Archaea and Bacteria Acclimate to High Total Ammonia in a Methanogenic Reactor Treating Swine Waste

Figure 4

Bacterial distributions. (a) Phylotypes at the family level. (b) Most abundant phylotypes at the genera level. Similar colors (purple, yellow, black, blue, green, gray, and pink) indicate that the families are in the same order. The total NH₃-N concentration at the time of the batch sampling was 1140 mg/L. Semicontinuous operation is an average of two samples at ~2000 mg NH₃-N/L. “U_” stands for unidentified microorganism within the taxonomic classification.

(a)

(b)