Biological Removal and Fate Assessment of Diclofenac Using Bacillus subtilis and Brevibacillus laterosporus Strains and Ecotoxicological Effects of Diclofenac and 4′-Hydroxy-diclofenac

Figure 2

Pseudo-first-order kinetic plot for the degradation of diclofenac initially spiked at 1.0 mg·L⁻¹ over time at 20°C. The dotted line (time > 0 h) represents the exponential regression of the measured data using equation (3) and the corresponding coefficient of determination (R²).