Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
Texto Completo: | https://doi.org/10.21708/bdtd.ppgfito.tese.5411 https://repositorio.ufersa.edu.br/handle/prefix/5411 |
Resumo: | Biochar is a product rich in carbon produced from pyrolysis of organic materials in an environment with limited oxygen or anoxic conditions. The pyrolysis temperature of material has a direct influence on the properties of biochar and, consequently, on its potential for agricultural and environmental use. In this research, the biochar characteristics of eucalyptus wood residues produced at different pyrolysis temperatures and their relationship with the behavior of herbicide hexazinone in soil were evaluated. Initially, biochars were produced at temperatures of 450, 550, 650, 750, 850 and 950 °C on the hydrogen potential (pH value), electrical conductivity (EC), ash content, yield, volatile matter (VM) content, elemental analysis, Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction, scanning electron microscopy (SEM), specific surface area (SSA) and micropore volume (MV) (by N2 adsorption) of eucalyptus wood-derived biochar. In the second stage, sorption/desorption experiments were executed using the batch equilibrium method, leaching in glass columns and distribution in biometric flasks with biochars produced between temperatures of 650 to 950 °C. The results showed a positive correlation of pyrolysis temperature with pH value, EC and elemental carbon, and a negative correlation with yield, MV, oxygen, elemental hydrogen, SSA, H/C, O/C and (O+N)/C ratios. The Principal component analysis showed that the highest polarity index (O+N/C), ash content, and N/C ratio associated with a low H/C ratio were the characteristics that had the greatest influence on increasing sorption, promoting a reduction in leaching and availability of hexazinone. The biochars produced at 850 and 950 °C obtained the highest sorption, reducing leaching by more than 80% and hexazinone availability by more than 46%. The addition of biochar was efficient in decreasing the mobility and availability of hexazinone in the soil, reducing the risk of environmental contamination of this herbicide. However, the lowest available amount of hexazinone in the soil can reduce the effectiveness of weed control in field conditions |
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Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soilHerbicidaLixiviaçãoPersistênciaPoluente orgânicoSorventeHerbicideLeachingOrganic pollutantPersistenceSorbentCIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIABiochar is a product rich in carbon produced from pyrolysis of organic materials in an environment with limited oxygen or anoxic conditions. The pyrolysis temperature of material has a direct influence on the properties of biochar and, consequently, on its potential for agricultural and environmental use. In this research, the biochar characteristics of eucalyptus wood residues produced at different pyrolysis temperatures and their relationship with the behavior of herbicide hexazinone in soil were evaluated. Initially, biochars were produced at temperatures of 450, 550, 650, 750, 850 and 950 °C on the hydrogen potential (pH value), electrical conductivity (EC), ash content, yield, volatile matter (VM) content, elemental analysis, Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction, scanning electron microscopy (SEM), specific surface area (SSA) and micropore volume (MV) (by N2 adsorption) of eucalyptus wood-derived biochar. In the second stage, sorption/desorption experiments were executed using the batch equilibrium method, leaching in glass columns and distribution in biometric flasks with biochars produced between temperatures of 650 to 950 °C. The results showed a positive correlation of pyrolysis temperature with pH value, EC and elemental carbon, and a negative correlation with yield, MV, oxygen, elemental hydrogen, SSA, H/C, O/C and (O+N)/C ratios. The Principal component analysis showed that the highest polarity index (O+N/C), ash content, and N/C ratio associated with a low H/C ratio were the characteristics that had the greatest influence on increasing sorption, promoting a reduction in leaching and availability of hexazinone. The biochars produced at 850 and 950 °C obtained the highest sorption, reducing leaching by more than 80% and hexazinone availability by more than 46%. The addition of biochar was efficient in decreasing the mobility and availability of hexazinone in the soil, reducing the risk of environmental contamination of this herbicide. However, the lowest available amount of hexazinone in the soil can reduce the effectiveness of weed control in field conditionsO biochar é um produto rico em carbono produzido a partir pirólise de materiais orgânicos em um