Fig 5. The effect of the addition of Pt(II)Cl42- on the membrane integrity of different bacterial cells during platinum recovery as a function of time.

Four different bacterial cultures were studied; Shewanella oneidensis MR-1, Cupriavidus metallidurans CH34, Bacillus toyonensis and Pseudomonas stutzeri. The recovery experiment was started at t₀ by the addition of 100 mg L^-1 Pt and H₂-gas as electron donor. The pH was initially set at pH 2.0.