WOOD QUALITY EFFECT ON KRAFT PULPING PERFORMANCE

Detalhes bibliográficos
Autor(a) principal: Carvalho, Danila Morais de
Data de Publicação: 2014
Outros Autores: Silva, Marcelo Rodrigues da, Colodette, Jorge Luiz
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência Florestal (Online)
Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/2957
Resumo: http://dx.doi.org/10.5902/1980509815724This article seeks to discuss the results with the survey that sought to identify, by means of indicators and social-economical information, if the exploitation of baru nut (Dipteryx alata Vogel) – a Brazilian species from the savannah – carried out by the private sector (companies, cooperatives and representatives organizations of family farmer), established in municipalities in Goiás state and in the Federal District, which represents a sustainable alternative to generate income. This study measured the environmental, social, economic, political, and health dimensions of sustainability by using indicators. This study also searched identify the obstacles faced by organizations in the production chain of baru nut and proposed a production model for this nut of Cerrado. The results showed that under current circumstances, the extraction of baru nut by the sampled organizations is not a sustainable activity to generate income once it supports partially the premise that a sustainable activity must be a balance among the dimensions mentioned above. The obstacles that the baru nut chain has today can be a powerful one, not only to manage the chain itself but also to compromise the whole sustainability of this activity.
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spelling WOOD QUALITY EFFECT ON KRAFT PULPING PERFORMANCEEFEITO DA QUALIDADE DA MADEIRA NO DESEMPENHO DA POLPAÇÃO KRAFTBaruproduction chainsustainabilityforest extraction.Eucalyptusqualidade da madeiragrau de deslignificaçãocondições de polpação krafthttp://dx.doi.org/10.5902/1980509815724This article seeks to discuss the results with the survey that sought to identify, by means of indicators and social-economical information, if the exploitation of baru nut (Dipteryx alata Vogel) – a Brazilian species from the savannah – carried out by the private sector (companies, cooperatives and representatives organizations of family farmer), established in municipalities in Goiás state and in the Federal District, which represents a sustainable alternative to generate income. This study measured the environmental, social, economic, political, and health dimensions of sustainability by using indicators. This study also searched identify the obstacles faced by organizations in the production chain of baru nut and proposed a production model for this nut of Cerrado. The results showed that under current circumstances, the extraction of baru nut by the sampled organizations is not a sustainable activity to generate income once it supports partially the premise that a sustainable activity must be a balance among the dimensions mentioned above. The obstacles that the baru nut chain has today can be a powerful one, not only to manage the chain itself but also to compromise the whole sustainability of this activity.http://dx.doi.org/10.5902/1980509815724O objetivo do estudo foi avaliar o efeito da qualidade de madeiras de eucalipto no desempenho da polpação kraft sob duas diferentes condições de polpação e em dois níveis de deslignificação, baseando-se no rendimento, alvura, viscosidade e índice k/kappa corrigido das polpas produzidas. As madeiras de eucalipto (A, B e C), foram analisadas quanto às suas propriedades físico-químicas (densidades básica e aparente, teor de ligninas insolúvel e solúvel, teor de extrativos, cinzas e cinzas insolúveis em ácido clorídrico) e utilizadas para a produção de polpa celulósica por meio do cozimento kraft modificado, utilizando duas condições de polpação, sendo elas: Condição I (PI) - álcali efetivo de 16,5%, sulfidez de 30% e temperatura de cozimento de 155ºC; e Condição II (PII) - álcali efetivo de 17,5%, sulfidez de 32% e temperatura de cozimento de 147ºC. Ambos os cozimentos foram realizados buscando-se no número kappa de 15,5 ± 0,5 e de 18,0 ± 0,5. Foram avaliados os seguintes parâmetros de polpação e propriedades das polpas produzidas: fator H, rendimento depurado, viscosidade, alvura, conteúdo de ácidos hexenurônicos e o índice k/kappa corrigido. A madeira A, que apresentou menores teores de extrativos e