Degradation of dye containing in textile wastewater by sequential process: photocatalytic and biological treatment

In this research, a combined photocatalytic and biological treatment is proposed for the elimination of pollutants present in textile wastewater using natural erionite zeolite (PE) aluminum oxide (PA) synthesized by sol-gel method as photocatalysts, solar radiation. Both catalysts were characterized XRD, SEM, EDS. For two bacterial consortium used: BC1 (Escherichia coli N16, Serratia k120, Pseudomonas putida B03 Enterobacter hormaechei), BC2 Mc107, N9, hormaechei Mc9). The microbiological treatments carried out initially separately subsequently sequential manner, first followed to determine if synergistic effect was achieved. Comparing performance, showed higher performance dyes degradation (54.75%) than alumina (28.62%). While process, decreased dye concentration 56.93% 53.56%. Finally, best process PA+BC1 reaching 64.62%, showing that application both processes promotes decolorization wastewater. water resulting from photocatalysis-microbiological tested toxicity Daphnia magna, obtaining none effluents shows toxicity.