Agricultural Waste for Energy Storage, Conversion and Agricultural Applications

Yilikal Melak Assaye

doi:doi:10.11648/j.ajme.20241003.11

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Agricultural Waste for Energy Storage, Conversion and Agricultural Applications

Yilikal Melak Assaye^*

Published in American Journal of Modern Energy (Volume 10, Issue 3)

Received: 27 August 2024 Accepted: 25 September 2024 Published: 18 October 2024

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Abstract

Agricultural waste residues (agro-waste) present a significant source of carbohydrates that are often underutilized despite their valuable properties. With increasing urbanization and limited non-renewable resources, the valorization of agro-waste is imperative. The global energy demand is on the rise, driven by factors such as population growth, industrialization, and a desire for enhanced living standards. Traditional energy sources, especially fossil fuels, have come under scrutiny for their environmental impact and limited availability. Consequently, there is an increasing focus on developing renewable and sustainable energy solutions, particularly through the use of agricultural waste. Agricultural waste—including crop residues, animal manure, and byproducts from food processing—represents a largely untapped resource for energy production. Converting this waste into valuable energy can help meet rising energy needs while offering environmental and economic advantages, such as mitigating waste disposal issues and creating additional income sources for the agricultural sector. Despite the significant potential of agricultural waste for energy storage and conversion, several challenges remain. These include issues related to logistics and transportation, the need for pretreatment, and concerns about economic feasibility. Future research should aim to enhance conversion technologies and better integrate agricultural waste into energy and agricultural systems. This review discusses various energy conversion technologies and applications of agricultural waste, including biofuels, biogas, and direct combustion, while exploring its role in energy storage through biochar. This review examines the composition and properties of agricultural waste, the various technologies available for energy conversion, and how agricultural waste can be utilized as a feedstock for biofuels, biogas, and direct combustion. It also investigates the integration of agricultural waste in energy storage solutions like biochar and explores other agricultural applications beyond energy production.

Published in	American Journal of Modern Energy (Volume 10, Issue 3)
DOI	10.11648/j.ajme.20241003.11
Page(s)	38-41
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Renewable Energy, Biofuel, Biogas, Biomass, Energy Conversion, Energy Storage, Sustainability, Agricultural Waste

1. Introduction

Agricultural waste residues (agro-waste) are a significant source of carbohydrates that remain largely underutilized despite their valuable characteristics

[10]

. As urbanization increases and non-renewable resources become scarcer, it is essential to explore the potential of agro-waste

[14]

. The global demand for energy is escalating due to factors such as population growth, industrialization, and a pursuit of better living standards

[13]

. Traditional energy sources, particularly fossil fuels, have faced criticism for their environmental consequences and limited supply

[7]

. This situation has prompted a heightened emphasis on renewable and sustainable energy solutions, notably through the utilization of agricultural waste

[22]

Agricultural waste—which encompasses crop residues, animal manure, and byproducts from food processing—represents a largely untapped resource for energy generation

[9]

. Transforming this waste into valuable energy can address rising energy demands while providing environmental and economic benefits, including reduced waste disposal challenges and new revenue opportunities for the agricultural sector

[2]

. However, despite its considerable potential for energy storage and conversion, several challenges must be addressed, including logistical issues, pretreatment needs, and economic viability

[17]

. Future research should focus on optimizing conversion technologies and improving the integration of agricultural waste into energy and agricultural systems

[16]

2. Methodology

This review examines the potential of agricultural waste as a sustainable energy source through a comprehensive analysis of existing literature and research studies. The methodology includes the following key components:

2.1. Literature Review

A systematic review of peer-reviewed articles, government reports, and industry publications was conducted to gather information on the composition and characteristics of agricultural waste. Databases such as Google Scholar, ScienceDirect, and Wiley Online Library were utilized to identify relevant studies published in the last two decades

[22]

2.2. Energy Conversion Technologies

The review categorizes and evaluates various energy conversion technologies applicable to agricultural waste. Key technologies explored include:

1. Anaerobic Digestion: Analyzing the efficiency and byproduct generation in converting organic waste into biogas

[9]

2. Pyrolysis and Gasification: Reviewing methodologies for producing biochar, bio-oil, and syngas from agricultural residues

[2]

3. Direct Combustion: Assessing the viability of combusting agricultural waste for heat and electricity generation

[11]

2.3. Data Analysis

Data on energy yields, conversion efficiencies, and environmental impacts were extracted from the identified studies. A comparative analysis was conducted to evaluate the advantages and limitations of each conversion technology.

