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Denise Maria Malachini Miotto, Nádia Regina Camargo Fernandes Machado (Author)
Pág. 1627 - 1635
In this work, the adsorption capacity of modified zeolites, CaX and MgX, was evaluated in contact with a by-product solution of the stevioside extraction process, a sweetener extracted from Stevia rebaudiana leaves. The effects of adsorption process in t...
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Veronice Slusarski Santana, Nádia Regina Camargo Fernandes Machado (Author)
Pág. 1681 - 1686
This research aims to work with photocatalysis as an alternative in the treatment of textile wastewater, because of the unsatisfactory degradation of some dyes by the conventional biological methods. Photocatalytic degradation tests were done in three na...
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Elida de Paula Moraes, Nádia Regina Camargo Fernandes Machado (Author)
Pág. 1375 - 1380
Selective adsorption on zeolites X and A was studied with Stevia rebaudiana (Bert.) Bertoni (Asteraceae) extract clarification. Ionic exchanges were made with calcium and barium ions in zeolites NaX and NaA and the effect of contact of aqueous extract of...
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Classius Ferreira da Silva, Carla Kazumi Carrascoza Yoshida, Nádia Regina Camargo Fernandes Machado, Francisco Maugeri Filho (Author)
Pág. 769 - 772
The isopropanol decomposition is used as a model reaction for determining the acid or basic characteristics of zeolites, specially zeolites of the type Y due to the facility of decomposition in both sites. The acid sites produce water and propene, while ...
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