ambiente com condições limitadas de oxigênio ou anóxicas. A temperatura de pirólise do material tem influência direta nas propriedades do biochar e, consequentemente, no seu potencial de seu uso agrícola e ambiental. Nesta pesquisa foram avaliadas as características de biochar de resíduos de madeira de eucalipto produzido em diferentes temperaturas de pirólise e sua relação com o comportamento do herbicida hexazinone no solo. Inicialmente realizouse produção dos biochars nas temperaturas de 450, 550, 650, 750, 850 e 950°C e foram determinados o pH, CE, teor de cinzas, rendimento, materiais voláteis (TMV), análise elementar (CHN-O), espectroscopia no infravermelho por transformada de Fourier, área de superfície específica e volume de microporos, difração de raio-X e microscopia eletrônica de varredura. Na segunda etapa foram realizados experimentos de sorção/dessorção foram obtidos pelo método de equilíbrio em lotes, de lixiviação em colunas de vidros e o de distribuição em frascos biométricos com os biochars produzido entre as temperaturas de 650 a 950°C. Os resultados mostraram uma correlação positiva da temperatura de pirólise com o pH, CE e com o carbono elementar, mantendo uma correlação negativa com o rendimento, TMV, oxigênio, hidrogênio elementar, na relação H/C, O/C e (O+N)/C e na área de superfície especifica. A análise de componentes principais mostrou que o maior índice de polaridade (O+N/C), teor de cinzas e relação N/C associado com uma baixa relação de H/C foram as características que tiveram maior influência no aumento da sorção, promovendo uma redução na lixiviação e na disponibilidade do hexazinone. Os biochars produzidos à 850 e 950 °C foram os que obtiveram maior sorção, reduzindo em mais de 80% a lixiviação e em mais de 46% a disponibilidade do hexazinone. A adição do biochar foi eficiente para diminuiu a mobilidade e disponibilidade do hexazinone no solo, reduzindo o risco de contaminação ambiental desse herbicida. No entanto, a menor quantidade disponível de hexazinone no solo pode reduzir a eficácia no controle de plantas daninhas em condição de campo.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESUniversidade Federal Rural do Semi-ÁridoBrasilCentro de Ciências Agrárias - CCAUFERSAPrograma de Pós-Graduação em FitotecniaMendes, Kassio Ferreira01365455175http://lattes.cnpq.br/7101423608732888Souza, Matheus de Freitas09953467633http://lattes.cnpq.br/0300782397272730Silva, Daniel Valadão07015867613http://lattes.cnpq.br/2100406454919685Silva, Eulene Francisco da86629760182http://lattes.cnpq.br/4243362476220476Ferreira, Evander Alves02847835601http://lattes.cnpq.br/5887024898731149Passos, Ana Beatriz Rocha de Jesus10193624729http://lattes.cnpq.br/2583985946567355Fernandes, Bruno Caio Chaves2020-08-31T23:28:05Z2020-03-022020-08-31T23:28:05Z2019-12-19info:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/publishedVersionapplication/pdfCitação com autor incluído no texto: Fernandes (2019) Citação com autor não incluído no texto: (FERNANDES, 2019)https://doi.org/10.21708/bdtd.ppgfito.tese.5411https://repositorio.ufersa.edu.br/handle/prefix/5411porFERNANDES, Bruno Caio Chaves. Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil. 2019. 70 f. Tese (Doutorado em Fitotecnia), Universidade Federal Rural do Semi-Árido, Mossoró, 2019.info:eu-repo/semantics/openAccessCC-BY-SAreponame:Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU)instname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSA2024-12-12T20:12:00Zoai:repositorio.ufersa.edu.br:prefix/5411Repositório Institucionalhttps://repositorio.ufersa.edu.br/PUBhttps://repositorio.ufersa.edu.br/server/oai/requestrepositorio@ufersa.edu.br || admrepositorio@ufersa.edu.bropendoar:2024-12-12T20:12Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) - Universidade Federal Rural do Semi-Árido (UFERSA)false |
dc.title.none.fl_str_mv |
Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil |
title |
Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil |
spellingShingle |
Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil Fernandes, Bruno Caio Chaves Herbicida Lixiviação Persistência Poluente orgânico Sorvente Herbicide Leaching Organic pollutant Persistence Sorbent CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
title_short |
Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil |
title_full |
Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil |
title_fullStr |
Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil |
title_full_unstemmed |
Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil |
title_sort |
Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil |
author |
Fernandes, Bruno Caio Chaves |
author_facet |
Fernandes, Bruno Caio Chaves |
author_role |
author |
dc.contributor.none.fl_str_mv |
