Table 3 COD removal and Coulombic efficiency (n = 3; mean ± standard error)
From: Increasing phosphorus recovery from dewatering centrate in microbial electrolysis cells
Experiment | Number of SSM cathode | COD in feed (mg/L) | COD in effluent (mg/L) | COD Removal (%) | Coulombic efficiency (%) |
|---|---|---|---|---|---|
Set A | 1 piece | 600 ± 21 | 437 ± 64 | 26.9 ± 11.1 | 86.3 ± 64.6 |
3 pieces | 367 ± 12 | 38.6 ± 4.2 | 29.9 ± 6.5 | ||
5 pieces | 457 ± 30 | 24.0 ± 3.1 | 54.2 ± 17.4 | ||
Set B | 1 piece | 487 ± 35 | 407 ± 22 | 16.2 ± 2.3 | 10.4 ± 1.0 |
3 pieces | 397 ± 27 | 18.4 ± 1.3 | 26.7 ± 15.1 | ||
5 pieces | 367 ± 43 | 24.5 ± 7.7 | 18.7 ± 15.6 | ||
Set C | 1 piece | 730 | 460 | 37.0 | 2.5 |
630 | 480 | 23.8 | 5.5 | ||
800 | 680 | 15.0 | 9.7 |