Research Article

Shifts in Nitrification Kinetics and Microbial Community during Bioaugmentation of Activated Sludge with Nitrifiers Enriched on Sludge Reject Water

Table 2

AOB and NOB composition in seed source (“—” no signals were detected).

Species (probe)Percentage relative to DAPI

AOB
Nitrosococcus (Nmv)13.1% (±3.4%)
Nitrosospira spp. (Nsv 443)

Total AOB (Nso1225)18.8% (±2.7%)

NOB
Nitrobacter (NIT 3)9.4% (±1.6%)
Nitrospira (Ntspa 662)2.7% (±0.47%)
Nitrococcus (Ntcoc206)0.86% (±0.11%)
Nitrospina (Ntspn693)1.2% (±0.62%)

Total NOB14.4% (±2.8%)

A O B + N O B 33.2
AOB/NOB1.31