Table 3. PCE Removal and RD Rate under the Three Operating Conditions at Different Applied Cathodic Potentials.
| Ecath (mV vs SHE) | –450 | –650 | –350 |
|---|---|---|---|
| PCE removal rate (μmol/Ld) | 28 ± 8 | 28 ± 6 | 43 ± 11 |
| PCE removal efficiency (%) | 96 ± 4 | 100 ± 2 | 98 ± 4 |
| RD (μeq/Ld) | 73 ± 5 | 62 ± 9 | 84 ± 7 |
| CERD (%) | 0.7 ± 0.2 | 0.4 ± 0.1 | 1.8 ± 0.4 |