Abstract: The destruction of toxic organic molecules using advanced oxidation process (AOPs) is a potent tool for pollution control and environmental protection. Ultrasound is a convenient and effective method of generating hydroxyl radicals which is the key oxidant in AOPs. In the present study an attempt was made to bring decontamination of aniline through sonodegradation, specifically at 350 HZ and 620 HZ in the pH range 4-10.The degradation profile was traced through estimation of aniline by diazocoupling reaction and also through HPLC. Sonodegradation at 620 HZ was found to be more effective than that at 350 HZ .Percentage degradation of aniline was found to be maximum at pH 4 and 7.Sonodegradation could bring down the concentration of aniline to a minimum value but could not effect complete removal. Combination of the process of sonodegradation with other techniques such as biodegradation is necessary to completely eliminate the aniline residues.
Keywords: Advanced oxidation process, sonodegradation,, aniline removal , pH , Diazo coupling method, HPLC
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