Multianalytical characterization of biochar and hydrochar produced from waste biomasses for environmental and agricultural applications
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Biochar (BC) and hydrochar (HC) are solid by-products obtained from various types of biomasses through the processes of pyrolysis and hydrothermal carbonization, respectively. Both BC and HC represent a sustainable solution for carbon sequestration and can be used as soil amendments or sorbents for organic and inorganic pollutants. However, the properties of BC and HC largely depend on feedstock and production parameters, which significantly affect their proper use. A detailed characterization of these materials is therefore needed to assess their suitability for environmental and/or agricultural applications. In this work, two BC samples and two HC samples were characterized with a multianalytical approach, including total reflection X-ray fluorescence (TXRF) spectroscopy, scanning electron microscopy (SEM), Fourier-transform infrared (FT-IR) spectroscopy, thermogravimetric analyses (TG), and pyrolysis coupled to gas chromatography and mass spectrometry (Py-GC/MS). By comparing BC and HC data, HC showed a higher content of mineral elements, including important plant nutrients and potentially toxic elements. HC produced from solid urban wastes contained also some potentially toxic organic molecules, like chlorinated aromatic compounds. BC samples were characterized by a higher porosity and hydrophobicity than HC, thus being potentially more suitable for the sorption of organic pollutants. HC samples showed a higher content of cellulose and hemicellulose, resulting in a more hydrophilic but less thermally stable material than BC. In conclusion, both BC and HC have interesting properties for environmental and agricultural applications but careful selection of feedstock is needed, especially for HC production.
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Alkaline biochar can be used as a liming material for neutralizing acid soils.
“Alkaline biochar can be used as a liming material for neutralizing acid soils (Taskin et al. 2019).”
From Biochar and its importance on nutrient dynamics in soil and plant (2020) · cites this paper as Taskin et al. 2019
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Biochar and its importance on nutrient dynamics in soil and plant
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- Authors
- Taskin, E., de Castro Bueno, C., Allegretta, I., Terzano, R., Rosa, A. H., & Loffredo, E.
- Affiliations
- University of Bari Aldo Moro (IT)
- Corresponding author
- Terzano, Roberto
- Venue
- Chemosphere
- Publisher
- Elsevier BV
- Published
- 2019-10
- Volume
- 233
- Pages
- 422-430
- ISSN
- 0045-6535 (ISSN-L)
- OpenAlex
- W2947063520
- Cited by
- 138
- References
- 55
- Citations by year
- 2026: 18 · 2025: 19 · 2024: 17 · 2023: 21 · 2022: 15 · 2021: 17 · 2020: 21 · 2019: 10
- FWCI
- 5.56
- Type
- journal article
- Language
- en
- Open access
- green
- americanae.aecid.es
- Licence
- Locations
- Chemosphere (publishedVersion)
- PubMed (publishedVersion)
- Americanae (AECID Library) (submittedVersion, other-oa)
- AIRUS (submittedVersion, cc-by-nc-nd)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
- CINECA IRIS Institutional Research Information System (University of Bari Aldo Moro) (submittedVersion)
- Funders
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Ministério da Ciência, Tecnologia, Inovações e Comunicações
- Universita degli Studi di Bari Aldo Moro
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
- Keywords
- biochar, hydrochar, biomass waste, hydrothermal carbonization, pyrolysis, potentially toxic elements, chlorinated aromatic compounds, soil amendment, pollutant sorption, carbon sequestration, feedstock selection, municipal solid waste
- MeSH terms
- Adsorption, Charcoal, Conservation of Natural Resources, Environmental Pollutants, Fertilizers, Soil, Biomass, Carbon Sequestration, Solid Waste
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