Degradation of chlorophenols in aqueous solution by γ-radiation |
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| Affiliation: | 1. Hungarian Academy of Sciences, Institute of Isotopes, Budapest, Hungary;2. Hungarian Academy of Sciences, Institute of Isotopes, Budapest, Hungary;1. Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China;2. Key Laboratory of Advanced Reactor Engineering and Safety, Ministry of Education, Tsinghua University, Beijing 100084, PR China;1. School of Water Resources and Environment, China University of Geosciences, Beijing 100083, PR China;2. Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing 100084, PR China;3. Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China;1. Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing 100084, PR China;2. Beijing Key Laboratory of Radioactive Waste Treatment, Tsinghua University, Beijing 100084, PR China;3. State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, PR China;1. Proambiente s.c.r.l., 101, via P. Gobetti, 40129 Bologna, Italy;2. Consiglio Nazionale delle Ricerche (CNR), Istituto per la Sintesi Organica e la Fotoreattività (ISOF), 101, via P. Gobetti, 40129 Bologna, Italy;1. Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari 61100, Pakistan;2. Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan;3. Petroleum and Chemical Engineering Department, Faculty of Engineering, Sultan Qaboos University, Muscat, Oman;4. Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan;1. Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing 100084, PR China;2. School of Environment, Tsinghua University, Beijing 100084, PR China;3. Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China;4. Jiangsu Dasheng Electron Accelerator Device Co., Ltd. Suzhou, Jiangsu 215214, PR China |
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| Abstract: | Degradation of chlorophenols (CPs) in aqueous solutions by γ-radiation was studied. The effect of absorbed dose on degradation, dechlorination and mineralization of CPs were investigated. The results indicated that the degradation of CPs, Cl− release and mineralization increased with increase in absorbed dose. When the initial concentration was 100 mg L−1 and the dosage was 6 kGy, the removal efficiencies of CPs were 44.54% for 2-CP, 91.46% for 3-CP, 82.72% for 4-CP and 93.25% for 2,4-DCP, respectively. The combination of irradiation and H2O2 leads to a synergistic effect, which remarkably increased the degradation efficiency of CPs and TOC removal. The kinetics of CPs during irradiation are also mentioned. |
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