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NH4+-N removal and recovery performance in different cathode modes.
| Effluent NH4+-N (mg L−1) | N removal efficiency (%) | NH4+-N removal rate (g N m−2 d−1) | NH4+-N recovery rate (g N m−2 d−1) | N recovery efficiency (%) | |
|---|---|---|---|---|---|
| SNonEM-1A | 367.29 ± 6.15 | 18.5 ± 1.3 | 2.1 ± 0.2 | 1.8 ± 0.1 | 85.0 ± 2.3 |
| SEM-1A | 149.37 ± 6.23 | 66.9 ± 1.4 | 7.6 ± 0.2 | 6.9 ± 0.2 | 90.8 ± 2.5 |
| SNonEM-2A | 205.45 ± 2.66 | 54.5 ± 0.7 | 6.2 ± 0.1 | 5.4 ± 0.3 | 88.1 ± 3.4 |
