Akademik Veri Yönetim Sistemi
1st Eurasia Environmental Chemistry Congress, Antalya, Türkiye, 1 - 04 Kasım 2018, ss.40
Water pollution is one of the most important environmental problems. Depletion and contamination of water resources pose a threat to human and aquatic life. Industries using paint like textile industry consumes a lot of water. For this reason, the elimination of water from dyes is of great importance. In this study, water was completely removed from the dye and the water has been tried to be reused. For this purpose, the aqueous solution of methylene blue was completely removed by photocatalytic method and the water was made usable again. TiO2 and ZnO were used as catalysts and two catalysts were compared. By comparing the catalysts used, it was researched which of the catalysts is more suitable for re-use. UV-C lamps were used as ultraviolet light source and the reaction was carried out in a specially designed reactor in the laboratory. Removal of Methylene Blue was measured with a spectrophotometer. After the reaction, the catalysts were separated from the water by filtration. From the operating parameters, the optimum water pH for the catalysts was first studied. At the end of 3 hours reaction, the efficiency of TiO2 was %100 at pH 2.5. Later, it was observed that there was no different pollution during the reaction by performing a minilization study. The spent catalysts on the filter papers were also examined along with the experimental results. TiO2 catalyst was found to provide much faster oxidation than the ZnO catalyst. With ZnO catalyst, much faster adsorption was achieved than with TiO2. The efficiency was higher when the TiO2 used both catalysts are sufficiently purified to reuse the water. TiO2 is more suitable for reuse.