Fig. 2

Nitrifying activity in 10 WWTPs. a oxygen uptake rates of AOB (OUR-AOB) and NOB (OUR-NOB); b ammonium uptake rates for AOB (AUR) and nitrite uptake rates for NOB (NUR)
Nitrifying activity in 10 WWTPs. a oxygen uptake rates of AOB (OUR-AOB) and NOB (OUR-NOB); b ammonium uptake rates for AOB (AUR) and nitrite uptake rates for NOB (NUR)