Buscar
Mostrando ítems 21-30 de 223
Degradação de corantes ácidos por processos oxidativos avançados usando um reator com disco rotatório de baixa velocidade
(Sociedade Brasileira de Química, 2008)
Three technologies were tested (TiO2/UV, H2O2/UV, and TiO2/H2O2/UV) for the degradation and color removal of a 25 mg L-1 mixture of three acid dyes: Blue 9, Red 18, and Yellow 23. A low speed rotating disc reactor (20 rpm) ...
Síntesis de colorantes biodegradables a partir de la cochinilla roja (dactylopius coccus), col morada (brassica oleracea var. Capitata f. Rubra) y de la flor de retama (retama sphaerocarpa l.) Para el teñido de fibras de algodón.
(Universidad de Guayaquil, Facultad de Ingeniería Química., 2019-04)
En el presente trabajo se estudió la extracción de diferentes tipos de pigmentos con el objetivo de obtener los colorantes básicos de origen natural como son: amarillo, azul y rojo a partir de la flor de retama (luteolina), ...
Development Of Colors With Sustainability: A Comparative Study Between Dyeing Of Cotton With Reactive And Vat Dyestuffs
(SAGE Publications Ltd, 2014)
Use of Nafion (R) membranes for the construction of optical sensors for pH measurements
(Soc Brasileira QuimicaSao PauloBrasil, 2005)
Adsorptive features of magnetic activated carbons prepared by a one-step process towards brilliant blue dye
(Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2023)
Cellulose Microfibres Obtained from Agro-Industrial Tara Waste for Dye Adsorption in Water
(SpringerCH, 2020)
Microfibres of cellulose were extracted from tara residues (TR), obtained after the production process, and used to remove dyes in aqueous solution. Caesalpinia spinosa (Molina) Kuntze or Tara spinosa, commonly known as ...
Use of red mud activated at different temperatures as a low cost adsorbent of reactive dyeUso de lama vermelha ativada em diferentes temperaturas como um adsorvente de baixo custo de corante reativo
(2021-01-01)
Red mud, a waste product generated during alumina extraction from bauxite, could be used as a low-cost adsorbent. Here, the effect of thermal treatment on the adsorption of Reactive Blue 19 (RB19) dye by red mud was compared ...
Removal of the direct navy-blue dye on modified coffee beanRemoción del colorante azul marino directo sobre borra de café modificada
(Corporación Universidad de la Costa, 2021)