Table 4.
Various surfactants treatment technologies and their performances
| Treatment method | Surfactant (initial concentration 500ppm) | Removal efficiency (%) | Rf |
|---|---|---|---|
| Anaerobic/oxic process | Nonylphenol (NP) | 86 | Gao et al. (2017) |
| Anaerobic/oxic process | Nonylphenol mono-ethoxylate (NP1EO) | 90 | Gao et al. (2017) |
| Anaerobic/oxic process | Nonylphenol di-ethoxylate NP2EO) | 90 | Gao et al. (2017) |
| Electron beam | Perfluorooctane sulfonate (PFOS) | 68.04 | Kim et al. (2018) |
| Adsorption CNT | Hexadecyl trimethyl ammonium bromide (CTAB) | 50.36 | Gao et al. (2020) |
| Adsorption SNP | Linear alkylbenzene sulfonates (LAS) | 90 | Hu et al. (2019) |
| Electro-Fenton | Anionic surfactant | 100 | Ganiyu et al. (2018a) |
| Coagulation | Anionic surfactant | 88.2 | Naumczyk et al. (2017) |
| Coagulation | Anionic surfactant | 91.6 | Naumczyk et al. (2017) |
| Coagulation-flocculation | Anionic surfactant | 87.3 | Naumczyk et al. (2017) |
| Fenton process | Anionic surfactant | 72.7 | Naumczyk et al. (2017) |
| Sonoreactor | Linear alkylbenzene sulfonates (LAS) | Dehghani et al. (2019) | |
| TAMR +NF+AC | Non-ionic (TAS) | 95 | Collivignarelli et al. (2019) |
| TAMR +NF+AC | Methylene blue active substance (MBAS) | 76 | Collivignarelli et al. (2019) |
| Ozonation | Anionic, cationic, and non-ionic surfactant | Delanghe et al. (1991) |