Effects of [NaCl] = 200–20 000 mg L−1, [NO3−] = 1–100 mg L−1, and [HA] = 0.5–20 mg L−1 on TP degradation in a TCAP system. Experimental conditions: [PS]0 = [Fe2+]0 = 2 mM and [TP]0 = 10 mg L−1 for all conditions tested. kobs is obtained as per the pseudo-first order reaction rate model.
| Matrix | Unit | k obs × 10−2 (min−1) | pHi/pHf |
|---|---|---|---|
| No additive | mg L−1 | 5.6 (±0.4) | 1.85/1.53 |
| [NaCl] = 200 | 6.5 (±0.5) | 1.85/1.56 | |
| [NaCl] = 2000 | 3.0 (±0.2) | 1.81/1.62 | |
| [NaCl] = 20 000 | 0.8 (±0.05) | 1.78/1.56 | |
| [NO3−] = 1 | 10.0 (±0.1) | 1.81/1.71 | |
| [NO3−] = 10 | 9.0 (±0.1) | 1.79/1.71 | |
| [NO3−] = 100 | 7.6 (±0.7) | 1.78/1.70 | |
| [HA] = 0.5 | 1.68 (±0.07) | 1.84/1.97 | |
| [HA] = 5 | 2.1 (±0.1) | 1.83/1.95 | |
| [HA] = 20 | 2.2 (±0.1) | 1.81/1.94 |