Journal of Zhejiang University-SCIENCE A

, Volume 5, Issue 2, pp 198–205 | Cite as

Degradation kinetics and mechanisms of phenol in photo-Fenton process

  • HE Feng
  • Lei Le-cheng
Bioscience & Biotechnology


Phenol degradation in photochemically enhanced Fenton process was investigated in this work. UV-VIS spectra of phenol degradation showed the difference between photo-Fenton process and UV/H2O2, which is a typical hydroxyl radical process. A possible pathway diagram for phenol degradation in photo-Fenton process was proposed, and a mathematical model for chemical oxygen demand (COD) removal was developed. Operating parameters such as dosage of H2O2 and ferrous ions, pH, suitable carrier gas were found to impact the removal of COD significantly. The results and analysis of kinetic parameters calculated from the kinetic model showed that complex degradation of phenol was the main pathway for removal of COD; while hydroxyl radicals acted weakly in the photo-Fenton degradation of phenol.

Key words

Phenol Photo-Fenton process Kinetics Radical oxidation Complex oxidation 

Document code

CLC number

TQ150.9 X783 


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Copyright information

© Zhejiang University Press 2004

Authors and Affiliations

  • HE Feng
    • 1
  • Lei Le-cheng
    • 1
  1. 1.Department of Environmental EngineeringZhejiang UniversityHangzhouChina

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