Full text

Turn on search term navigation

© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Soil amended with biochar is considered a significant response to climate change, remediation of degraded soils, and agronomic improvements. An artisanal mobile pyrolysis kiln was developed for small-sized biomass inputs. Approximately 190 kg of biochar was produced in 21 carbonisation processes using acai residues (Euterpe oleracea Mart.) as raw material, as they are among the most abundant agro-industrial residues in the Amazon. It is a valuable and underutilised biomass resource, often inadequately discarded, causing environmental impact and health risks. The physicochemical and structural characteristics of four representative biochar samples from the pyrolysis processes were evaluated using different techniques. The produced biochar had an average pH of 8.8 and the ICP-OES results indicate that the most abundant elements were potassium (K) and phosphorus (P). Results of the elemental composition indicate that the produced biochar has a very stable carbon with an average H/C ratio of 0.23 and O/C ratio of 0.16, indicating that the pyrolysis performed was effective in transforming organic and volatile compounds into stable structures. Variations in nutrient contents call for soil application planning, as performed for other agricultural inputs. The developed mobile kiln can be adapted and favour the decentralisation of biochar production among small and medium-sized producers. Here, we show that even with variations in artisanal production, the biochar produced exhibits favourable characteristics for agronomic use and combating climate changes.

Details

Title
Characterization of Biochar Produced in a Mobile Handmade Kiln from Small-Sized Waste Biomass for Agronomic and Climate Change Benefits
Author
Vinicius, John 1   VIAFID ORCID Logo  ; Ana Rita de Oliveira Braga 1   VIAFID ORCID Logo  ; Criscian Kellen Amaro de Oliveira Danielli 1 ; Heiriane Martins Sousa 2   VIAFID ORCID Logo  ; Danielli, Filipe Eduardo 3   VIAFID ORCID Logo  ; Rayanne Oliveira de Araujo 4 ; Cláudia Saramago de Carvalho Marques-dos-Santos 5   VIAFID ORCID Logo  ; Newton Paulo de Souza Falcão 4   VIAFID ORCID Logo  ; João Francisco Charrua Guerra 6   VIAFID ORCID Logo 

 Federal Institute of Education, Science, and Technology of Amazonas—IFAM, Manaus 69025-010, AM, Brazil; [email protected] (A.R.d.O.B.); [email protected] (C.K.A.d.O.D.); [email protected] (H.M.S.); Forest Research Centre CEF, Associate Laboratory TERRA, School of Agriculture ISA-UL, University of Lisbon, 1000-001 Lisboa, Portugal; [email protected] (F.E.D.); [email protected] (C.S.d.C.M.-d.-S.) 
 Federal Institute of Education, Science, and Technology of Amazonas—IFAM, Manaus 69025-010, AM, Brazil; [email protected] (A.R.d.O.B.); [email protected] (C.K.A.d.O.D.); [email protected] (H.M.S.) 
 Forest Research Centre CEF, Associate Laboratory TERRA, School of Agriculture ISA-UL, University of Lisbon, 1000-001 Lisboa, Portugal; [email protected] (F.E.D.); [email protected] (C.S.d.C.M.-d.-S.); Superintendency of the Manaus Free Trade Zone—SUFRAMA, Manaus 69075-830, AM, Brazil 
 National Institute for Amazonian Research—INPA, Manaus 69096-000, AM, Brazil; [email protected] (R.O.d.A.); [email protected] (N.P.d.S.F.) 
 Forest Research Centre CEF, Associate Laboratory TERRA, School of Agriculture ISA-UL, University of Lisbon, 1000-001 Lisboa, Portugal; [email protected] (F.E.D.); [email protected] (C.S.d.C.M.-d.-S.) 
 Institute of Social Sciences at the University of Lisbon—ICS-UL, University of Lisbon, 1000-001 Lisboa, Portugal; [email protected] 
First page
1861
Publication year
2024
Publication date
2024
Publisher
MDPI AG
e-ISSN
20734395
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3097808298
Copyright
© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.