Cited by 138Thermochemical Biomass Conversion ProcessesAdsorption and biosorption for pollutant removalSoil Carbon and Nitrogen Dynamics

Multianalytical characterization of biochar and hydrochar produced from waste biomasses for environmental and agricultural applications

Open access
Taskin, Eren, de Castro Bueno, Carolina, Allegretta, Ignazio, Terzano, Roberto, Rosa, Andrè Henrique, Loffredo, Elisabetta·2019·Chemosphere

Abstract

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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Crossref · 10.1016/j.chemosphere.2019.05.204

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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
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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