Estimation of biomass feedstock availability for anaerobic digestion in smallholder farming systems in South Africa

Tolessa, Amsalu; Zantsi, Siphe; Louw, Tobias M.; Greyling, Jan C.; Goosen, Neill J.

doi:10.1016/j.biombioe.2020.105798

Cited by 17 publications

(14 citation statements)

References 38 publications

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“…However, Bond and Templeton [45] stated that the production of biogas to provide a five-member family with two cooked meals a day is about 1.5-2.4 Nm 3 biogas in developing countries. Similarly, Tolessa et al [17] reported 0.5 Nm 3 per day per person of biogas for cooking and 1.25 Nm 3 per day per person of biogas for complete replacement of traditional fuels for low-income South African households. Based on these reports, biogas generation to meet the energy demands for cooking with biogas is approximately 0.8-2.5 Nm 3 biogas (0.44-1.5 Nm 3 methane) per day per average household in developing countries.…”

Section: Discussionmentioning

confidence: 95%

“…From agricultural production in smallholder farming systems, the energy potential of the available residue resources was estimated according to the steps illustrated in Fig. 2 [17].…”

Section: Availability Of Agricultural Residue Biomass Resources For Admentioning

confidence: 99%

“…( 3). The values of the specific methane yield and the mean total solids concentration for the crop residues were obtained from literature as given in Table 2 [17].…”

Section: Methane and Energy Potential Estimation From Crop Residuementioning

confidence: 99%

“…To estimate the quantity of biomethane that can be generated by each animal category, parameter values are derived from similar studies carried out in Ghana and Tanzania [2,38], as described in Table 3. Equation ( 5) can be used to estimate the potential of biomethane from animal manure that can be generated from recoverable manures [17]:…”

Section: Methane Potential Estimation From Animal Manurementioning

confidence: 99%

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Assessment of Agricultural Biomass Residues for Anaerobic Digestion in Rural Vakinankaratra Region of Madagascar

et al. 2021

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This study estimates agricultural residue biomass available for biogas generation in smallholder farming systems in the rural Vakinankaratra region of Madagascar, during 2017-2018. Estimations of biomass were done using a combination of agricultural household surveys, literature models, and publicly available data. Manure from four types of farm animals and 17 residue types from ten crops were assessed. In the studied period, gross biomass produced from animal manure and crop residue were 19.4 ± 7.41 and 7.3 ± 1.08 tonnes fresh weight per year per agricultural household, respectively, of which up to 54% and 83% are estimated as recoverable for the production of bioenergy in the studied area, respectively. Estimations indicate that available animal manure and crop residue have the potential to generate 291 ± 92 and 745 ± 122 Nm 3 of methane per year per agricultural household respectively, equivalent to 10.5 ± 3.34 and 26.8 ± 4.28 GJ of heat energy from manure and residues, respectively. Theoretically, the average estimated energy potential can result in the complete substitution of domestic fuels in agricultural households. Approximately 0.12 tonnes of nitrogen per household per year can be recovered from the estimated digestate (using all residue types) after energy recovery, which can be employed for crop fertilization. The recovered nitrogen corresponds to 0.26 tonnes urea fertilizer per household per year. The investigation shows that anaerobic digestion based on crop residue and manure has the potential to meet a significant portion of energy needs of smallholder farmers in the Vakinankaratra region of Madagascar and can make an important contribution to providing fertilizer for on-farm use.

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Section: Discussionmentioning

confidence: 95%

“…From agricultural production in smallholder farming systems, the energy potential of the available residue resources was estimated according to the steps illustrated in Fig. 2 [17].…”

Section: Availability Of Agricultural Residue Biomass Resources For Admentioning

confidence: 99%

“…( 3). The values of the specific methane yield and the mean total solids concentration for the crop residues were obtained from literature as given in Table 2 [17].…”

Section: Methane and Energy Potential Estimation From Crop Residuementioning

confidence: 99%

Section: Methane Potential Estimation From Animal Manurementioning

confidence: 99%

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Assessment of Agricultural Biomass Residues for Anaerobic Digestion in Rural Vakinankaratra Region of Madagascar

et al. 2021

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“…Biomass resources generated during agricultural production (crop residue after harvesting of main crops) are good bioenergy sources and can significantly contribute to bioenergy production [ 11 ]. Several studies on the potential of biomass resources have been conducted in various countries worldwide [ [12] , [13] , [14] , [15] , [16] , [17] ]. For the generation of gaseous and liquid transportation fuel, electricity, heat, etc, modern biomass utilization benefit from modern biomass conversion technologies (such as anaerobic digestion, fermentation, combustion, gasification, and pyrolysis) [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Bioenergy potential from crop residue biomass resources in Ethiopia

Tolessa¹

2023

Heliyon

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Feasibility assessment and prioritization of renewable energy resources: towards a energy transition for the society and the environment—a case study approach

Percy,

Edwin

2023

Environ Dev Sustain

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Estimation of biomass feedstock availability for anaerobic digestion in smallholder farming systems in South Africa

Cited by 17 publications

References 38 publications

Assessment of Agricultural Biomass Residues for Anaerobic Digestion in Rural Vakinankaratra Region of Madagascar

Assessment of Agricultural Biomass Residues for Anaerobic Digestion in Rural Vakinankaratra Region of Madagascar

Bioenergy potential from crop residue biomass resources in Ethiopia

Feasibility assessment and prioritization of renewable energy resources: towards a energy transition for the society and the environment—a case study approach

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