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Operating parameters and synergistic effects of combining ultrasound and ultraviolet irradiation in the degradation of 2,4,6-trichlorophenol

Anthony Joseph, Collin Glen Joseph and Puma, Gianluca Li and Bono, Awang and Yap, Taufiq Yun Hin and Krishnaiah, Duduku (2011) Operating parameters and synergistic effects of combining ultrasound and ultraviolet irradiation in the degradation of 2,4,6-trichlorophenol. Desalination, 276 (1-3). pp. 303-309. ISSN 0011-9164; ESSN: 1873-4464

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Abstract

The sonophotodegradation of 2,4,6-trichlorophenol (TCP) in a homogeneous aqueous system was investigated. The effectiveness of sonolytic, photolytic and sonophotolytic oxidation processes in the degradation of aqueous solutions of TCP was investigated by applying ultrasonic waves or ultraviolet radiation or a combination of these two techniques. The optimum operating parameters for the horn-type sonicator and the UV-A lamp were determined along with the effect of temperature on the TCP degradation. It was found that an increase in acoustic intensity and UV lamp intensity was proportional to an increased efficiency of the sonolytic and photolytic degradation of TCP. However, an increase in the solution temperature caused the TCP to evaporate resulting in the first-order kinetic rate showing the presence of a synergistic effect at temperatures between 10 °C and 20 °C, an additive effect at a temperature of 30 °C and an antagonistic effect at temperatures of 40 °C and higher.

Item Type:Article
Keyword:Photolysis; Sonolysis; Sonophotolysis; 2,4,6-trichlorophenol
Faculty or Institute:Faculty of Science
Publisher:Elsevier
DOI Number:10.1016/j.desal.2011.03.068
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.desal.2011.03.068
ID Code:24842
Deposited By: Nur Farahin Ramli
Deposited On:28 Aug 2013 09:56
Last Modified:25 Nov 2016 12:37

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