Degradation of simulated organic wastewater by advanced oxidation with oxidants generated from oxygen reduction |
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Authors: | Yi Ouyang Qing Xu Yang Xiang Wei Liu Junqi Du |
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Affiliation: | 1.Beijing Key Laboratory of Membrane Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China;2.School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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Abstract: | The degradation capacity of advanced oxidants generated from oxygen reduction was investigated in model effluent containing chlorobenzene, aniline and benzene through the advanced oxidation processes (AOPs). Intermediate products of the degradation process were determined by GC–MS, and they contributed to specify the degradation pathways of monoaromatic compounds. The study particularly focused on the influence of the dosage of the oxidant, pH and the initial concentration of organic compounds on the degradation effectiveness. When the dosage of oxidant was 4 wt% and the pH was 7, the maximum degradation rates of 74.83% chlorobenzene, 70.32% aniline and 37.69% benzene were achieved. Furthermore, microwave was applied to intensify the oxidation process under optimal operation conditions, and the degradation rates were increased to 87.85% chlorobenzene, 89.11% aniline and 39.03% benzene, respectively. |
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Keywords: | Corresponding authors at: Beijing University of Chemical Technology No 15 Beisanhuan East Road Beijing P R China 100029 AOPs Degradation Advanced oxidants Monoaromatic compounds Microwave |
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