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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