TY - JOUR ID - TI - Kinetics, Thermodynamic and Mechanism of Ultrasonic Degradation of Benzene in Aqueous Solution خصائص الثرموداینمك والحركیة باستخدام الموجات فوق الصوتیة من تحلیل محالیل البنزین المؤمن AU - Ismail K.Al-Khateeb AU - Adawiya J.Haider AU - Ahmed M. Mohammed PY - 2014 VL - 32 IS - 1 Part (A) Engineering SP - 34 EP - 45 JO - Engineering and Technology Journal مجلة الهندسة والتكنولوجيا SN - 16816900 24120758 AB - Ultrasonic technology, as an innovative technology,was used for degradation of benzene in an aqueous solution under ultrasound frequency of 20 kHz at different temperatures with initial concentration of 100 and 200 mg/L. Kinetic and thermodynamic of benzene degradation in aqueous solution were investigated.While the mechanism of benzene sonolysis was discussed. The degradation rate of benzene increased with increasing electric power, sonication time and by decreasing liquid volume, temperature and initial concentration of benzene. The beneficial effect of which power electrical or ultrasound on removal rates is believed to be due to increased cavitational activity occurring at higher levels ofpower. As power increases, the number of collapsing (effective) cavities also increases, which is leading to enhanced degradation rates. Thermodynamic parameters indicated that benzene degradation was spontaneous and exothermic in nature. The obtained data was fitted through the pseudo-first order model.

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