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Biological sulfide oxidation on synthetic medium. (A) Input and output ratio pattern of sulfur species in the bioreactor (S[2−], S[6+], and S[0]); (B) mass of S[2−] consumed each day during 5 days operation; (C) mass of S[6+] generated each day during 5 days operation; (D) the changes of total protein and cell count in the reactor as a function of time.
