Ozone Kinetic Studies Assessment for the PPCPs Abatement: Mixtures Relevance

The increasing consumption of pharmaceutical and personal care products (PPCPs) by humankind has been causing an accumulation contaminants (commonly referred to as emerging concern), in effluents water resources. Ozonation can be used improve the removal these during treatment alleviate this burden. In work, degradation methyl (MP), propylparaben (PP), paracetamol (PCT), sulfamethoxazole (SMX), carbamazepine (CBZ) ozonation was assessed both for individual compounds mixtures with complexity (two five compounds). performed at pH3 gain insight on exclusive action molecular ozone oxidizing agent. described a function time transferred dose, corresponding pseudo-first order kinetic rate constants (k’) were determined. PPCPs degraded individually within 1.5 10 min. CBZ most quickly (k’ = 1.25 min−1) MP resistant 0.25 min−1). When mixture, slower. For parabens, increase number mixture led exponential decrease k’ values. Moreover, presence more increased energy associated treatment, thereby reflecting higher economic costs.