2.4. Case Studies

Selected case studies from different regions were analyzed to illustrate practical applications of agricultural waste conversion into energy. These case studies provide insights into real-world challenges and solutions in the field.

2.5. Integration with Energy Storage

The role of biochar as an energy storage solution was examined, focusing on its production processes and benefits for soil health and carbon sequestration

[16]

2.6. Challenges and Future Directions

The review identifies current challenges in the utilization of agricultural waste for energy, including logistical issues, pretreatment requirements, and economic feasibility. Recommendations for future research and technological advancements were formulated based on the findings.

This methodology aims to provide a holistic understanding of the potential of agricultural waste in energy production and storage, highlighting both the opportunities and challenges in this emerging field.

3. Comparative Performance and Implementation

The performance of energy conversion technologies for agricultural waste varies based on several factors, including feedstock characteristics, process efficiency, and end-use applications. This section compares the main technologies—anaerobic digestion, pyrolysis, gasification, and direct combustion—highlighting their advantages, limitations, and considerations for implementation.

3.1. Anaerobic Digestion

1. Performance: Anaerobic digestion effectively converts organic matter into biogas, primarily methane, which can be utilized for electricity generation or as a vehicle fuel. The process typically achieves a biogas yield of 60-70% of the theoretical maximum

[9]

2. Implementation: Key considerations for implementation include the need for a controlled environment (temperature and pH), substrate pretreatment, and the management of digestate, which can be used as a nutrient-rich fertilizer. Challenges include high capital costs and the necessity for consistent feedstock supply

[10]

3.2. Pyrolysis

1. Performance: Pyrolysis converts agricultural waste into biochar, bio-oil, and syngas through thermal decomposition in the absence of oxygen. The yield of biochar can range from 20-50% depending on feedstock type and pyrolysis conditions (Basu, 2018)

[2]

2. Implementation: Implementing pyrolysis systems requires careful design to optimize production conditions and ensure efficient heat management. Biochar produced can enhance soil fertility and sequester carbon, but market development for biochar use is still evolving

[16]

3.3. Gasification

1) Performance: Gasification transforms biomass into syngas, which can be further processed into fuels or chemicals. The efficiency of gasification is generally higher than that of combustion, with conversion efficiencies often exceeding 75%

[11]

2) Implementation: Successful gasification requires precise control of feedstock moisture content and particle size. Systems must be designed to handle tar and other byproducts, which can complicate maintenance and operational costs.

3.4. Direct Combustion

1. Performance: Direct combustion is the simplest method of energy conversion, where agricultural waste is burned to produce heat or electricity. While it has lower conversion efficiencies (around 20-25%), it is widely used due to its straightforward implementation

[7]

2. Implementation: Direct combustion systems are relatively easy to establish, but emissions control is crucial to minimize environmental impacts. Efficient air supply and ash management are essential for optimizing performance.

4. Comparative Analysis

The choice of technology for converting agricultural waste into energy should consider the specific context, including local waste availability, economic factors, and environmental regulations.

1. Economic Viability: Anaerobic digestion and gasification generally require higher initial investments compared to direct combustion, but they can offer greater long-term benefits through energy generation and byproduct utilization.

2. Environmental Impact: Technologies like pyrolysis and anaerobic digestion can provide significant environmental benefits by reducing greenhouse gas emissions and improving soil health through the use of byproducts.

3. Feedstock Flexibility: Gasification and pyrolysis can process a wide variety of feedstocks, while anaerobic digestion is typically more suited to wet, organic materials.

5. Conclusion

The utilization of agricultural waste as a renewable energy source presents a significant opportunity to address the growing global energy demand while promoting environmental sustainability. This review highlights the diverse types of agricultural waste and their potential for conversion into valuable energy resources through various technologies, including anaerobic digestion, pyrolysis, gasification, and direct combustion. Each conversion technology offers unique benefits and challenges. Anaerobic digestion stands out for its ability to produce biogas and nutrient-rich digestate, while pyrolysis and gasification provide pathways for creating biochar and syngas, respectively. Direct combustion, though simpler, remains a practical option for immediate energy needs. The choice of technology should consider local conditions, economic feasibility, and environmental impacts to ensure the most effective implementation. Despite the promising potential of agricultural waste for energy production, several challenges must be addressed, including logistical issues, the need for pretreatment, and market development for byproducts. Future research should focus on optimizing conversion processes, improving the economic viability of technologies, and enhancing the integration of agricultural waste into broader energy and agricultural systems. By leveraging agricultural waste effectively, we can contribute to a more sustainable energy future, reduce waste disposal challenges, and create new revenue streams for the agricultural sector. The path forward requires collaborative efforts among researchers, policymakers, and industry stakeholders to realize the full potential of agricultural waste as a cornerstone of renewable energy solutions.

