Optimization of opeation parameters for methylene blue degradation by UV/TiO2/H2O2 process in an annular reactor

Authors

  • Pham Duc Chinh Hanoi University of Science and Technology
  • Pham Manh Cuong Hanoi University of Science and Technology
  • Le Phuong Thanh University of Science and Technology of Hanoi
  • Nguyen Thi Thu Trang Vietnam Academy of Science and Technology
  • Nguyen Minh Tan Hanoi University of Science and Technology

DOI:

https://doi.org/10.51316/jca.2021.007

Keywords:

UV/TiO2/H2O2 process, Hydrodynamic condition, UV instensity, Photocatalytic degradation, Annular reactor

Abstract

In this study, the degradation of methylene blue (MB) by UV/TiO2/ H2O2 process was ivestigated in an annular reactor. The effects of the factors: TiO2 concentration, H2O2 dosage, UV density, and hydrodynamic conditions on the reaction rate constant were evaluated by the response surface methodology. The results showed that TiO2 concentration, H2O2 dosage and UV density had a great influence on the kapp, hydrodynamics had a lower influence. Design Expert V.11 software is used to optimize the reaction conditions, the optimal apparent reaction rate constant is 0.168 min-1 under the following conditions: TiO2 concentration of 0.2 g/l, H2O2 dosage is 0.063 mol/l, UV density of 287  W/m2 and Re number is 10000.

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Published

30-04-2021

Issue

Vol. 10 No. 1 (2021): April

Section

Full Articles

How to Cite

Optimization of opeation parameters for methylene blue degradation by UV/TiO2/H2O2 process in an annular reactor. (2021). Vietnam Journal of Catalysis and Adsorption, 10(1), 40-47. https://doi.org/10.51316/jca.2021.007
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