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. 2020 Jan 15;10:3058. doi: 10.3389/fmicb.2019.03058

FIGURE 2.

FIGURE 2

Time-courses for (A) pH, (B) ORP, (C) Fe3+ generation rate, (D) Fe2+ concentration, (E) bioleaching efficiency of lithium, and (F) bioleaching efficiency of cobalt during bioleaching process of LiCoO2 using the two-step method and the exogenous-acid adjustment technique.