Environmental Science and Pollution Research

, Volume 26, Issue 5, pp 4488–4497 | Cite as

Evaluation of heterogeneous catalytic ozonation process for diclofenac degradation in solutions synthetically prepared

  • Jenny CastroEmail author
  • Santiago Paz
  • Natali Mena
  • Julián Urresta
  • Fiderman Machuca-Martinez
Advanced Oxidation Technologies: State-of-the-Art in Ibero-American Countries


Sodium diclofenac (DCF) is a common analgesic and anti-inflammatory drug, which has become an environmental problem due to its growth and accumulation into water bodies. In this work, commercial (with excipients) and analytical (pure) DCF mineralization was studied by means of heterogeneous catalytic ozonation. The process was carried out with magnetite (Fe3O4) as a catalyst, which preserves its physical and chemical properties during the process. The best results of mineralization were obtained after a 40-min treatment of 35 mg/L analytical DCF solution, with a 0.5 g/L catalyst concentration. These results showed the highest organic load decrease, measured as dissolved organic carbon (DOC) and chemical oxygen demand (COD), with 94 and 89%, respectively. In addition, the percentage of organic load decrease was compared between the conventional and the catalyzed process. Besides, reaction products were identified by gas chromatography–mass spectrometry (GC-MS) and the catalytic properties were identified by Mössbauer spectroscopy, which showed the catalyst maintained its nature after the process. Finally, the results obtained show that the heterogeneous catalytic process could be an efficient degradation treatment for emerging contaminants such as DCF.


Ozonation Diclofenac Magnetite Heterogeneous catalysis Wastewater Catalytic activity Emerging pollutants 



The authors thank the investigation group of Procesos Avanzados para Tratamientos Químicos y Biológicos (GAOX).

Funding information

This study received financial and scientific support from Laboratorio de Investigación en Catálisis Aplicada y Procesos (LICAP) from Universidad del Valle, Cali, Colombia.

Supplementary material

11356_2018_2582_MOESM1_ESM.docx (488 kb)
ESM 1 (DOCX 487 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Jenny Castro
    • 1
    Email author
  • Santiago Paz
    • 1
  • Natali Mena
    • 2
  • Julián Urresta
    • 2
  • Fiderman Machuca-Martinez
    • 1
  1. 1.Grupo de Investigación de Procesos Avanzados para Tratamientos Químicos y Biológicos (GAOX)Universidad del ValleCaliColombia
  2. 2.Laboratorio de Investigación en Catálisis aplicada y Procesos (LICAP)Universidad del ValleCaliColombia

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