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Produção e caracterização de nano sílica modificada obtida de casca de arroz para a utilização como adsorvente de corantes
(Universidade Federal de Santa Maria, 2018-01-15)
The large generation of agro-industrial wastes around the world requires the search for alternatives to use these materials. Among the materials, rice husks are used in large scale in the industrial sector for energy ...
Pré-tratamento de casca de arroz utilizando líquido iônico [C16MIM][Br]
(Universidade Federal de Santa Maria, 2019-08-05)
Rice husk, an agricultural residue, is a cellulose rich material which present potential to produce second generation ethanol, however, due its recalcitrant structure related to the presence of lignin and silica, a ...
Pré-tratamento de casca de arroz utilizando solventes eutéticos (CLC: glicerol e CLC: ureia) e hidrólise subcrítica visando à obtenção de açúcares
(Universidade Federal de Santa Maria, 2021-05-04)
In this research, the rice husks were submitted to pretreatments with deep eutectic
solvents in order to enrich the cellulose content and reduce the lignin contents. Four
mixtures of deep eutectic solvents were evaluated, ...
Modificações na casca de arroz para a adsorção de azul de metileno em batelada e leito fixo
(Universidade Federal de Santa Maria, 2016-08-12)
In this work, rice husk and its modifications were investigated as methylene blue adsorbents, using discontinuous (batch) and continuous (fixed bed) adsorption operations. The rice husk was modified through alternative ...