Fig. 6
From: Evaluating the efficiency of formaldehyde degradation from aqueous environment by sonozone technique
Taguchi model (Experimental conditions: Formaldehyde concentration = 110–330 mg/L, pH = 3–11, Time = 8–32 min, Electric power = 50–150 W, Ozone concentration = 0.2–0.6 mg/min.L).
