Table 1.
Characteristics of the studied reactors
| Reactor type | Configuration | Samples name | Sampling daya | Scale | Substrate | Condition |
|---|---|---|---|---|---|---|
| Aerobic | ASb/floccular biomass | RH4 | 0 | Full-scale | Health-care waste treatment wastewater | Stable conditions for more than 6 years |
| RH5 | 300 | |||||
| RH6 | 390 | |||||
| Methanogenic | UASBc/granular biomass | MO1 | 0 | Brewery-malt processing industry | Stable conditions for more than 12 years | |
| MO2 | 210 | |||||
| MO3 | 300 | |||||
| Anammox | SBRd/granular biomass | AM | Inoculum | Lab scale | Synthetic wastewater | Stable conditions for more than 6 years |
| UAnSBe/granular biomass | S1 | 81 | Sewage after a partial nitrification system | 81 days of operation (seeded with sludge from AM) | ||
| S3 | ||||||
| S5 |
aFor reactors RH and MO day 0 was considered the first day of sampling, for the anammox reactor S day 0 was considered the inoculation day
bAS Activated sludge
cUASB Upflow anaerobic sludge blanket
dUAnSB Upflow anammox sludge blanket
eSBR Sequencing batch reactor