3 documents found, page 1 of 1
Modulando a partição de corantes em sistemas aquosos bifásicos por meio de inte...
Penido, Jussara AlvesPrograma de Pós-Graduação em Química. Departamento de Química, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto.; Nesse trabalho, sistemas aquosos bifásicos (SABs) foram empregados para separar dois corantes modelo, amarelo ouro remazol (AR) e azul de metileno (AM), usando o surfactante brometo de hexadeciltrimetilamônio (C16TAB) como modulador seletivo na partição. Experimentos env...
Use of aqueous two-phase PEG-salt systems for the removal of anionic surfactant...
Murari, Gabriella Frade; Penido, Jussara Alves; Silva, Heriveltom Morais da; Baeta, Bruno Eduardo Lobo; Aquino, Sergio Francisco deLinear alkylbenzene sulfonates (LAS) are synthetic anionic surfactants that are extensively used in many industries. As a result, large volumes of effluents containing high levels of these compounds are discharged into water bodies, causing risks to aquatic flora and fauna. Then, there is a need for environmentally safe and economically viable technologies for the removal of LAS from aqueous matrices. The prese...
A method for dye extraction using an aqueous two-phase system : effect of co-oc...
Borges, Gabriella Alexandre; Silva, Luciana Pereira; Penido, Jussara Alves; Lemos, Leandro Rodrigues de; Mageste, Aparecida BarbosaThis paper reports a green and efficient procedure for extraction of the dyes Malachite Green (MG), Methylene Blue (MB), and Reactive Red 195 (RR) using an aqueous two-phase system (ATPS). An ATPS consists mainly of water, together with polymer and salt, and does not employ any organic solvent. The extraction efficiency was evaluated by means of the partition coefficients (K) and residual percentages (% R) of t...