lignina em sua constituição, bem como menores densidades básica e aparente quando comparada com as madeiras B e C, apresentou os melhores resultados para os parâmetros de cozimento avaliados, com destaque para a polpa produzida pela condição de cozimento PII com o número kappa de (18,0 ± 0,5), que apresentou maior rendimento, alvura e viscosidade dentre todas as polpas produzidas. Polpas produzidas com maior número kappa apresentam menores índices k/kappa corrigidos.Universidade Federal de Santa Maria2014-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/295710.5902/1980509815724Ciência Florestal; Vol. 24 No. 3 (2014); 677-684Ciência Florestal; v. 24 n. 3 (2014); 677-6841980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/2957/pdfCarvalho, Danila Morais deSilva, Marcelo Rodrigues daColodette, Jorge Luizinfo:eu-repo/semantics/openAccess2017-04-12T19:14:31Zoai:ojs.pkp.sfu.ca:article/15724Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-04-12T19:14:31Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv WOOD QUALITY EFFECT ON KRAFT PULPING PERFORMANCE
EFEITO DA QUALIDADE DA MADEIRA NO DESEMPENHO DA POLPAÇÃO KRAFT
title WOOD QUALITY EFFECT ON KRAFT PULPING PERFORMANCE
spellingShingle WOOD QUALITY EFFECT ON KRAFT PULPING PERFORMANCE
Carvalho, Danila Morais de
Baru
production chain
sustainability
forest extraction.
Eucalyptus
qualidade da madeira
grau de deslignificação
condições de polpação kraft
title_short WOOD QUALITY EFFECT ON KRAFT PULPING PERFORMANCE
title_full WOOD QUALITY EFFECT ON KRAFT PULPING PERFORMANCE
title_fullStr WOOD QUALITY EFFECT ON KRAFT PULPING PERFORMANCE
title_full_unstemmed WOOD QUALITY EFFECT ON KRAFT PULPING PERFORMANCE
title_sort WOOD QUALITY EFFECT ON KRAFT PULPING PERFORMANCE
author Carvalho, Danila Morais de
author_facet Carvalho, Danila Morais de
Silva, Marcelo Rodrigues da
Colodette, Jorge Luiz
author_role author
author2 Silva, Marcelo Rodrigues da
Colodette, Jorge Luiz
author2_role author
author
dc.contributor.author.fl_str_mv Carvalho, Danila Morais de
Silva, Marcelo Rodrigues da
Colodette, Jorge Luiz
dc.subject.por.fl_str_mv Baru
production chain
sustainability
forest extraction.
Eucalyptus
qualidade da madeira
grau de deslignificação
condições de polpação kraft
topic Baru
production chain
sustainability
forest extraction.
Eucalyptus
qualidade da madeira
grau de deslignificação
condições de polpação kraft
description http://dx.doi.org/10.5902/1980509815724This article seeks to discuss the results with the survey that sought to identify, by means of indicators and social-economical information, if the exploitation of baru nut (Dipteryx alata Vogel) – a Brazilian species from the savannah – carried out by the private sector (companies, cooperatives and representatives organizations of family farmer), established in municipalities in Goiás state and in the Federal District, which represents a sustainable alternative to generate income. This study measured the environmental, social, economic, political, and health dimensions of sustainability by using indicators. This study also searched identify the obstacles faced by organizations in the production chain of baru nut and proposed a production model for this nut of Cerrado. The results showed that under current circumstances, the extraction of baru nut by the sampled organizations is not a sustainable activity to generate income once it supports partially the premise that a sustainable activity must be a balance among the dimensions mentioned above. The obstacles that the baru nut chain has today can be a powerful one, not only to manage the chain itself but also to compromise the whole sustainability of this activity.
publishDate 2014
dc.date.none.fl_str_mv 2014-09-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/2957
10.5902/1980509815724
url https://periodicos.ufsm.br/cienciaflorestal/article/view/2957
identifier_str_mv 10.5902/1980509815724
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/2957/pdf
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Florestal; Vol. 24 No. 3 (2014); 677-684
Ciência Florestal; v. 24 n. 3 (2014); 677-684
1980-5098
0103-9954
reponame:Ciência Florestal (Online)
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Florestal (Online)
collection Ciência Florestal (Online)
repository.name.fl_str_mv Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv ||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br
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