Agricultural Plant Residues as Potential Co-Substrates for Biogas Production

Frankowski, Jakub; Czekała, Wojciech

doi:10.3390/en16114396

Cited by 6 publications

(3 citation statements)

References 58 publications

(79 reference statements)

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“…Another solution that brings measurable profits is the construction of a local biogas plant with a capacity of 250-500 kW and use of other waste streams [76,[120][121][122][123]. In the analyzed case, it would be an installation intended for a dozen local farmers (up to 10 km from the installation) and waste streams other than manure.…”

Section: Discussionmentioning

confidence: 99%

Loss of Energy and Economic Potential of a Biogas Plant Fed with Cow Manure due to Storage Time

Mazurkiewicz

2023

Energies

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The aim of the publication was to analyze investments in biogas plants with a cogeneration unit for an average size dairy farm. The basis for the calculation was the use of cow manure as the only substrate in methane fermentation. The economic balance also includes ecological and service aspects. The study also shows how much energy and quality potential is lost due to improper manure management and what impact a single farm with dairy cows has on the emission of carbon dioxide equivalent. It has been estimated that as a result of improper storage of manure, even 2/3 of its fertilizing, energy and economic value can be lost, while causing damage to the environment. It has been estimated that for a single farm with 100 cows, without government mechanisms subsidizing investments in RES, the payback period exceeds 15 years, and the Return of Capital Employed is slightly more than 6%.

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Section: Discussionmentioning

confidence: 99%

Loss of Energy and Economic Potential of a Biogas Plant Fed with Cow Manure due to Storage Time

Mazurkiewicz

2023

Energies

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“…The fast breakdown of tomato waste through hydrolysis promotes the generation of a methane precursor known as volatile fatty acid, resulting in an enhanced output of biogas. In addition, the tomato waste has a significant amount of carbon, a high ratio of volatile solids, and a high carbon-to-nitrogen (C/N) ratio [55]. These factors contribute to its elevated biochemical methane potential (BMP) and calorific energy value (CEV).…”

Section: Biogas Composition Of Various Substratesmentioning

confidence: 99%

Investigating Methane, Carbon Dioxide, Ammonia, and Hydrogen Sulphide Content in Agricultural Waste during Biogas Production

Sihlangu,

Luseba,

Regnier

et al. 2024

Sustainability

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The agricultural industry produces a substantial quantity of organic waste, and finding a suitable method for disposing of this highly biodegradable solid waste is a difficult task. The utilisation of anaerobic digestion for agricultural waste is a viable technological solution for both renewable energy production (biogas) and waste treatment. The primary objective of the study was to assess the composition of biogas, namely the percentages of methane, carbon dioxide, ammonia, and hydrogen sulphide. Additionally, the study aimed to quantify the amount of biogas produced and determine the methane yield (measured in NmL/g VS) from different agricultural substrates. The biochemical methane potential (BMP) measurements were conducted in triplicate using the BPC Instruments AMPTS II instrument. The substrates utilised in the investigation were chosen based on their accessibility. The substrates used in this study comprise cattle manure, chicken manure, pig manure, tomato plants, tomatoes, cabbage, mixed fruits, mixed vegetables, dog food, and a co-digestion of mixed vegetables, fruits, and dog food (MVMFDF). Prior to the cleaning process, the makeup of the biogas was assessed using the BIOGAS 5000, a Geotech Analyser. The AMPTS II flow cell automatically monitored and recorded the volume of bio-methane produced after the cleaning stage. The data were examined using the Minitab-17 software. The co-digestion of mixed vegetables, mixed fruits, and dog food (MVMFDF) resulted in the highest methane level of 77.4%, followed by mixed fruits at 76.6%, pig manure at 72.57%, and mixed vegetables at 70.1%. The chicken manure exhibited the greatest levels of ammonia (98.0 ppm) and hydrogen sulphide (589 ppm). Chicken manure had the highest hydrogen sulphide level, followed by pig manure (540 ppm), tomato plants (485 ppm), mixed fruits (250 ppm), and MVMFDF (208 ppm). Ultimately, the makeup of biogas is greatly affected by the unique qualities of each substrate. Substrates containing elevated quantities of hydrogen sulphide, such as chicken manure, require the process of biogas scrubbing. This is because they contain substantial amounts of ammonia and hydrogen sulphide, which can cause corrosion to the equipment in biogas plants. This emphasises the crucial need to meticulously choose substrates, with a specific focus on their organic composition and their capacity to generate elevated methane levels while minimising contaminants. Substrates with a high organic content, such as agricultural waste, are optimal for maximising the production of methane. Furthermore, the implementation of biogas scrubbing procedures is essential for efficiently decreasing carbon dioxide and hydrogen sulphide levels in biogas. By considering and tackling these problems, the effectiveness of biogas generation can be enhanced and its ecological consequences alleviated. This strategy facilitates the advancement of biogas as a sustainable energy source, hence contributing to the attainment of sustainable development goals (SDGs).

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“…Most organic waste can be used effectively equally as a collection of high added-value bio-fertilizers, bio-chemicals and material building blocks after biomass processing, and also as an energy carrier-a fuel [1][2][3]. The latter option is recently considered one of the best organic waste treatment technologies to recover both valuable fertilizing substances and energy from organic waste [4][5][6][7], especially with regard to agricultural waste, the biogas produced from them, and, less often, liquid biofuels. These constitute a new approach that should be considered in the context of sustainable development [4,8].…”

Section: Introductionmentioning

confidence: 99%

The Impact of Manure Use for Energy Purposes on the Economic Balance of a Dairy Farm

Mazurkiewicz

2023

Energies

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The use of methane fermentation in mesophilic conditions for the energy use of cow manure and additional co-substrates from the farm can bring a small dairy farm (140 dairy cows) financial benefits of up to EUR 114,159 per year. Taking into account the need to pay for emissions calculated as carbon dioxide equivalent, this profit could be reduced to EUR 81,323 per year. With the traditional direct use of manure, this profit would drop by as much as 60% to the level of EUR 33,944 per year. Therefore, the introduction of fees for emissions may significantly burden current dairy farms. As has already been shown, just compacting and covering the manure (which costs approx. EUR 2000 per year for 140 cows) would give almost twice as much profit—EUR 64,509 per year. Although an investment in a small biogas plant with a cogeneration unit on a family dairy farm may have a payback period of less than 6.5 years and a return of capital employed of 16%, most small farms in the world will not be able to afford its construction without external subsidies. At the same time, it would make it possible to reduce emissions by almost 270 times—from 41,460 to 154 tons of CO2eq per year—and the possibility of preserving valuable nutrients and minerals and supporting soil properties in the digestate. Therefore, it seems necessary for Europe to introduce a support system for small- and medium-sized farms with this type of investment in the near future in a much larger form than it has been so far.

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Agricultural Plant Residues as Potential Co-Substrates for Biogas Production

Cited by 6 publications

References 58 publications

Loss of Energy and Economic Potential of a Biogas Plant Fed with Cow Manure due to Storage Time

Loss of Energy and Economic Potential of a Biogas Plant Fed with Cow Manure due to Storage Time

Investigating Methane, Carbon Dioxide, Ammonia, and Hydrogen Sulphide Content in Agricultural Waste during Biogas Production

The Impact of Manure Use for Energy Purposes on the Economic Balance of a Dairy Farm

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