Table 3.
An overview of denitrification efficiency (%) from this study in the aerobic R1 and anaerobic R2 SCN− fed bioreactors at different temperatures and pH values
| Study | Condition | °C | pH | SCN− influent (mg/L) | NO3 − influent (mg/L) | SCN−/NO3 − ratio | Denitrification efficiency (%) | Measuring points (n) |
|---|---|---|---|---|---|---|---|---|
| This study | Aerobic | 21 | 8.0–8.5 | 400 | 2010 | 0.2 | 65.5 ± 16.6 | 39 |
| This study | Aerobic | 15 | 8.0–8.5 | 400 | 2010 | 0.2 | 75.0 ± 1.4 | 19 |
| This study | Aerobic | 10 | 8.0–8.5 | 400 | 2010 | 0.2 | 76.8 ± 1.7 | 11 |
| This study | Aerobic | 8 | 8.0–8.5 | 400 | 2010 | 0.2 | 79.8 ± 2.8 | 22 |
| This study | Anaerobic | 21 | 8.0–8.5 | 400 | 2010 | 0.2 | 81.4 ± 14.2 | 39 |
| This study | Anaerobic | 15 | 8.0–8.5 | 400 | 2010 | 0.2 | 79.7 ± 4.3 | 19 |
| This study | Anaerobic | 10 | 8.0–8.5 | 400 | 2010 | 0.2 | 77.4 ± 1.3 | 11 |
| This study | Anaerobic | 8 | 8.0–8.5 | 400 | 2010 | 0.2 | 79.4 ± 2.5 | 22 |
| Sahariah (2012)1 | Anaerobic | 30 ± 2 | 7.5 ± 0.5 | 100 | 200 | 0.5 | 90 | NA* |
One study was found that also measured NO3 − in both the influent and bioreactor and is presented in the table as a comparison
1Sahariah and Chakraborty (2012)
* Data not available