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Original title:
Properties and use of high-temperature biochar
Authors: Sedmihradská, Anežka
Document type: Papers
Conference/Event: Bažant postraguate conference 2023, Prague (CZ), 20230531
Year: 2023
Language: eng
Abstract: Despite being a hot topic in environmental research, biochar and its properties have been mainly investigated from the perspectives of feedstock type and pyrolysis temperature. Few studies have explored the effect of particle size on biochar properties.Even when the effect of particle size on crop efficiency is recognized, there is a lack of corresponding data and analysis.2–7 Therefore, we thoroughly analyzed (proximate and ultimate analysis, SEM, XRD, Raman spectroscopy) four particle size fractions (< 0.5, 0.5–2, 2–5, > 5 mm) of high-temperature biochar from a gasification power plant, the sizes reflecting those of biochar actually used in agriculture. The < 0.5 mm fraction was significantly different in terms of carbon structure, and carbon and ash content. Consequently, pH, electric conductivity and heavy metal content also differed greatly. The corresponding results for the other particle fractions were broadly similar to each other. Interestingly, for all fractions, the porosity and H/C ratio were independent of particle size, meaning that, regardless of size, the investigated biochar fractions are equally stable in soil. The 0.5–2 mm fraction was then selected to be used in different industrial or agricultural processes such as the anaerobic digestion of wastewater or livestock feeding. The effect of biochar on these processes is currently under investigation, providing only initial data so far.
Keywords: biochar; high-temperature biochar; particle size on biochar
Host item entry: Proceedings of Abstracts, ISBN 978-80-86186-29-0
Rights: This work is protected under the Copyright Act No. 121/2000 Coll.
Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Original record: https://hdl.handle.net/11104/0343318
Permalink: http://www.nusl.cz/ntk/nusl-526213
The record appears in these collections:
Research > Institutes ASCR > Institute of Chemical Process Fundamentals
Conference materials > Papers
Authors: Sedmihradská, Anežka
Document type: Papers
Conference/Event: Bažant postraguate conference 2023, Prague (CZ), 20230531
Year: 2023
Language: eng
Abstract: Despite being a hot topic in environmental research, biochar and its properties have been mainly investigated from the perspectives of feedstock type and pyrolysis temperature. Few studies have explored the effect of particle size on biochar properties.Even when the effect of particle size on crop efficiency is recognized, there is a lack of corresponding data and analysis.2–7 Therefore, we thoroughly analyzed (proximate and ultimate analysis, SEM, XRD, Raman spectroscopy) four particle size fractions (< 0.5, 0.5–2, 2–5, > 5 mm) of high-temperature biochar from a gasification power plant, the sizes reflecting those of biochar actually used in agriculture. The < 0.5 mm fraction was significantly different in terms of carbon structure, and carbon and ash content. Consequently, pH, electric conductivity and heavy metal content also differed greatly. The corresponding results for the other particle fractions were broadly similar to each other. Interestingly, for all fractions, the porosity and H/C ratio were independent of particle size, meaning that, regardless of size, the investigated biochar fractions are equally stable in soil. The 0.5–2 mm fraction was then selected to be used in different industrial or agricultural processes such as the anaerobic digestion of wastewater or livestock feeding. The effect of biochar on these processes is currently under investigation, providing only initial data so far.
Keywords: biochar; high-temperature biochar; particle size on biochar
Host item entry: Proceedings of Abstracts, ISBN 978-80-86186-29-0
Rights: This work is protected under the Copyright Act No. 121/2000 Coll.
Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Original record: https://hdl.handle.net/11104/0343318
Permalink: http://www.nusl.cz/ntk/nusl-526213
The record appears in these collections:
Research > Institutes ASCR > Institute of Chemical Process Fundamentals
Conference materials > Papers
Record created 2023-06-18, last modified 2023-12-11
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