Research Article
Evaluation of Efficacy of Anionic Surfactant Degradation in the Presence of Concomitant Impurities of Natural Waters
Table 1
Characteristics of initial solutions of ABS, humic, or fulvic acids and river waters.
| Object of research | Colour value, degr. | , cm−1 | TOC, mg/dm3 | pH | Concentration of , mg-eq/dm3 |
| ABS solution in distilled water | — | 0.04 | 3.6 | 5.7 | 0 | HA solution in distilled water | 68 | 0.35 | 3.8 | 7.2 | 0 | ABS and HA solution in distilled water ( = 0 or 14 days) | 67–71 | 0.34–0.39 | 6.1–6.3 | 7.2 | 0 | Desna River water (winter) | 18 | 0.22 | 7.6 | 8.0 | 3.7 | Solution of ABS in the Desna water (winter) | 24 | 0.27 | 9.4 | 8.2 | 3.7 | Dnieper River water (winter) | 38 | 0.38 | 12.4 | 7.9 | 3.1 | Solution of ABS in the Dnieper water (winter) | 38 | 0.42 | 16.1 | 7.8 | 3.1 | Dnieper River water (summer) | 43 | 0.43 | 17.9 | 8.3 | 2.75 | Desna River water (summer) | 30 | 0.27 | 14.7 | 8.6 | 3.7 | Solution of FA in model water | 72 | 0.60 | 16.4 | 8.2 | 2.0 | Solution of FA in distilled water | 58 | 0.54 | 15.8 | 6.0 | 0 |
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Note: Initial concentration of ABS and HA—5 and 10 mg/dm3, respectively.
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