.J., Jang, A., Yim, S.K. and Kim, I.S. (2008) The Effects of Digestion Temperature and Temperature Shock on the Biogas Yields from the Mesophilic Anaerobic Digestion of Swine Manure. Bioresource Technology, 99, 1-6. https://doi.org/10.1016/j.biortech.2006.11.063
Datta, R. (1981) Acidogenic Fermentation of Corn Stover. Biotechnology and Bioengineering, 23, 61-77. https://doi.org/10.1002/bit.260230106