Treatment of pharmaceutical wastewater containing clofibric acid by electron beam irradiation

  • Wenyan ShiEmail author
  • Shuting Ji
  • Qin Xu
  • Xin Duan
  • Zijuan Song
  • Gang Xu


In this study, clofibric acid (CA) degraded by the electron beam (EB) irradiation was investigated at CA initial concentration of 10 mg L−1. Results showed that more than 90% CA degradation is achieved at 0.5 kGy. The acid conditions (pH 3.00) and the addition of N2 remarkably improved the CA degradation efficiency. The addition of CO32−, HCO3 anions and H2O2 reduced the CA degradation efficiency. It showed that ·H had a primary role to play in the EB degradation of CA. The determination of byproducts showed hydrosilylation reaction of CA molecules. The byproducts were clofibric acid, chlorophenol, phenol, hydroquinone, benzoquinone and dihydroxybenzene. These results suggested that electron beam irradiation (EBI) can be used to eliminate CA.


Clofibric acid Hydrogen radicals Electron beam irradiation Degradation Radiolysis Toxicity 



This work was supported by the National Natural Science Foundation of China (Nos. 11775138, 11675098 and 41473089), Innovation Program of Shanghai Municipal Education Commission (No. 13YZ017) and Program for Changjiang Scholars and Innovative Research Team in University (No. IRT13078).


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  • Wenyan Shi
    • 1
    Email author
  • Shuting Ji
    • 1
  • Qin Xu
    • 1
  • Xin Duan
    • 1
  • Zijuan Song
    • 1
  • Gang Xu
    • 1
  1. 1.School of Environmental and Chemical EngineeringShanghai UniversityShanghaiPeople’s Republic of China

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