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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 ...
Recuperação de cério e lantânio lixiviados de fosfogesso por adsorção utilizando resíduos de uva
(Universidade Federal de Santa Maria, 2023-08-25)
Phosphogypsum is a byproduct of the fertilizer industry with a high environmental impact,
formed during the production of phosphoric acid from phosphate rock. It mainly comprises
gypsum and may contain impurities, including ...
Adsorção de fenol por biocarvão de Eucalyptus saligna ativado com NiCl2.6H2O
(Universidade Federal de Santa Maria, 2023-11-30)
The treatment of formation water still represents one of the greatest challenges in the oil
industry. Among the various pollutants found in produced water, phenol is of particular
concern, due to its high toxicity. The ...
Produção de nanofibras compostas de CuO para remoção de chumbo (II) de soluções aquosas
(Universidade Federal de Santa Maria, 2024-02-23)
Water contamination by heavy metals such as lead is a major concern due to the potential health hazards associated with exposure to this metal. In this context, the main objective of this study was the development of ...
Síntese de uma espuma composta de poliuretano/quitosana para adsorção do corante vermelho n° 40 em batelada e leito fixo
(Universidade Federal de Santa Maria, 2019-02-18)
Polyurethane foams (PU) may be used as the immobilization matrix for chitosan, in order to overcome/minimize the disadvantages with respect to chitosan as an adsorbent. However, the polyurethane and chitosan foams synthesized ...