Claudia Mejia-Morales, Diego Mauricio Cortés-Hernández, Fernando Hernández Aldana, Ricardo Darío Peña-Moreno, Noemi Bonilla y Fernández
In this study, we evaluate the efficiency of photochemical systems UV / H2O2, UV / O3, and UV / H2O2 / O3 for the decontamination of hospital wastewater using advanced oxidation processes involving homogeneous photolysis (POAF). The systems were examined by observing changes in the absorption spectra of UV-Vis over time during radiation exposure. Data fitting was performed using a logistic model to assess the treatment efficacy. From the logistic model, two key parameters were defined: the maximum degradation percentage of wastewater (k) and the decontamination speed (r), both of which facilitated the evaluation of treatment efficiency. Results indicated that the UV / H2O2 / O3 system achieved a higher percentage of decontaminated water and decontamination speed compared to the UV / H2O2 and UV / O3 systems.