Journal of Guangdong University of Technology ›› 2021, Vol. 38 ›› Issue (03): 79-85.doi: 10.12052/gdutxb.200117

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A Study of the Factors Influencing the Degradation of Metoprolol by UV-LED Combined with Sodium Hypochlorite

Wang Si-si1, Liu Li-fan1, Li Shao-feng2, Ran Zhi-lin3   

  1. 1. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;
    2. Department of Building and Environmental Engineering, Shenzhen Polytechnic Institute, Shenzhen 518055, China;
    3. School of Traffic and Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, China
  • Received:2020-09-10 Online:2021-05-10 Published:2021-03-12

Abstract: Using UV-LED / Cl2 Advanced Oxidation Process to study the degradation of metoprolol (MTP), one of the β-blocker, the effects of light intensity, chlorine dosage, pH, TBA and other factors on the degradation of MTP are investigated. Studies have shown that UV-LED / Cl2 can effectively remove MTP by synergy. The MTP degradation during UV-LED / Cl2 treatment satisfies pseudo-first-order kinetics, and the pseudo-first-order rate constants of MTP (kobs) increases with the UV-LED light intensity and the pH of the solution. With the increase of the chlorine dose, the kobs of MTP increases first and then decreases. The kobs of MTP decreases with the increase of the initial concentration of MTP and TBA, and TBA has a strong inhibitory effect on MTP degradation during UV-LED / Cl2 treatment.

Key words: ultraviolet light-emitting diode, sodium hypochlorite, metoprolol, influencing factors, advanced oxidation process

CLC Number: 

  • X524
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