Fig. 5. Impact of cell voltage on the micropollutant removal.

Electrochemical degradation of estradiol (E2) over cell voltage from 0.6 to 2.5 V, expressed as (A) E2 removal, apparent rate of E2 removal, and apparent rate of total byproducts formation; and (B) contribution to the mass removal of E2 by the electrochemical adsorption and degradation.$c_{f,E2}$ = 1 µg L⁻¹, V, $J_f$ = 150 L m⁻² h⁻¹ (5 mL min⁻¹), 1 mM NaHCO₃, 10 mM NaCl, 27.2 mg L⁻¹ EtOH, 79.2 mg L⁻¹ MeOH, pH 8.2 ± 0.2, 23 ± 1 °C. Error bars represent propagated error from operational parameter variations and analytical error.