Figure 4 | Scientific Reports

Figure 4

From: Bioelectrochemical enhancement of anaerobic methanogenesis for high organic load rate wastewater treatment in a up-flow anaerobic sludge blanket (UASB) reactor

Figure 4

FISH images of the sludge samples in different reactors (R1 and R2) at the acid conditions of influent pH below 5.5.

The sludge samples (a, b) was collected from the bottom of the two reactors (R1 and R2). The sludge samples (c) were collected from the surface of the cathode in R1. Respectively, the sludge of R1 and R2 hybridized with specific probes for Archaea and hydrogenotrophic methanogens (ARC915-FITC, green and MB1174-CY3, red).

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