Synergistic, aqueous PAH degradation by ultrasonically-activated persulfate depends on bulk temperature and physicochemical parameters

• Combined US and activated persulfate synergistically degrades PAHs from 20 to 50 °C. • At 20 °C, US-PS rate constants strongly correlate with diffusion coefficients. • Synergy Indexes are greatest for all PAHs between 20 and 40 °C. • US-PS becomes antagonistic at 60 °C due to radical-radical recom...
Ausführliche Beschreibung

• Combined US and activated persulfate synergistically degrades PAHs from 20 to 50 °C. • At 20 °C, US-PS rate constants strongly correlate with diffusion coefficients. • Synergy Indexes are greatest for all PAHs between 20 and 40 °C. • US-PS becomes antagonistic at 60 °C due to radical-radical recombination. Ausführliche Beschreibung