[The relative importance of different oxidants in the degradation process of quinoline using O3/UV].
In this paper the relative importance of different oxidants in the degradation process of quinoline using O3/UV was studied. O3 and .OH played the most important roles in removing quinoline. Their concentrations were measured using indigo method and .OH-probe compound (p-CBA) method respectively, and the relative importance of these two oxidants was quantitatively determined. The second-order reaction rate constant between quinoline and hydroxyl radical was calculated as 6.65 x 10(9) mol.(L.s)-1. In the present experimental condition, .OH and O3 oxidations contributing to the total degradation rate of quinoline were 88% and 12% respectively. Increasing the hydroxyl radical concentration will help to improve the total removal rate of quinoline.
Wang
Xiaomao
X
Environment Simulation and Pollution Control State Key Joint Laboratory, Dept. of Environ. Sci. & Eng., Tsinghua University, Beijing 100084, China.
Huang
Xia
X
Hu
Hongying
H
D017665:Hydroxyl Radical; D016877:Oxidants / Q000737:chemistry*; D010126:Ozone / Q000737:chemistry*; D010782:Photolysis; D011804:Quinolines / Q000737:chemistry*; D014466:Ultraviolet Rays
D016877:Oxidants; D011804:Quinolines; D017665:Hydroxyl Radical; D010126:Ozone; C037219:quinoline