Environmental Science and Pollution Research

, Volume 26, Issue 5, pp 4288–4299 | Cite as

Removal of pharmaceutically active compounds from synthetic and real aqueous mixtures and simultaneous disinfection by supported TiO2/UV-A, H2O2/UV-A, and TiO2/H2O2/UV-A processes

  • Morgana Bosio
  • Suéllen Satyro
  • João Paulo Bassin
  • Enrico SaggioroEmail author
  • Márcia Dezotti
Advanced Oxidation Technologies: State-of-the-Art in Ibero-American Countries


Pharmaceutically active compounds are carried into aquatic bodies along with domestic sewage, industrial and agricultural wastewater discharges. Psychotropic drugs, which can be toxic to the biota, have been detected in natural waters in different parts of the world. Conventional water treatments, such as activated sludge, do not properly remove these recalcitrant substances, so the development of processes able to eliminate these compounds becomes very important. Advanced oxidation processes are considered clean technologies, capable of achieving high rates of organic compounds degradation, and can be an efficient alternative to conventional treatments. In this study, the degradation of alprazolam, clonazepam, diazepam, lorazepam, and carbamazepine was evaluated through TiO2/UV-A, H2O2/UV-A, and TiO2/H2O2/UV-A, using sunlight and artificial irradiation. While using TiO2 in suspension, best results were found at [TiO2] = 0.1 g L−1. H2O2/UV-A displayed better results under acidic conditions, achieving from 60 to 80% of removal. When WWTP was used, degradation decreased around 50% for both processes, TiO2/UV-A and H2O2/UV-A, indicating a strong matrix effect. The combination of both processes was shown to be an adequate approach, since removal increased up to 90%. H2O2/UV-A was used for disinfecting the aqueous matrices, while mineralization was obtained by TiO2-photocatalysis.


Benzodiazepines Carbamazepine Supported TiO2 H2O2 Wastewater Disinfection 



The authors thank Potters Industrial Ltda. for supplying the glass beads. Bosio, M. would like to thank CNPq/CAPES. Saggioro, E.M. would like to thank FAPERJ project (E-26/010.002117/2015 and E-26/203.165/2017). Satyro, S. would like to thank CNPq/CAPES/VALE/MITACS (201488/2016-7).


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Copyright information

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

Authors and Affiliations

  • Morgana Bosio
    • 1
    • 2
  • Suéllen Satyro
    • 3
  • João Paulo Bassin
    • 2
  • Enrico Saggioro
    • 4
    Email author
  • Márcia Dezotti
    • 2
  1. 1.Center of Studies on Worker’s Health and Human Ecology, Sergio Arouca National School of Public HealthOswaldo Cruz FoundationRio de JaneiroBrazil
  2. 2.COPPE—Chemical Engineering ProgramFederal University of Rio de JaneiroRio de JaneiroBrazil
  3. 3.Chemical & Biological EngineeringUniversity of British ColumbiaVancouverCanada
  4. 4.Sanitation and Environment Health Department, Sergio Arouca National School of Public HealthOswaldo Cruz FoundationRio de JaneiroBrazil

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