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최명찬,장민,강경림,김덕민,김승섭,김지형 한국방재학회 2013 한국방재학회논문집 Vol.13 No.6
The kinetic constant of diethyl phthalate (DEP) oxidized by ultrasound was measured as a function of ultrasound power density,Cl- concentration and solution temperature. The ultrasonic oxidation kinetic of DEP could be described by the pseudo-first-orderreaction d[DEP]/dt = -kCDEP, where k (min-1) was identified using Box-Behnken Design coupled with Response SurfaceMethodology. The final equation for describing the kinetic constant k is as follows: Analysis of variance (ANOVA) tests showedthat the second-order polynomial regression model could properly interpret the experimental data with a high determinationcoefficient (R2, 0.998). The P-value of the model was 0.0001 which is less than 0.05, implying that the model is significant. Besides, the response surface showed that ultrasound power density gave much more effect than another two factors (temperatureand Cl- ion concentration), which provides a possible evidence for the future design.