Mendes, Kassio Ferreira 01365455175 http://lattes.cnpq.br/7101423608732888 Souza, Matheus de Freitas 09953467633 http://lattes.cnpq.br/0300782397272730 Silva, Daniel Valadão 07015867613 http://lattes.cnpq.br/2100406454919685 Silva, Eulene Francisco da 86629760182 http://lattes.cnpq.br/4243362476220476 Ferreira, Evander Alves 02847835601 http://lattes.cnpq.br/5887024898731149 Passos, Ana Beatriz Rocha de Jesus 10193624729 http://lattes.cnpq.br/2583985946567355 |
dc.contributor.author.fl_str_mv |
Fernandes, Bruno Caio Chaves |
dc.subject.por.fl_str_mv |
Herbicida Lixiviação Persistência Poluente orgânico Sorvente Herbicide Leaching Organic pollutant Persistence Sorbent CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
topic |
Herbicida Lixiviação Persistência Poluente orgânico Sorvente Herbicide Leaching Organic pollutant Persistence Sorbent CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
description |
Biochar is a product rich in carbon produced from pyrolysis of organic materials in an environment with limited oxygen or anoxic conditions. The pyrolysis temperature of material has a direct influence on the properties of biochar and, consequently, on its potential for agricultural and environmental use. In this research, the biochar characteristics of eucalyptus wood residues produced at different pyrolysis temperatures and their relationship with the behavior of herbicide hexazinone in soil were evaluated. Initially, biochars were produced at temperatures of 450, 550, 650, 750, 850 and 950 °C on the hydrogen potential (pH value), electrical conductivity (EC), ash content, yield, volatile matter (VM) content, elemental analysis, Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction, scanning electron microscopy (SEM), specific surface area (SSA) and micropore volume (MV) (by N2 adsorption) of eucalyptus wood-derived biochar. In the second stage, sorption/desorption experiments were executed using the batch equilibrium method, leaching in glass columns and distribution in biometric flasks with biochars produced between temperatures of 650 to 950 °C. The results showed a positive correlation of pyrolysis temperature with pH value, EC and elemental carbon, and a negative correlation with yield, MV, oxygen, elemental hydrogen, SSA, H/C, O/C and (O+N)/C ratios. The Principal component analysis showed that the highest polarity index (O+N/C), ash content, and N/C ratio associated with a low H/C ratio were the characteristics that had the greatest influence on increasing sorption, promoting a reduction in leaching and availability of hexazinone. The biochars produced at 850 and 950 °C obtained the highest sorption, reducing leaching by more than 80% and hexazinone availability by more than 46%. The addition of biochar was efficient in decreasing the mobility and availability of hexazinone in the soil, reducing the risk of environmental contamination of this herbicide. However, the lowest available amount of hexazinone in the soil can reduce the effectiveness of weed control in field conditions |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-12-19 2020-08-31T23:28:05Z 2020-03-02 2020-08-31T23:28:05Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Citação com autor incluído no texto: Fernandes (2019) Citação com autor não incluído no texto: (FERNANDES, 2019) https://doi.org/10.21708/bdtd.ppgfito.tese.5411 https://repositorio.ufersa.edu.br/handle/prefix/5411 |
identifier_str_mv |
Citação com autor incluído no texto: Fernandes (2019) Citação com autor não incluído no texto: (FERNANDES, 2019) |
url |
https://doi.org/10.21708/bdtd.ppgfito.tese.5411 https://repositorio.ufersa.edu.br/handle/prefix/5411 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
FERNANDES, Bruno Caio Chaves. Characterization of eucalyptus wood-derived biochar and its effects on hexazinone behavior in soil. 2019. 70 f. Tese (Doutorado em Fitotecnia), Universidade Federal Rural do Semi-Árido, Mossoró, 2019. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess CC-BY-SA |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
CC-BY-SA |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido Brasil Centro de Ciências Agrárias - CCA UFERSA Programa de Pós-Graduação em Fitotecnia |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido Brasil Centro de Ciências Agrárias - CCA UFERSA Programa de Pós-Graduação em Fitotecnia |
dc.source.none.fl_str_mv |
reponame:Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
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Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
collection |
Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
repository.name.fl_str_mv |
Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
repositorio@ufersa.edu.br || admrepositorio@ufersa.edu.br |
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