Research Article
Evaluation of Efficacy of Anionic Surfactant Degradation in the Presence of Concomitant Impurities of Natural Waters
Table 3
The degree of destruction of organic contaminants of model solutions containing ABS and HA under oxidation by various methods.
| | The content of model solution | Oxidation method | Discoloration, % | ΔTOC, % | /ΔTOC, mg/mg |
| | ABS (—5 mg/dm3) + HA (—10 mg/dm3) (fresh) | O3 | 74 | 18 | 7.4 | | O3/UV | 84 | 21 | 8.9 | | O3/TiO2/UV | 84 | 70 | 2.3 | | O2/TiO2/UV | 68 | 57 | — |
| | ABS (—5 mg/dm3) + HA (—10 mg/dm3) (storage over 14 days) | O3 | 54 | 13 | 9.0 | | O3/UV | 62 | 20 | 10.3 | | O3/TiO2/UV | 75 | 71 | 2.6 | | O2/TiO2/UV | 75 | 51 | — |
| | ABS (—5 mg/dm3) | O3 | — | 0 | — | | O3/UV | — | 25 | 13.4 | | O3/TiO2/UV | — | 67 | 4.3 | | O2/TiO2/UV | — | 53 | — |
| | HA (—10 mg/dm3) | O3 | 65 | 16 | 14.5 | | O3/UV | 69 | 47 | 6.1 | | O3/TiO2/UV | 78 | 74 | 4.0 | | O2/TiO2/UV | 74 | 68 | — |
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Note: = 20 min, = 0.8 mg/(dm3·min), = 5.2 mW/cm2, = 18 ± 1°C.
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