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Sonochemical and hydrodynamic cavitation reactors for laccase/hydrogen peroxide...
Gonçalves, Idalina; Martins, Madalena A.; Loureiro, A.; Gomes, A. C.; Paulo, Artur Cavaco; Silva, Carla ManuelaArticle in press ; The main goal of this work is to develop a novel and environmental-friendly technology for cotton bleaching with reduced processing costs. This work exploits a combined laccase–hydrogen peroxide process assisted by ultrasound. For this purpose, specific reactors were studied, namely ultrasonic power generator type K8 (850 kHz) and ultrasonic bath equipment Ultrasonic cleaner USC600TH (45 kHz...
Decolourization of paprika dye effluent with hydrogen peroxide produced by gluc...
Gonçalves, Idalina; Silva, Carla Manuela; Paulo, Artur CavacoHydrogen peroxide was produced from bran by a two-step process using cellulase/xylanase and glucose oxidase, sequentially. The decolourization efficiency of the produced reagent was tested using paprika oil dye (effluent from industrial source) and high levels of colour removal (96%) were achieved after saponification pre-treatment and hydrogen peroxide application. The method is economically and environmentall...
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