Figure 2.

Removal of diclofenac by combined manganese and silver species. A. By Bio‐MnOx (3.28 mg Mn l⁻¹) combined with Bio‐Ag⁰ or Ag⁺ (5 mg Ag l⁻¹), and by Bio‐Ag⁰, Ag⁺ and Bio‐MnOx as separate controls. B. Diclofenac removal at elevated metal concentrations: 3.28 mg Mn l⁻¹ as Bio‐ MnOx with 5 mg l⁻¹ silver as Bio‐Ag⁰, and twofold and 10‐fold increases. C₀ = 3 mg l⁻¹ diclofenac. Error bars indicate standard deviations of three replicates; sometimes smaller than symbols.