Granulation and pyrolysis of agricultural residues for an enhanced circular economy
This study highlights a sustainable approach to agricultural waste management by transforming residues into value-added products through granulation and pyrolysis. Agricultural biomass, a prevalent waste stream, holds great potential as a key ingredient for enhancing soil health. However, the common...
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Elsevier
2025-06-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025009958 |
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| author | Maryna Zhylina Andrei Shishkin Denis Miroshnichenko Vita Sterna Jurijs Ozolins Linda Ansone-Bertina Maris Klavins Gaurav Goel Saurav Goel |
| author_facet | Maryna Zhylina Andrei Shishkin Denis Miroshnichenko Vita Sterna Jurijs Ozolins Linda Ansone-Bertina Maris Klavins Gaurav Goel Saurav Goel |
| author_sort | Maryna Zhylina |
| collection | DOAJ |
| description | This study highlights a sustainable approach to agricultural waste management by transforming residues into value-added products through granulation and pyrolysis. Agricultural biomass, a prevalent waste stream, holds great potential as a key ingredient for enhancing soil health. However, the common practice of incineration diminishes this opportunity by wasting valuable resources. This investigation sought to demonstrate that low-temperature slow pyrolysis of biomass can be used to create value-added products such as animal feed, biochar, and heating briquettes. The study involved a comparative analysis of wheat straw, barley straw, and oat husk for biochar production, examining key properties like moisture content, ash content, and fiber composition. The optimal granulation process for combining these materials with peat was established, resulting in robust pellets consisting of 85 % biomass and 15 % peat. Pyrolysis was conducted at 500 °C with a heating rate of 5 °C per minute. The resulting granules were evaluated for their strength, density, and moisture absorption. The barley straw pellets were found to have the best mechanical strength of 89.40 N, the best moisture absorption capacity of 49.50 % and the highest product yield of 54.1 % after pyrolysis. When used in lettuce cultivation, the combination of peat with barley straw as a binder yielded the most promising results. Introducing circularity in biomass reduces waste, enhances soil health and creates economic opportunities, reinforcing the principles of a circular economy. This approach promotes resource efficiency, minimizes environmental impact and contributes to a more sustainable agricultural sector. |
| format | Article |
| id | doaj-art-b710e45ddba044459d0bed53cd29433b |
| institution | DOAJ |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-b710e45ddba044459d0bed53cd29433b2025-08-20T03:18:11ZengElsevierResults in Engineering2590-12302025-06-012610491910.1016/j.rineng.2025.104919Granulation and pyrolysis of agricultural residues for an enhanced circular economyMaryna Zhylina0Andrei Shishkin1Denis Miroshnichenko2Vita Sterna3Jurijs Ozolins4Linda Ansone-Bertina5Maris Klavins6Gaurav Goel7Saurav Goel8Riga Technical University, Faculty of Natural Sciences and Technology, Institute of Biomaterials and Bioengineering, Paula Valdena Street 3, K-1, Riga, LV-1048, Latvia; Institute of Agricultural Resources and Economics, Stende Research Centre, Dizzemes, Dizstende, Libagu parish, Talsu County, LV-3258, LatviaRiga Technical University, Faculty of Natural Sciences and Technology, Institute of Biomaterials and Bioengineering, Paula Valdena Street 3, K-1, Riga, LV-1048, LatviaDepartment of Oil, Gas and Solid Fuel Processing Technology, National Technical University Kharkiv Polytechnic Institute, 2, Kyrpychova str., 61002, Kharkiv, Ukraine; Coal Department, State Enterprise Ukrainian State Research Institute for Carbochemistry (UKHIN), Kharkiv, 61023, Ukraine. 2Institute of Agricultural Resources and Economics, Stende Research Centre, Dizzemes, Dizstende, Libagu parish, Talsu County, LV-3258, LatviaRiga Technical University, Faculty of Natural Sciences and Technology, Institute of Biomaterials and Bioengineering, Paula Valdena Street 3, K-1, Riga, LV-1048, LatviaDepartment of Environmental Science, University of Latvia, Raina blvd. 19, LV 1586, Riga, LatviaDepartment of Environmental Science, University of Latvia, Raina blvd. 19, LV 1586, Riga, LatviaDepartment of Energy and Environment, Thapar Institute of Engineering & Technology, Patiala, Punjab, 147004, IndiaSchool of Engineering and Design, London South Bank University, London, SE10AA, UK; Department of Mechanical Engineering, University of Petroleum and Energy Studies, Dehradun, 248007, India; Corresponding author.This study highlights a sustainable approach to agricultural waste management by transforming residues into value-added products through granulation and pyrolysis. Agricultural biomass, a prevalent waste stream, holds great potential as a key ingredient for enhancing soil health. However, the common practice of incineration diminishes this opportunity by wasting valuable resources. This investigation sought to demonstrate that low-temperature slow pyrolysis of biomass can be used to create value-added products such as animal feed, biochar, and heating briquettes. The study involved a comparative analysis of wheat straw, barley straw, and oat husk for biochar production, examining key properties like moisture content, ash content, and fiber composition. The optimal granulation process for combining these materials with peat was established, resulting in robust pellets consisting of 85 % biomass and 15 % peat. Pyrolysis was conducted at 500 °C with a heating rate of 5 °C per minute. The resulting granules were evaluated for their strength, density, and moisture absorption. The barley straw pellets were found to have the best mechanical strength of 89.40 N, the best moisture absorption capacity of 49.50 % and the highest product yield of 54.1 % after pyrolysis. When used in lettuce cultivation, the combination of peat with barley straw as a binder yielded the most promising results. Introducing circularity in biomass reduces waste, enhances soil health and creates economic opportunities, reinforcing the principles of a circular economy. This approach promotes resource efficiency, minimizes environmental impact and contributes to a more sustainable agricultural sector.http://www.sciencedirect.com/science/article/pii/S2590123025009958BiomassPeatGranulationPyrolysisBiocharSoil quality |
| spellingShingle | Maryna Zhylina Andrei Shishkin Denis Miroshnichenko Vita Sterna Jurijs Ozolins Linda Ansone-Bertina Maris Klavins Gaurav Goel Saurav Goel Granulation and pyrolysis of agricultural residues for an enhanced circular economy Results in Engineering Biomass Peat Granulation Pyrolysis Biochar Soil quality |
| title | Granulation and pyrolysis of agricultural residues for an enhanced circular economy |
| title_full | Granulation and pyrolysis of agricultural residues for an enhanced circular economy |
| title_fullStr | Granulation and pyrolysis of agricultural residues for an enhanced circular economy |
| title_full_unstemmed | Granulation and pyrolysis of agricultural residues for an enhanced circular economy |
| title_short | Granulation and pyrolysis of agricultural residues for an enhanced circular economy |
| title_sort | granulation and pyrolysis of agricultural residues for an enhanced circular economy |
| topic | Biomass Peat Granulation Pyrolysis Biochar Soil quality |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025009958 |
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