Co-digestion of water hyacinth, municipal solid waste and cow dung: A methane optimised biogas–liquid petroleum gas hybrid system

Kunatsa, Tawanda; Xia, Xiaohua

doi:10.1016/j.apenergy.2021.117716

Cited by 10 publications

(3 citation statements)

References 32 publications

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“…The use of animal manure for energy generation, and in particular as feedstock for anaerobic digestor technology, has received extensive coverage in both the research and review literature globally as well as in the sub-Saharan Africa (SSA) context. The vast majority of this research, however, is focussed on anaerobic digestor-process improvement [17], in particular on feedstock choices for increased biogas output [18][19][20], bioreactor design and diagnosis of bioreactor failures [21], impacts of private-public partnerships on biogas technology development [22], and socio-economic barriers to technology adoption [23,24]. In so doing, lab-scale successes and achievements are often misconstrued for on-the-ground implementation success whereas, in practicality, there is a disconnect between research and implementation [25].…”

Section: Introductionmentioning

confidence: 99%

Animal Manure as an Alternative Bioenergy Resource in Rural Sub-Saharan Africa: Present Insights, Challenges, and Prospects for Future Advancements

Sibanda,

Uzabakiriho

2024

Energies

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Energy availability is a pivotal driver in fostering sustainable socio-economic development. However, sub-Saharan Africa (SSA) grapples with paradoxes headlined by abundant energy resources but with the world’s lowest access to clean energy index per capita. Faced with a lack of access to clean energy sources like electricity, rural areas in the majority of SSA countries almost exclusively depend on biomass-fuels, mostly fuelwood, leading to heightened respiratory health risks as well as environmental degradation and accelerated climate change. As an alternative, this review investigates the potential of animal manure as a sustainable energy resource for rural SSA households, emphasising its utilisation as a feedstock for biogas production using anaerobic digestor technology. Results show that despite the abundance of literature that reports on successes in lab-scale bioreactor optimisation, as well as successes in the initial rollout of biogas biodigester technology in SSA with the help of international collaborators, the actual uptake of biogas bioreactor technology by rural communities remains low, while installed bioreactors are experiencing high failure rates. Resultantly, rural SSA still lags significantly behind in the adoption of sustainable clean energy systems in comparison to rural communities in other regions. Among some of the hurdles identified as driving low technology assimilation are onerous policy requirements, low-level government involvement, high bioreactor-instalment costs, the lack of training and awareness, and water scarcity. Prospects for success lie in innovative technologies like the low-cost portable FlexiBiogas system and private–public partnerships, as well as flexible energy policy frameworks. Bridging the knowledge-implementation gap requires a holistic approach considering cultural, technological, and policy aspects.

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Section: Introductionmentioning

confidence: 99%

Animal Manure as an Alternative Bioenergy Resource in Rural Sub-Saharan Africa: Present Insights, Challenges, and Prospects for Future Advancements

Sibanda,

Uzabakiriho

2024

Energies

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“…Reliance on fossil fuels as the primary energy is still prevalent in developing countries, and it is expensive and pollutes the environment [1]. One bright way to solve these challenges is to engage in biofuel production, a form of renewable and sustainable energy source.…”

Section: Introductionmentioning

confidence: 99%

Enhancing methane yield from duck waste by co-digestion with Xyris capensis

Madyira,

Olatunji

2023

E3S Web Conf.

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This study examined the possibilities of enhancing methane yield from anaerobic digestion of Xyris capensis and duck wastes based on improved feeding composition and the C/N ratio. Batch anaerobic digestion of Xyris capensis and duck wastes was conducted at mesophilic temperature (37 ± 2 °C) with the mixing ratios of 100:0, 75:25, 50:50, 25:75, and 0:100% of duck wastes: Xyris capensis. The highest methane yield of 301.17 mL CH4/ gVSadded was recorded when the mixing ratio of 50:50% (duck wastes: Xyris capensis) and C/N ratio of 19.26 was digested. The biodegradability (BD) of duck wastes and Xyris capensis were 86.60 and 58.57%, respectively. The BD of duck wastes increases with the addition of Xyris capensis, and it started to decline after a 50:50% mixing ratio. A stronger synergistic influence of co-digestion was noticed compared to monodigestion of the individual of each feedstock. This study showed a better performance of anaerobic co-digestion and can be used to enhance feeding composition and the C/N ratio. In general, methane production from duck wastes co-digested with Xyris capensis is a good strategy to generate renewable energy and minimize waste management challenges.

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“…Cow dung is a substrate that is considered the most suitable source of bio-gas production because the substrate already contains methane-producing bacteria found in the stomachs of ruminant animals (Iweka et al, 2021). The process of making biogas is by mixing dirt with water and then fermenting it (Kunatsa & Xia, 2021;Lahbab et al, 2021). The by-product of biogas in the form of mud or better known as sludge contains many nutrients that can be used as fertilizer for plants (Sharma & Suthar, 2021).…”

Section: Introductionmentioning

confidence: 99%

Analysis of the difference in biogas volume between continuous and semi-continuous systems

Afisna¹,

Rahadi²

2022

JEREL

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The increasing demand for energy due to population growth and reduced sources of oil reserves puts pressure on every country to immediately produce and use renewable energy as a substitute, one of the alternative energy sources is biogas. The bacteria used in making this biogas is EM4, researchers used these bacteria because they can balance microorganisms. Microorganism inoculants consisting of 90% Lactobacillus produce cow dung are accommodated in a container made of HDPE plastic. The dimensions of the reservoir are 1 m3. Data collection was carried out starting from the first day to the fourteenth day. Retrieval of pressure data using a pressure gauge, temperature data retrieval using a thermometer gun and measuring the volume of biogas using an Arduino-based flow meter. From this study, it was found that biogas storage using HDPE polymer material with a size of 1x1 meters can accommodate a maximum biogas volume of 208.12 litres. In the non-continuous system, the volume of biogas produced is not stable with the total volume of biogas before going through the filter for 14 days is 1075.12 litres with an average volume of 76.79 litres/day while the total volume of biogas that has been through the filter for 14 days is 995.71 litres with an average volume of 71.12 litres/day.

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Co-digestion of water hyacinth, municipal solid waste and cow dung: A methane optimised biogas–liquid petroleum gas hybrid system

Cited by 10 publications

References 32 publications

Animal Manure as an Alternative Bioenergy Resource in Rural Sub-Saharan Africa: Present Insights, Challenges, and Prospects for Future Advancements

Animal Manure as an Alternative Bioenergy Resource in Rural Sub-Saharan Africa: Present Insights, Challenges, and Prospects for Future Advancements

Enhancing methane yield from duck waste by co-digestion with Xyris capensis

Analysis of the difference in biogas volume between continuous and semi-continuous systems

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