Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1174769
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dc.contributor.authorSILVA, M. A. da
dc.contributor.authorABDALLA FILHO, A. L.
dc.contributor.authorCARNIER, R.
dc.contributor.authorSANTOS, J. de O.
dc.contributor.authorSALDANHA, M. F. C.
dc.contributor.authorCOSCIONE, A. R.
dc.contributor.authorCARVALHO, T. A. de
dc.contributor.authorMERLOTTO, G. R.
dc.contributor.authorANDRADE, C. A. de
dc.date.accessioned2025-04-11T12:48:02Z-
dc.date.available2025-04-11T12:48:02Z-
dc.date.created2025-04-11
dc.date.issued2025
dc.identifier.citationTechnologies, v. 13, n. 3, p. 100, 2025.
dc.identifier.issn2227-7080
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1174769-
dc.descriptionAbstract: The pyrolysis process of residues has emerged as a sustainable method for managing organic waste, producing biochars that offer significant benefits for agriculture and the environment. These benefits depend on the properties of the raw biomass and the pyrolysis conditions, such as washing and drying. This study investigated biochar production through slow pyrolysis at 300 °C, using eight biomass types, four being plant residues (PBR)—sugarcane bagasse, filter cake, sawdust, and stranded algae—and four non-plant-based residues (NPBR)—poultry litter, sheep manure, layer chicken manure, and sewage sludge. The physicochemical properties assessed included yield, carbon (C) and nitrogen (N) content, electrical conductivity, pH, macro- and micronutrients, and potentially toxic metals. Pyrolysis generally increased pH and concentrated C, N, phosphorus (P), and other nutrients while reducing electrical conductivity, C/N ratio, potassium (K), and sulfur (S) contents. The increases in the pH of the biochars in relation to the respective biomasses were between 0.3 and 1.9, with the greatest differences observed for the NPBR biochars. Biochars from sugarcane bagasse and sawdust exhibited high C content (74.57–77.67%), highlighting their potential use for C sequestration. Filter cake biochar excelled in P (14.28 g kg⁻1) and micronutrients, while algae biochar showed elevated N, calcium (Ca), and boron (B) levels. NPBR biochars were rich in N (2.28–3.67%) and P (20.7–43.4 g kg⁻1), making them ideal fertilizers. Although sewage sludge biochar contained higher levels of potentially toxic metals, these remained within regulatory limits. This research highlights variations in the composition of biochars depending on the characteristics of the original biomass and the pyrolysis process, to contribute to the production of customized biochars for the purposes of their application in the soil. Biochars derived from exclusively plant biomasses showed important aspects related to the recovery of carbon from biomass and can be preferred as biochar used to sequester carbon in the soil. On the other hand, biochars obtained from residues with some animal contributions are more enriched in nutrients and should be directed to the management of soil fertility.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectBiocarvão
dc.titleLow-temperature slow pyrolysis: exploring biomass-specific biochar characteristics and potential for soil applications.
dc.typeArtigo de periódico
dc.subject.thesagroCarvão Vegetal
dc.subject.thesagroFertilizante
dc.subject.thesagroResíduo Agrícola
dc.subject.thesagroBagaço
dc.subject.thesagroCana de Açúcar
dc.subject.thesagroEsterco de Galinha
dc.subject.thesagroEsterco de Caprino
dc.subject.thesagroLodo Residual
dc.subject.thesagroCarbono
dc.subject.nalthesaurusBiochar
dc.subject.nalthesaurusPlant residues
dc.subject.nalthesaurusSugarcane bagasse
dc.subject.nalthesaurusSewage sludge
dc.subject.nalthesaurusAnimal manures
dc.subject.nalthesaurusSheep manure
dc.subject.nalthesaurusCarbon sequestration
dc.subject.nalthesaurusPyrolysis
dc.subject.nalthesaurusOrganic fertilizers
dc.subject.nalthesaurusFertilizers
dc.subject.nalthesaurusWaste management
dc.subject.nalthesaurusSoil amendments
riaa.ainfo.id1174769
riaa.ainfo.lastupdate2025-04-11
dc.identifier.doihttps://doi.org/10.3390/technologies13030100
dc.contributor.institutionMATHEUS ANTONIO DA SILVA; ADIBE LUIZ ABDALLA FILHO; RUAN CARNIER; JULIANA DE OLIVEIRA SANTOS MARCATTO, CNPMA; MARCELO FRANCISCO COSTA SALDANHA, CNPMA; ALINE RENEE COSCIONE, INSTITUTO AGRONÔMICO DE CAMPINAS; THAÍS ALVES DE CARVALHO; GABRIEL RODRIGO MERLOTTO; CRISTIANO ALBERTO DE ANDRADE, CNPMA.
Appears in Collections:Artigo em periódico indexado (CNPMA)

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