ESTUDO DA TOXICIDADE DE EFLUENTE TêXTIL TRATADO POR FOTO-FENTON ARTIFICIAL UTILIZANDO AS ESPéCIES LACTUCA SATIVA E ARTEMIA SALINA

In this paper, the toxicity of textile wastewater, treated by photo-Fenton process with artificialirradiation using lettuce (Lactuca sativa) and brine shrimp (Artemia Salina) as test organisms was analyzed.Effluent aliquots were taken at the treatment times of 0, 5, 10, 15, 45, 60 and 90 minutes for toxicity, chemicaloxygen demand (COD), color and turbidity analysis. During the toxicity experiment were determined theinhibition of growth of lettuce roots and rootlets, the effect on seed germination and the effect on mortalityof brine shrimp, beyond the lethal concentration (LD50) for each species. Analyzing the results, was observedthat photo-Fenton treatment with artificial UV irradiation did not reduced the textile effluent toxicity;however, COD, color and turbidity reductions above 90% were observed in the first 45min of irradiation.