Fig. 7. The time course of color removal by activated carbon (Filtrasorb 400; 0.01 g/mL) following the horseradish treatment. Reaction mixture volume = 110 mL; horseradish amount = 5.5 g; 2,4-dichlorophenol (2,4-DCP) concentration = 1 mM; H₂O₂ concentration = 1 mM; pH = 7.0; incubation time = 3 h; incubation temperature = 25°C.