Estudo Preliminar da eficiência de Mineralização de chorume aplicando Foto-Fenton em reator tubular

Abstract

For many years in Brazil, the waste had as final destination open dumps, causing different types of contamination. However with the law 12.305/2010 the final destination of waste is recommended to landfills, listed as the most viable technique, socially, economically and environmentally. The excretion of microorganisms that decompose waste in this system generates a complex and toxic compound called slurry. The present work sought to understand how is the leachate treatment in Brazil, to study the application of the advanced photo-Fenton oxidative process in the leachate of the Sanitary Landfill of the metropolitan region of Natal and to evaluate the photolytic performance of the tubular photochemical reactor applied in the treatment of complex effluents. For this purpose, experiments were carried out in the treatment of slurry, actinometry that determines the amount of photons per second absorbed in the experiment and qualitative research on the subject. With the studies it was noted that the treatments currently applied in Brazil for slurry are not efficient and that there is a need for new treatment techniques. As for the experiments, it was noticed that the photo-Fenton is a promising technique for the treatment of slurry, with maximum organic load reduction of approximately 45%, but it still needs to be improved to make the application viable. As for actinometry, it was obtained the rate of photon incidence variation Po of 3.02E+18 photons/s, besides showing that the photon incidence is a consequence of the disposition of the lamps and the material used in the reactor, being the reactor studied a good alternative for democratization of studies in the area.