Effect of solar photo-Fenton process in raceway pond reactors at neutral pH on antibiotic resistance determinants in secondary treated urban wastewater
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Fiorentino, Antonino; Esteban García, Ana Belén![Autoridad Universidad de Almería Autoridad Universidad de Almería](/themes/Mirage2/images/autoridades/autoridad.png)
![Autoridad Universidad de Almería Autoridad Universidad de Almería](/themes/Mirage2/images/autoridades/autoridad.png)
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2019Resumen
Solar photo-Fenton process in raceway pond reactors was investigated at neutral pH as a sustainable tertiary treatment of real urban wastewater. In particular, the effect on antibiotic resistance determinants was evaluated. An effective inactivation of different wild bacterial populations was achieved considering total and cefotaxime resistant bacteria. The detection limit (1 CFU mL−1) was achieved in the range 80–100 min (5.4–6.7 kJ L−1 of cumulative solar energy required) for Total Coliforms (TC) (40–60 min for resistant TC, 4.3–5.2 kJ L−1), 60–80 min (4.5–5.4 kJ L−1) for Escherichia coli (E. coli) (40 min for resistant E. coli, 4.1–4.7 kJ L−1) and 40–60 min (3.9–4.5 kJ L−1) for Enterococcus sp. (Entero) (30–40 min for resistant Entero, 3.2–3.8 kJ L−1) with 20 mg L−1 Fe2+ and 50 mg L−1 H2O2. Under these mild oxidation conditions, 7 out of the 10 detected antibiotics were effectively removed (60–100%). As the removal of antibiotic resistance genes (ARGs) is of concern, no conclusive r...
Palabra/s clave
Antibiotic resistance genes
Antibiotic resistant bacteria
Raceway pond reactor
Solar photo-Fenton
Urban wastewater