| Title |
Treatment of Aqueous Phenol by H2O2 and O3/UV |
| Authors |
신진환 ( Jin Hwan Shin ) ; 정영도 ( Young Do Jeoung ) ; 연익준 ( Ik Jun Yeon ) |
| Abstract |
Laboratory experiments were performed to investigate oxidation system using ozone and hydrogen peroxide for treating water contaminated with phenol. We were able to greatly improve the oxidation efficiency of the aqueous phenol using hydrogen peroxide and ozone. Two methods were compared and analyzed in this study. In the consequence through the methods, we concluded that the O₃/UV is superior to the hydrogen the results. The decomposition efficiency of aqueous phenol by H₂O₂. was exceeded at 83.3% in the concentration of phenol, 5, 15, 25 ppm, respectively. The rate of decomposition reaction by H₂O₂. was very slow. In the occasion of the fractional life, it was determined the value that 1.61×10^(-5)(1/mol)^(1.172)sec^(-1), 3.75×10^(-5)(I/mol)^(0.792)sec^(-1), 4.11×10^(-5)(1/mol)^(1.782)sec^(-1). The rate of decomposition reaction of aqueous phenol by O₃ was fast compared to the H₂O₂. We concluded that the O₃ method is useful with the consideration of the reaction time 30 minutes. In the occasion of the fractional life, it was determined the value that 1.094×10^(-4)(1/mol)^(0.933)sec^(-1), 2.1×10^(-4)(1/mol)^(0.842)sec^(-1), 7.22×10^(-4)(l/mol)^(1.332)sec^(-1). |