Photolysis of methylene blue dye in batch reactors: Influence of the area exposed to artificial UV radiation Andressa Cristina de Mattos Bezerra, Greice Hellen de Novaes Barbalho, Jehanne Teixeira, Paula Marques Pestana, Karina Tamião de Campos Roseno

Abstract

Since water is the greatest good on the planet, the concerns about it are greater, and unfortunately the contamination of the water is not only due to the lack of treatment of thesewages, but also by the garbage that is thrown into these by the incorrect disposal of medicines, dyes, among others. To solve problems of liquid effluents without harming the environment, new methods are being sought, such as Advanced Oxidative Processes (POAs), which degrade existing contaminants through the generation of hydroxyl OH- radicals. The use of photolysis in a batch reactor model to degrade methylene blue dye, which is used in largescale in the textile industry, had its highest rate of degradation of 34.18% in two hours, which depended on the position of the reactor in relation to UV radiation.