STUDY ON USING SYTHETIC CATALYTIC NANOMATERIAL OF TiO2/ZrO2 IN THE ADVANCED OXIDATION PROCESS OF OZONATION FOR REMOVING ACID ORANGE 7

Abstract

According to the industrialized development, environmental pollution is increased day by day especially wastewater pollution problems. In there, wastewater
companied to dis-biodegradable organic compounds such as dyes is interested due to they are toxic and persistent organic compounds in water environment and used
with the amount of dyes in textile industry. The advanced oxidation technology has been appreciated by powerful oxidation capacity for dyes. The advanced oxidation
process of ozonation and synthetic nanomaterial TiO2/ZrO2 for removing acid orange 7 (AO7) obtained preliminary high efficiency. Results showed that using synthetic
nanomaterial of TiO2/ZrO2 at 200ppm, pH 3 get the best for removal efficiency, detailed as, removal efficiency of AO7 got 95% after 15 minutes of experiments with
initial AO7 concentration of 175ppm, with initial AO7 concentration of 350ppm get 99% of removal efficiency after 18 minutes, with initial AO7 concentration of
550ppm get 95% after 30 minutes of experiments with continuous stream mode and initial O2 flow rate of 0.5L/minute for experiments. Besides, conditions at pH 7,
pH 10 and different AO7 concentration (175ppm, 350ppm, 550ppm), removal efficiency of AO7 versus by time has been evaluated the removal capacity by the
advanced oxidation process using O3 and synthetic nanomaterial of TiO2/ZrO2 with different initial concentration. The obtained results recorded that treatment kinetics
of AO7 in experiments followed by the pseudo first order reaction with high reliability.