Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 3
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Effects of full-scale substrate pretreatment with a cross-flow grinder on biogas production CIGR Journal
Mönch-Tegeder, Matthias; Lemmer, Andreas; Jungbluth, Thomas; Oechsner, Hans.
The enhancement of the degradation rate of energy crops, agricultural residues and manure by different lab scale pretreatment pathways is shown in previous studies.  In general, the pretreatments resulted in higher degradation efficiencies and an increase in methane yield for lignocellulosic and fibrous biomass.  The major drawback of most of the different pretreatment methods is that either they are not feasible for application in practice or the high energy demand makes them economically inefficient.  The aim of this study was to evaluate the effects of a full-scale mechanical pretreatment with a cross-flow grinder on commonly used energy crops (maize silage, grass silage and rye grain silage) and horse manure. Furthermore, the optimal treatment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic digestion; Biogas production; Mechanical pretreatment; Lignocellulosic materials; Horse manure.
Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2927
Imagem não selecionada

Imprime registro no formato completo
Influence of novel lignocellulosic residues in a biobed biopurification system on the degradation of pesticides applied in repeatedly high doses Electron. J. Biotechnol.
Diez,M. Cristina; Tortella,Gonzalo R; Briceño,Gabriela; Castillo,Maria del Pilar; Díaz,Jorge; Palma,Graciela; Altamirano,Carolina; Calderón,Carolina; Rubilar,Olga.
Background: The biobed is a simple biopurification system used to prevent the point-source pesticide contamination that occurs at farm level. The typical composition of the biomixture used in this system is soil, peat and straw in volumetric proportions of 1:1:2. The principal component is straw due to its positive effects on biological activity and thus pesticide degradation. However, access to straw can be limited in some regions, so it must be replaced by other more readily available lignocellulosic residues. Results: Therefore, two alternate lignocellulosic materials (barley husks and pine sawdust) were evaluated as partial substitutes for straw. The degradation of a repeatedly applied mixture of six pesticides by these alternates was assessed. The...
Tipo: Journal article Palavras-chave: Biopurification system; Biomixture; Lignocellulosic materials; Pesticide degradation.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000600011
Imagem não selecionada

Imprime registro no formato completo
Compatibility of vegetable fibers with Portland cement and its relationship with the physical properties AGRIAMBI
Marques,Maria L.; Luzardo,Francisco H. M.; Velasco,Fermin G.; González,Luis Nieto; Silva,Everton J. da; Lima,Wellington G. de.
ABSTRACT The use of vegetable fiber residue in cementitious matrices can be a sustainable technological alternative; however, it still has problems related to the chemical compatibility between the cement and the fibers. The present study evaluated the compatibility of vegetable fibers with cement using three methods of calculation and determined certain physical properties of the fibers and the curve of the temporal evolution of temperature for each composite. The surfaces of the composites were evaluated through atomic force microscope images and the results showed that the pretreatment of fiber washing significantly favors the compatibility with cement for fibers of eucalyptus, coconut and cocoa, with no influence for water hyacinth fiber. Bivariate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aptness; Composite; Lignocellulosic materials; Hydration.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000500466
Registros recuperados: 3
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional