SET Parameters                                             Removal Efficiencies (%)          25°C (Control)                 30°C                 60°C 60. min 120. min 150. min 60. min 120. min 150. min 60. min 120. min 150. min 1 CODdis 13 42 61 16 42 63 18 47 67 2 Total phenol 30 57 61 45 62 80 48 70 88 3 Color 36 48 50 39 53 75 45 70 84 4 TAAs 41 52 66 47 56 69 62 71 79

Table 3: Effect of increasing ultrasound time (60, 120 and 150 min) and increasing temperature (at 25°C, at 30°C and at 60°C) on the CODdis, total phenol, color and TAAs removal efficiencies in OMW, at an initial CODdis concentration=109444 mg/L, at an initial total phenol concentration=2990 mg/L, at an initial color concentration=99.8 1/m, at an initial TAAs concentration=1990 mg benzidine/L, at ultrasound power=640 W, at ultrasound frequency=35 kHz and at pH=5.4 (n=3, mean values).