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<p>The increasing demand for sustainable biomass solutions has positioned bamboo as a promising alternative for biochar production, given its rapid growth and high yield characteristics. The objective of this work was to determine the potential of different bamboo species for the production of biochars for energy applications. The biochars, coming from the species <i>Dendrocalamus strictus</i>, <i>Dendrocalamus asper</i>, <i>Guadua chacoensis</i>, and <i>Bambusa nutans</i>, were produced in a muffle furnace, obtaining gravimetric yields and their chemical and physical properties. The structural chemical composition of the species studied showed differences between them. <i>Bambusa nutans</i> had the highest lignin content (29.66%). For the elementary chemical composition, all species showed similarities. Bambusa nutans and <i>Dendrocalamus strictus</i> had higher volatile content (82.62 and 80.22%) and lower ash content (1.28 and 1.48%). In biochar, the elemental composition varied between species, with the highest carbon contents observed in biochar from <i>Bambusa nutans</i> and <i>Dendrocalamus strictus</i> (90.26 and 89.66%, respectively). <i>Guadua chacoensis</i> biochar obtained the highest calorific value of 7648.19&#xa0;kcal&#xa0;kg<sup>−1</sup>. Biochar from the species <i>Bambusa nutans</i> and <i>Dendrocalamus strictus</i> presented higher fixed carbon content 83.84 and 84.96 and lower ash content (7.74 and 8.20%), respectively. Fresh biomass and biochars from the species <i>Bambusa nutans</i> and <i>Dendrocalamus strictus</i> showed favorable characteristics as an energy source. Therefore, these bamboo species have the potential to be used as an energy source and for biochar production.</p> Graphical abstract <p></p>

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Bamboo-derived biochars: physicochemical properties and implications for soil fertility and sustainability

  • 期刊论文

  • 发表日期：

    2025年3月4日

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  • Krisnna Sousa Alves,
  • Tiago Guimarães,
  • Ricardo de Carvalho Bittencout,
  • Peter Alisson Ribeiro Gonçalves,
  • Angélica de Cássia Oliveira Carneiro,
  • Ana Márcia Macedo Ladeira Carvalho,
  • Marcelo Moreira da Costa

摘要

The increasing demand for sustainable biomass solutions has positioned bamboo as a promising alternative for biochar production, given its rapid growth and high yield characteristics. The objective of this work was to determine the potential of different bamboo species for the production of biochars for energy applications. The biochars, coming from the species Dendrocalamus strictus, Dendrocalamus asper, Guadua chacoensis, and Bambusa nutans, were produced in a muffle furnace, obtaining gravimetric yields and their chemical and physical properties. The structural chemical composition of the species studied showed differences between them. Bambusa nutans had the highest lignin content (29.66%). For the elementary chemical composition, all species showed similarities. Bambusa nutans and Dendrocalamus strictus had higher volatile content (82.62 and 80.22%) and lower ash content (1.28 and 1.48%). In biochar, the elemental composition varied between species, with the highest carbon contents observed in biochar from Bambusa nutans and Dendrocalamus strictus (90.26 and 89.66%, respectively). Guadua chacoensis biochar obtained the highest calorific value of 7648.19 kcal kg−1. Biochar from the species Bambusa nutans and Dendrocalamus strictus presented higher fixed carbon content 83.84 and 84.96 and lower ash content (7.74 and 8.20%), respectively. Fresh biomass and biochars from the species Bambusa nutans and Dendrocalamus strictus showed favorable characteristics as an energy source. Therefore, these bamboo species have the potential to be used as an energy source and for biochar production.

Graphical abstract