Abbreviations

Not applicable.

Author Contributions

Yilikal Melak Assaye is the sole author. The author read and approved the final manuscript.

Conflicts of Interest

The author declares no conflicts of interest.

References

[1]	Basu, P. (2013). Biomass gasification, pyrolysis and torrefaction: practical design and theory. Academic Press.
[2]	Basu, P. (2018). Biomass gasification, pyrolysis and torrefaction: Practical design and theory. Academic Press.
[3]	Dabney, S. M., Delgado, J. A., & Reeves, D. W. (2001). Using winter cover crops to improve soil and water quality. Communications in Soil Science and Plant Analysis, 32(7-8), 1221-1250.
[4]	Deng, J., Wang, G., Kuang, J., Zhang, Y., & Luo, Y. (2009). Pretreatment of agricultural residues for co-gasification via torrefaction. Journal of Analytical and Applied Pyrolysis, 86(2), 331-337.
[5]	Dinesh, R., Srinivasan, V., Hamza, S., & Manjusha, A. (2012). Short-term incorporation of organic manures and biofertilizers influences biochemical and microbial characteristics of soils. Bioresource Technology, 107, 69-77.
[6]	Gupta, N., Mahur, B. K., Izrayeel, A. M. D., et al. (2022). Biomass conversion of agricultural waste residues for different applications: a comprehensive review. Environmental Science and Pollution Research, 29, 73622–73647. https://doi.org/10.1007/s11356-022-22802-6
[7]	Hasunuma, T., & Kondo, A. (2012). Consolidated bioprocessing of lignocellulose to ethanol. Process Biochemistry, 47(9), 1287-1294.
[8]	Holm-Nielsen, J. B., Al Seadi, T., & Oleskowicz-Popiel, P. (2009). The future of anaerobic digestion and biogas utilization. Bioresource Technology, 100(22), 5478-5484.
[9]	Jeffery, S., Verheijen, F. G., van der Velde, M., & Bastos, A. C. (2011). A quantitative review of the effects of biochar application to soils. Agriculture, Ecosystems & Environment, 144(1), 175-187.
[10]	Jiang, Y., Heaven, S., & Banks, C. J. (2021). Strategies for stable anaerobic digestion of vegetable waste. Renewable Energy, 163, 1328-1337.
[11]	Khalid, A., Arshad, M., Anjum, M., Mahmood, T., & Dawson, L. (2017). The anaerobic digestion of solid organic waste. Waste Management, 29(6), 1822-1835.
[12]	Khan, H. M., Siddique, M., Wahid, Z. A., Ahmad, A., & Khan, N. (2022). Combustion of agricultural waste biomass: A review. Fuel, 307, 121844.
[13]	Korres, N. E., O'Kiely, P., Benzie, J. A., & West, J. S. (2013). Bioenergy production by anaerobic digestion. Routledge.
[14]	Lam, S. S., Liew, R. K., Jusoh, A., Chong, C. T., Ani, F. N., & Chase, H. A. (2016). Progress in waste oil to sustainable energy. Renewable and Sustainable Energy Reviews, 53, 778-789.
[15]	Pathak, H., Jain, N., Bhatia, A., Patel, J., & Aggarwal, P. K. (2010). Carbon footprints of Indian food items. Agriculture, Ecosystems & Environment, 139(1-2), 66-73.
[16]	Pathania, D., Sharma, S., & Kothiyal, N. C. (2017). Polymeric hydrogels as nanosorbents for environmental applications. Environmental Chemistry Letters, 15(1), 623-649.
[17]	Rajapaksha, A. U., Alam, M. A., Chen, N., & Ok, Y. S. (2016). Engineered biochar for contaminant removal. Chemosphere, 148, 276-291.
[18]	Saha, B. C., Qureshi, N., Vermerris, W., & Cotta, M. A. (2020). Advancing consolidated bioprocessing of lignocellulosic biomass. Renewable and Sustainable Energy Reviews, 117, 109487.
[19]	Sarnklong, C., Coneja, J. W., Pellikaan, W., & Hendriks, W. H. (2010). Utilization of rice straw for ruminants: A review. Asian-Australasian Journal of Animal Sciences, 23(5), 680-692.
[20]	Slade, R., Bauen, A., & Shah, N. (2009). The greenhouse gas emissions performance of cellulosic ethanol supply chains. Biotechnology for Biofuels, 2(1), 1-19.
[21]	Surendra, K. C., Takara, D., Hashimoto, A. G., & Khanal, S. K. (2014). Biogas as a sustainable energy source. Renewable and Sustainable Energy Reviews, 31, 846-859.
[22]	Zhang, L., & Zhao, Y. H. (2009). Carbon-based materials as supercapacitor electrodes. Chemistry Society Reviews, 38(9), 2520-2531.

