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Development of a novel biochar-made porous monolith for enhanced C1 and H(2) fermentation

Biochar is a carbonaceous porous material that is produced through the thermal processing of biomass under oxygen-limited environment. Nevertheless, biochar is known to be an inexpensive and sustainable raw material with a wide range of possible applications. Recently, biochar has been discovered as...

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Autores principales: Küçükağa, Yusuf, Facchin, Andrea, Alfonsi, Aaron, Costantini, Federica, Kara, Serdar, Torri, Cristian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10416014/
https://www.ncbi.nlm.nih.gov/pubmed/37577168
http://dx.doi.org/10.1016/j.mex.2023.102296
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author Küçükağa, Yusuf
Facchin, Andrea
Alfonsi, Aaron
Costantini, Federica
Kara, Serdar
Torri, Cristian
author_facet Küçükağa, Yusuf
Facchin, Andrea
Alfonsi, Aaron
Costantini, Federica
Kara, Serdar
Torri, Cristian
author_sort Küçükağa, Yusuf
collection PubMed
description Biochar is a carbonaceous porous material that is produced through the thermal processing of biomass under oxygen-limited environment. Nevertheless, biochar is known to be an inexpensive and sustainable raw material with a wide range of possible applications. Recently, biochar has been discovered as an efficient biological catalyst for anaerobic conversion, mainly due to its highly porous structure with micro and macro channels, which procures a viable living area for attached-grown microorganisms. Whereas it is never applied to improve the biological conversion of gas substances such as C1 (e.g., CO, CO(2)) and H(2), which is a promising research area with increasing commercial interest. However, considering that biological reaction is limited by the target water solubility of gas substrates, special attention is required when combining biochar for gas fermentation. The goal was to create a novel gas sparger where the biofilm grows on biochar, thus improving the interaction with the gaseous substrate. For this purpose, polystyrene foam and powdered biochar were compounded to form a mouldable composite, which was then cast as a porous monolith. • Biochar-made sparger (BS) was investigated for the homoacetogenic conversion of H(2) gas via microbial mixed cultures as opposed to a control test equipped with a stone sparger. • BS showed a significantly better performance in terms of biological gas fixation rate (36% more than control) and productivity (8.5 g(COD) L(−1) d(−1)).
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spelling pubmed-104160142023-08-12 Development of a novel biochar-made porous monolith for enhanced C1 and H(2) fermentation Küçükağa, Yusuf Facchin, Andrea Alfonsi, Aaron Costantini, Federica Kara, Serdar Torri, Cristian MethodsX Chemistry Biochar is a carbonaceous porous material that is produced through the thermal processing of biomass under oxygen-limited environment. Nevertheless, biochar is known to be an inexpensive and sustainable raw material with a wide range of possible applications. Recently, biochar has been discovered as an efficient biological catalyst for anaerobic conversion, mainly due to its highly porous structure with micro and macro channels, which procures a viable living area for attached-grown microorganisms. Whereas it is never applied to improve the biological conversion of gas substances such as C1 (e.g., CO, CO(2)) and H(2), which is a promising research area with increasing commercial interest. However, considering that biological reaction is limited by the target water solubility of gas substrates, special attention is required when combining biochar for gas fermentation. The goal was to create a novel gas sparger where the biofilm grows on biochar, thus improving the interaction with the gaseous substrate. For this purpose, polystyrene foam and powdered biochar were compounded to form a mouldable composite, which was then cast as a porous monolith. • Biochar-made sparger (BS) was investigated for the homoacetogenic conversion of H(2) gas via microbial mixed cultures as opposed to a control test equipped with a stone sparger. • BS showed a significantly better performance in terms of biological gas fixation rate (36% more than control) and productivity (8.5 g(COD) L(−1) d(−1)). Elsevier 2023-07-23 /pmc/articles/PMC10416014/ /pubmed/37577168 http://dx.doi.org/10.1016/j.mex.2023.102296 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Chemistry
Küçükağa, Yusuf
Facchin, Andrea
Alfonsi, Aaron
Costantini, Federica
Kara, Serdar
Torri, Cristian
Development of a novel biochar-made porous monolith for enhanced C1 and H(2) fermentation
title Development of a novel biochar-made porous monolith for enhanced C1 and H(2) fermentation
title_full Development of a novel biochar-made porous monolith for enhanced C1 and H(2) fermentation
title_fullStr Development of a novel biochar-made porous monolith for enhanced C1 and H(2) fermentation
title_full_unstemmed Development of a novel biochar-made porous monolith for enhanced C1 and H(2) fermentation
title_short Development of a novel biochar-made porous monolith for enhanced C1 and H(2) fermentation
title_sort development of a novel biochar-made porous monolith for enhanced c1 and h(2) fermentation
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10416014/
https://www.ncbi.nlm.nih.gov/pubmed/37577168
http://dx.doi.org/10.1016/j.mex.2023.102296
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