Volume 8 Issue 2
Apr.  2015
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Chun-wei YANG. 2015: Degradation of bisphenol A using electrochemical assistant Fe(Ⅱ)-activated peroxydisulfate process. Water Science and Engineering, 8(2): 139-144. doi: 10.1016/j.wse.2015.04.002
Citation: Chun-wei YANG. 2015: Degradation of bisphenol A using electrochemical assistant Fe(Ⅱ)-activated peroxydisulfate process. Water Science and Engineering, 8(2): 139-144. doi: 10.1016/j.wse.2015.04.002
shu

Degradation of bisphenol A using electrochemical assistant Fe(Ⅱ)-activated peroxydisulfate process

doi: 10.1016/j.wse.2015.04.002

  • College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, P. R. China

Funds:  This work was supported by the Natural Science Foundation of Jilin Province (Grant No. 20140101215JC), the Key Program in Science and Technologies of Jilin Province (Grant No. 20150204049SF), and the Key Laboratory of Industrial Ecology and Environmental Engineering, the Ministry of Education of China (Grant No. KLIEEE-13-07).
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  • Corresponding author: Chun-wei YANG
  • Received Date: 2013-10-22
  • Rev Recd Date: 2014-12-17
    Abstract
  • Degradation of bisphenol A (BPA) in aqueous solution using sulfate radicals was investigated using the Fe(Ⅱ)-activated peroxydisulfate (PDS) process, electrochemical process, electrochemical process with 2.5 mmol/L Na2S2O8 without Fe(Ⅱ), and electrochemical assistant Fe(Ⅱ)-activated PDS process. It was found that the electrochemical assistant Fe(Ⅱ)-activated PDS process performed best in the degradation of BPA. The variables considered to influence the degradation efficiency of BPA were the initial concentration of Fe2+, the initial concentration of Na2S2O8, and the current density. More than 97% of the BPA removals were achieved within 120 min under the optimum operational condition. The degradation of BPA was accompanied by the formation of phenol, hydroquinone, and small-molecule compounds such as succinic acid. The electron transfer was the principal step in the oxidation of BPA.

     

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