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APA Style

Assaye, Y. M. (2024). Agricultural Waste for Energy Storage, Conversion and Agricultural Applications. American Journal of Modern Energy, 10(3), 38-41. https://doi.org/10.11648/j.ajme.20241003.11

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ACS Style

Assaye, Y. M. Agricultural Waste for Energy Storage, Conversion and Agricultural Applications. Am. J. Mod. Energy 2024, 10(3), 38-41. doi: 10.11648/j.ajme.20241003.11

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AMA Style

Assaye YM. Agricultural Waste for Energy Storage, Conversion and Agricultural Applications. Am J Mod Energy. 2024;10(3):38-41. doi: 10.11648/j.ajme.20241003.11

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@article{10.11648/j.ajme.20241003.11,
author = {Yilikal Melak Assaye},
title = {Agricultural Waste for Energy Storage, Conversion and Agricultural Applications
},
journal = {American Journal of Modern Energy},
volume = {10},
number = {3},
pages = {38-41},
doi = {10.11648/j.ajme.20241003.11},
url = {https://doi.org/10.11648/j.ajme.20241003.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajme.20241003.11},
abstract = {Agricultural waste residues (agro-waste) present a significant source of carbohydrates that are often underutilized despite their valuable properties. With increasing urbanization and limited non-renewable resources, the valorization of agro-waste is imperative. The global energy demand is on the rise, driven by factors such as population growth, industrialization, and a desire for enhanced living standards. Traditional energy sources, especially fossil fuels, have come under scrutiny for their environmental impact and limited availability. Consequently, there is an increasing focus on developing renewable and sustainable energy solutions, particularly through the use of agricultural waste. Agricultural waste—including crop residues, animal manure, and byproducts from food processing—represents a largely untapped resource for energy production. Converting this waste into valuable energy can help meet rising energy needs while offering environmental and economic advantages, such as mitigating waste disposal issues and creating additional income sources for the agricultural sector. Despite the significant potential of agricultural waste for energy storage and conversion, several challenges remain. These include issues related to logistics and transportation, the need for pretreatment, and concerns about economic feasibility. Future research should aim to enhance conversion technologies and better integrate agricultural waste into energy and agricultural systems. This review discusses various energy conversion technologies and applications of agricultural waste, including biofuels, biogas, and direct combustion, while exploring its role in energy storage through biochar. This review examines the composition and properties of agricultural waste, the various technologies available for energy conversion, and how agricultural waste can be utilized as a feedstock for biofuels, biogas, and direct combustion. It also investigates the integration of agricultural waste in energy storage solutions like biochar and explores other agricultural applications beyond energy production.
},
year = {2024}
}

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TY  - JOUR
T1  - Agricultural Waste for Energy Storage, Conversion and Agricultural Applications

