期刊
RADIATION PHYSICS AND CHEMISTRY
卷 105, 期 -, 页码 104-108出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2014.05.019
关键词
Diclofenac; Electron beam; Biological aerated filter (BAF); Toxicity
资金
- National High Technology Research and Development Program [2009AA063905]
- International Scientific Cooperation Project [2011DFR00110]
- IAEA Technical Cooperation Project [CPR1008]
- Coordinated Research Project [16428]
The degradation of DCF was investigated in aqueous solution by using electron beam (EB) technology. When the initial concentration was between 10 and 40 mg/L, almost 100% of the DCF was degraded at a dose of 0.5 kGy. However, only about 6.5% of DCF was mineralized even at 2 kGy according to total organic carbon (TOC) measurements. A combined process of EB and biological aerated filter (BAF) was therefore developed to enhance the treatment of DCF contaminated surface water. The effluent quality of combined process was substantially improved by EB pretreatment due to the degradation of DCF and related intermediates. Both irradiation and biological treatment reduced the toxicity of the treated water. The experimental results showed that EB is effective for removing DCF from artificial aqueous solution and real surface water. (C) 2014 Elsevier Ltd. All rights reserved.
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