Predicting Accumulation of Intermediate Compounds in Nitrification and Autotrophic Denitrification Processes: A Chemical Approach

Figure 2

Gibbs free energy (kJ) per electron mol transferred under the conditions of the different operational stages: (a) ammonia oxidation: ■ reaction (i); □ reaction (ii) and (b) autotrophic denitrification: ◆ reaction (iii); ◊ reaction (iv); ∙ reaction (v); ο reaction (vi); ▲ reaction (vii); ∆ reaction (viii)). All reactions are described in Table 2.

(a)

(b)