AU  - Yilikal Melak Assaye
Y1  - 2024/10/18
PY  - 2024
N1  - https://doi.org/10.11648/j.ajme.20241003.11
DO  - 10.11648/j.ajme.20241003.11
T2  - American Journal of Modern Energy
JF  - American Journal of Modern Energy
JO  - American Journal of Modern Energy
SP  - 38
EP  - 41
PB  - Science Publishing Group
SN  - 2575-3797
UR  - https://doi.org/10.11648/j.ajme.20241003.11
AB  - Agricultural waste residues (agro-waste) present a significant source of carbohydrates that are often underutilized despite their valuable properties. With increasing urbanization and limited non-renewable resources, the valorization of agro-waste is imperative. The global energy demand is on the rise, driven by factors such as population growth, industrialization, and a desire for enhanced living standards. Traditional energy sources, especially fossil fuels, have come under scrutiny for their environmental impact and limited availability. Consequently, there is an increasing focus on developing renewable and sustainable energy solutions, particularly through the use of agricultural waste. Agricultural waste—including crop residues, animal manure, and byproducts from food processing—represents a largely untapped resource for energy production. Converting this waste into valuable energy can help meet rising energy needs while offering environmental and economic advantages, such as mitigating waste disposal issues and creating additional income sources for the agricultural sector. Despite the significant potential of agricultural waste for energy storage and conversion, several challenges remain. These include issues related to logistics and transportation, the need for pretreatment, and concerns about economic feasibility. Future research should aim to enhance conversion technologies and better integrate agricultural waste into energy and agricultural systems. This review discusses various energy conversion technologies and applications of agricultural waste, including biofuels, biogas, and direct combustion, while exploring its role in energy storage through biochar. This review examines the composition and properties of agricultural waste, the various technologies available for energy conversion, and how agricultural waste can be utilized as a feedstock for biofuels, biogas, and direct combustion. It also investigates the integration of agricultural waste in energy storage solutions like biochar and explores other agricultural applications beyond energy production.

VL  - 10
IS  - 3
ER  -

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Author Information

Yilikal Melak Assaye

Ethiopian Institute of Agricultural Research, Fogera National Rice Research and Training Center, Woreta, Ethiopia

Contact Email

http://orcid.org/0000-0001-8982-5428

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APA Style

Assaye, Y. M. (2024). Agricultural Waste for Energy Storage, Conversion and Agricultural Applications. American Journal of Modern Energy, 10(3), 38-41. https://doi.org/10.11648/j.ajme.20241003.11

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ACS Style

Assaye, Y. M. Agricultural Waste for Energy Storage, Conversion and Agricultural Applications. Am. J. Mod. Energy 2024, 10(3), 38-41. doi: 10.11648/j.ajme.20241003.11

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AMA Style

Assaye YM. Agricultural Waste for Energy Storage, Conversion and Agricultural Applications. Am J Mod Energy. 2024;10(3):38-41. doi: 10.11648/j.ajme.20241003.11

Copy | Download

Copy | Download

TY  - JOUR
T1  - Agricultural Waste for Energy Storage, Conversion and Agricultural Applications

AU  - Yilikal Melak Assaye
Y1  - 2024/10/18
PY  - 2024
N1  - https://doi.org/10.11648/j.ajme.20241003.11
DO  - 10.11648/j.ajme.20241003.11
T2  - American Journal of Modern Energy
JF  - American Journal of Modern Energy
JO  - American Journal of Modern Energy
SP  - 38
EP  - 41
PB  - Science Publishing Group
SN  - 2575-3797
UR  - https://doi.org/10.11648/j.ajme.20241003.11
AB  - Agricultural waste residues (agro-waste) present a significant source of carbohydrates that are often underutilized despite their valuable properties. With increasing urbanization and limited non-renewable resources, the valorization of agro-waste is imperative. The global energy demand is on the rise, driven by factors such as population growth, industrialization, and a desire for enhanced living standards. Traditional energy sources, especially fossil fuels, have come under scrutiny for their environmental impact and limited availability. Consequently, there is an increasing focus on developing renewable and sustainable energy solutions, particularly through the use of agricultural waste. Agricultural waste—including crop residues, animal manure, and byproducts from food processing—represents a largely untapped resource for energy production. Converting this waste into valuable energy can help meet rising energy needs while offering environmental and economic advantages, such as mitigating waste disposal issues and creating additional income sources for the agricultural sector. Despite the significant potential of agricultural waste for energy storage and conversion, several challenges remain. These include issues related to logistics and transportation, the need for pretreatment, and concerns about economic feasibility. Future research should aim to enhance conversion technologies and better integrate agricultural waste into energy and agricultural systems. This review discusses various energy conversion technologies and applications of agricultural waste, including biofuels, biogas, and direct combustion, while exploring its role in energy storage through biochar. This review examines the composition and properties of agricultural waste, the various technologies available for energy conversion, and how agricultural waste can be utilized as a feedstock for biofuels, biogas, and direct combustion. It also investigates the integration of agricultural waste in energy storage solutions like biochar and explores other agricultural applications beyond energy production.

VL  - 10
IS  - 3
ER  -

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