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. 2016 Jun 9;6:27744. doi: 10.1038/srep27744

Figure 2.

Figure 2

Performance of partial nitritation in the anoxic-aerobic reactors: (a) influent ammonium, effluent ammonium and nitrite together with the nitrite-to-ammonium molar ratio; (b) influent and effluent alkalinity concentration as well as the ratio of decreased alkalinity to oxidized ammonium; and (c) influent and effluent COD concentrations.