Start-Up and Aeration Strategies for a Completely Autotrophic Nitrogen Removal Process in an SBR

Figure 3

Profiles of nitrogen compounds in bulk solutions for a typical reaction time (450 min) of the SBR with four aeration strategies: (a) continuous aeration; (b) aeration time : nonaeration time = 1 h : 0.5 h; (c) aeration time : nonaeration time = 1 h : 1 h; (d) aeration time : nonaeration time = 0.5 h : 1 h.

(a)

(b)

(c)

(d)