Effect of Free Nitrous Acid on Nitrous Oxide Production and Denitrifying Phosphorus Removal by Polyphosphorus-Accumulating Organisms in Wastewater Treatment

Figure 2

Profiles of nitrite, phosphorus, and nitrous oxide: (a) nitrite reduction; (b) phosphorus uptake; (c) N₂O production. (pH of 6.0, 6.5, 7.0, 7.5, 8.0, and 8.5 corresponds to 0.0923, 0.0316, 0.0103, 0.0031, 0.00096, and 0.00035 mgHNO₂-N/L, resp.).

(a)

(b)

(c)