Potential Analysis of Agro-Municipal Residues as a Source of Renewable Energy

Frühauf, Susanne; Saylor, Molly K.; Lizasoain, Javier; Gronauer, Andreas; Bauer, Alexander

doi:10.1007/s12155-015-9608-z

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…Drawing attention to the transformative power of repurposing waste, food waste's methane yield is an impressive 59.0%, based on Li et al (2017) findings, while fruit/vegetable waste emerges as a frontrunner with a 63.4% yield, according to Qiao et al (2011). Methane concentrations from farm animals and agro-municipal wastes and residues hover around 60%, as Liu et al (2016) and Frühauf et al (2015) reported. The current study shows that pig farm slurry can contribute a robust methane concentration of 61.44%.…”

Section: Pig Slurry Composition and Assessing Biogas Production: A Sc...mentioning

confidence: 99%

Revolutionizing biogas generation: Polyethylene tubular digesters for household pig farms

Souvannasouk,

Oudtakhone Singthong,

Phoukhanh Sayavongsa

et al. 2023

Maejo Int. J. Energ. Environ. Comm. or MIJEEC

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Manure decomposition from animal waste, including farm sludge, is a significant source of methane (CH4) and carbon dioxide (CO2) emissions, aggravating global warming. Addressing this issue is vital for the environment and pivotal in achieving sustainable development goals by combating pollution from agricultural activities. One promising solution is biogas production, which offers threefold benefits including mitigation of global warming, assurance of energy security, and efficient waste management. This can be achieved by optimizing the process using substrates that yield high biogas output while ensuring low water usage and retention. This study focuses on pig farms' biogas potential of liquid and solid manure fractions performed with laboratory-scale batch digesters and enhanced polyethylene tubular digesters for evaluation. From the screening system, the biogas output from pig slurry resulted in CH4 and CO2 in 45 days, achieving 61.44 and 36.35%, respectively. After the initial screening experiment, polyethylene tubular digesters were implemented for biogas production at household pig farms and produced through fermentation in polyethylene tubular digesters under anaerobic conditions and are mainly composed of CH4 (60–64%) and CO2 (29–38%). This study suggested that the pig slurry could be a reliable biomass energy source for biogas and applicable to householders.

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Section: Pig Slurry Composition and Assessing Biogas Production: A Sc...mentioning

confidence: 99%

Revolutionizing biogas generation: Polyethylene tubular digesters for household pig farms

Souvannasouk,

Oudtakhone Singthong,

Phoukhanh Sayavongsa

et al. 2023

Maejo Int. J. Energ. Environ. Comm. or MIJEEC

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“…The CHP unit operates for 7470 h per year, combusting 240 Nm 3 biogas per hour with a 55% methane content at electrical and thermal efficiencies of 38% and 42%, respectively [2]. In the SQ scenario, 11.5% (or 37,123 kWh th a −1 ; [27]) of the CHP heat output is required on-site for fermenter heating [28] and at the regional waste treatment plant, by various heat-consuming processes. A further 8.5% (27,439 kWh th a −1 ) of the heat output is assumed to be dissipated as waste heat, and the remaining 80% (258,247 kWh th a −1 ) is assumed to be used off-site.…”

Section: System Expansion (Se) Approach and Energy Modelingmentioning

confidence: 99%

Life Cycle Assessment of Biogas Production from Unused Grassland Biomass Pretreated by Steam Explosion Using a System Expansion Method

Kral

Piringer

Saylor³

et al. 2020

Sustainability

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Reforestation is a threat to permanent grasslands in many alpine regions. Using these areas to produce biogas energy may help to preserve these important landscapes and save fossil fuels by adding a renewable local heat and electricity source. This case study compares (a) a status quo (SQ) reference scenario with heating oil, wood-chips, and grid electricity as municipal energy sources, and (b) a hypothetical local biogas (LB) scenario (to also be used as a municipal energy source) based on a 500-kWel biogas plant with steam explosion pretreatment. Here, hay from previously unused grassland is the main biogas substrate, whereas, in the reference SQ scenario, these grasslands remain unused. Life cycle assessment (LCA) results for LB and SQ scenarios are significantly different at p < 0.05 in all six impact categories. In three categories, the LB scenario has lower impacts than the SQ scenario, including climate change (0.367 CO2-eq kWhel-1 versus 0.501 CO2-eq kWhel-1). Dominant contributions to climate change in the SQ scenario are from the extant municipal energy sources that the LB biogas plant would replace; in the LB scenario, important contributions include unburned methane from the biogas plant, as well as CO2 emissions from hay production machines. In summary, important environmental impacts can be reduced and alpine grasslands can be preserved by biogas production from that grass. The advantages of integrating a local biogas plant in municipal energy and waste systems depend strongly on the extant municipal energy system characteristics.

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Waste Potential, Barriers and Economic Benefits of Implementing Different Models of Biogas Plants in a Few Indian Educational Institutions

Glivin¹,

Sekhar²

2019

Bioenerg. Res.

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Potential Analysis of Agro-Municipal Residues as a Source of Renewable Energy

Cited by 4 publications

References 15 publications

Revolutionizing biogas generation: Polyethylene tubular digesters for household pig farms

Revolutionizing biogas generation: Polyethylene tubular digesters for household pig farms

Life Cycle Assessment of Biogas Production from Unused Grassland Biomass Pretreated by Steam Explosion Using a System Expansion Method

Waste Potential, Barriers and Economic Benefits of Implementing Different Models of Biogas Plants in a Few Indian Educational Institutions

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