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. 2008 May 2;74(12):3718–3729. doi: 10.1128/AEM.02308-07

FIG. 2.

FIG. 2.

Typical biostimulation of U(VI) reduction by injecting ethanol to the subsurface (days 704 to 714). (A) COD concentrations. (B) Sulfide concentrations. (C) Uranium concentration changes in MLS wells. The U concentration in injection well FW104 was 0.5 μM during this test period and is not shown due to scale. “+E” indicates the start and −E indicates the stopping of ethanol biostimulation.