Catalytic deterioration of trace pollutants of aniline by ultrasonic
Subject Areas : Chemistry and Chemical Engineering of all specializations
Keywords: Ultrasonic, Aniline, H2O2, advanced oxidation processes, catalytic,
Abstract :
Aniline is considerably used in rubber and tyre industry. Also, it is a starting material for producing chemicals as dyes, pigments, antioxidants, explosives and drugs. This has resulted some environmental pollution. It can contaminate the surface and underground water resources. Due to high toxicity of aniline itself and its produced side materials in wastewater and waters, it is considered as a great threat to human health. In this research work, we have investigated its deterioration using H2O2, nano TiO2 catalyst and sonification. Sono chemical experiments were carried out using ultrasonic wave generator machine (400w) in 24 kHz. Moreover, the effects of factors such as pH and initial density of aniline were studied. In this study the maximum efficiency of aniline omission was obtained 59.83% in 100 kilohertz frequency, 120 minute of contact time, pH of 6.68 and aniline initial concentration of 40 ppm. Results obtained from this investigation indicated that US/H2O2 process has higher efficiency in removing AN from watery liquids. Moreover, using this method, aniline deteriorating efficiency has no direct relationship with pH, ultrasonic frequency, H2O2 concentration and its initial concentration
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