LAPSE:2023.25126
Published Article
LAPSE:2023.25126
Assessment of Biomass and Biochar of Maritime Pine as a Porous Medium for Water Retention in Soils
March 28, 2023
Pinewood biomass in Portugal can be considered a major source of biochar for soil physical, chemical, and biological edaphic amendment. This work intended to evaluate the aptitude of lab produced biochar for upgrading soil moisture dynamics’ relationships considering mixtures of biochar with silica-based sand. The methodology used focused on the carbonization of pine biomass with inert atmosphere at 300 °C, 400 °C, 500 °C and 600 °C, followed by a chemical proximate and thermogravimetric analysis, scanning electron microscopy, Fourier Transform Infrared analysis, numerical modeling, and characterization of biochar porosity by gas adsorption (Brunauer−Emmett−Teller) and mercury porosimetry. The results showed the increased amounts of soil water retention and plant available water, evaluated through pF curves, due to biochar application. The thermogravimetric analysis mass loss patterns and FTIR transmittance, reflected major structural modifications in carbonized products by comparison with raw biomass. Mercury porosimetry showed that biochar pores between 392 and 250 μm and 32 μm and 6 μm gave the highest pore volume for water retention with a major increase from carbonization, by comparison with physical activation. The used methodologies allowed us to conclude that the carbonaceous feedstock can potentiate the improvement of soil water relations aiming at agricultural land use.
Keywords
biochar, Biomass, carbonization, porosity, soil water retention, specific surface area
Suggested Citation
Santos RV, Mendes MAA, Alexandre C, Carrott MR, Rodrigues A, Ferreira AF. Assessment of Biomass and Biochar of Maritime Pine as a Porous Medium for Water Retention in Soils. (2023). LAPSE:2023.25126
Author Affiliations
Santos RV: Instituto Superior Técnico, Universidade de Lisboa, 1 1049-001 Lisboa, Portugal
Mendes MAA: IDMEC, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal [ORCID]
Alexandre C: Department of Geosciences (ECT) and MED—Mediterranean Institute for Agriculture, Environment and Development, Instituto de Investigação e Formação Avançada, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal [ORCID]
Carrott MR: LAQV-REQUIMTE, Instituto de Investigação e Formação Avançada, Departamento de Química e Bioquímica, Escola de Ciências e Tecnologia, Colégio Luís António Verney, Universidade de Évora, 7000-671 Évora, Portugal [ORCID]
Rodrigues A: IDMEC, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; INIAV, Instituto de Investigação Agrária e Veterinária, 2780-157 Oeiras, Portugal; GeoBiotec, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2825 [ORCID]
Ferreira AF: IDMEC, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Journal Name
Energies
Volume
15
Issue
16
First Page
5882
Year
2022
Publication Date
2022-08-13
Published Version
ISSN
1996-1073
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Original Submission
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PII: en15165882, Publication Type: Journal Article
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LAPSE:2023.25126
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doi:10.3390/en15165882
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Mar 28, 2023
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