Presencia y eliminación de compuestos farmacéuticos en sistemas de depuración natural en islas de la Macaronesia

• R. Guedes-Alonso ^[1] ; J. Pacheco-Juárez ^[1] ; M.A.J.B.M. Lopes ^[2] ; S. Montesdeoca-Esponda ^[1] ; V. Mendoza-Grimón ^[1] ; Z. Sosa-Ferrera ^[1] ; J.J. Santana-Rodríguez ^[1] ; M.P. Palacios-Díaz ^[1]
  1. [1] Universidad de Las Palmas de Gran Canaria

     Universidad de Las Palmas de Gran Canaria

     Gran Canaria, España

     
  2. [2] Universiy of Cape Verde
• Localización: 1st Congress Bridge to Africa: Las Palmas de Gran Canaria, 20-25.02.2024, 2024, ISBN 9788490425275, págs. 103-106
• Idioma: español
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• Resumen

  • Pharmaceutical residues are currently a serious environmental problem due to their harmful effects and the continuous entry of these wastes into the environment. These effects are even more harmful in island ecosystems such as the islands of Macaronesia, so it is of vital importance to control their presence and disposal in a focal point of contamination by emerging compounds such as wastewater treatment plants. Specifically, this study has evaluated the presence and elimination of 11 pharmaceutical compounds with different therapeutic applications in natural sewage treatment systems in the Canary Islands and Cape Verde. Most of the compounds were detected at concentrations in the range of ng·L-1 to μg·L-1 .

    Likewise, the eliminations produced during the different natural treatments were evaluated, proving that in many cases high elimination rates were achieved, higher than 90% in some cases for compounds belonging to the families of stimulants and non-steroidal anti-inflammatory drugs. However, other compounds such as carbamazepine showed a marked recalcitrant behaviour. Nevertheless, after the purification process, effluents with a lower environmental risk were obtained compared to the corresponding influents.