Content of various types of nitrogen (% of total N) after nitrate reduction by S. oneidensis MR-1 only and in the ferrihydrite- and magnetite-associated S. oneidensis MR-1 systems at the end of the first (1st) and second (2nd) nitrate addition periods
| System . | Ct/C0 (%) . | ||||
|---|---|---|---|---|---|
| NO3−-N . | NH4+-N . | NO2−-N . | N2O . | NO2 . | |
| S. oneidensis MR − 1 | 3.11 | 96.12 | 0.77 | NDa | ND |
| Ferrihydrite/S. oneidensis MR − 1 (1st) | 5.64 | 93.56 | 0.80 | ND | ND |
| Magnetite/S. oneidensis MR − 1 (1st) | 1.93 | 97.57 | 0.50 | ND | ND |
| Ferrihydrite/S. oneidensis MR − 1 (2nd) | 14.44 | 29.15 | 9.08 | 25.14 | 22.19 |
| Magnetite/S. oneidensis MR − 1 (2nd) | 10.94 | 62.15 | 10.11 | 10.13 | 6.67 |
| System . | Ct/C0 (%) . | ||||
|---|---|---|---|---|---|
| NO3−-N . | NH4+-N . | NO2−-N . | N2O . | NO2 . | |
| S. oneidensis MR − 1 | 3.11 | 96.12 | 0.77 | NDa | ND |
| Ferrihydrite/S. oneidensis MR − 1 (1st) | 5.64 | 93.56 | 0.80 | ND | ND |
| Magnetite/S. oneidensis MR − 1 (1st) | 1.93 | 97.57 | 0.50 | ND | ND |
| Ferrihydrite/S. oneidensis MR − 1 (2nd) | 14.44 | 29.15 | 9.08 | 25.14 | 22.19 |
| Magnetite/S. oneidensis MR − 1 (2nd) | 10.94 | 62.15 | 10.11 | 10.13 | 6.67 |
aND means not detected.