References

1. R.R. Choudhury, J.M. Gohil, S. Mohanty, S.K. Nayak, Antifouling, fouling release and antimicrobial materials for surface modification of reverse osmosis and nanofiltration membranes, J. Mater. Chem. A, 6 (2018) 313–333.
2. G.D. Kang, M. Liu, B. Lin, Y.M. Cao, Q. Yuan, A novel method of surface modification on thin-film composite reverse osmosis membrane by grafting poly(ethylene glycol), Polymer, 48 (2007) 1165–1170.
3. Y.S. Khoo, W.J. Lau, Y.Y. Liang, M. Karaman, M. Gürsoy, A.F. Ismail, A green approach to modify surface properties of polyamide thin film composite membrane for improved antifouling resistance, Sep. Purif. Technol., 250 (2020) 116976, doi: 10.1016/j.seppur.2020.116976.
4. J.M. Gohil, P. Ray, Polyvinyl alcohol as the barrier layer in thin film composite nanofiltration membranes: preparation, characterization, and performance evaluation, J. Colloid Interface Sci., 338 (2009) 121–127.
5. Y.Y. Cheng, C.H. Du, C.J. Wu, K.X. Sun, N.P. Chi, Improving the hydrophilic and antifouling properties of poly(vinyl chloride) membranes by atom transfer radical polymerization grafting of poly(ionic liquid) brushes, Polym. Adv. Technol., 29 (2018) 623–631.
6. Y.L. Ji, Q.F. An, Q. Zhao, W.D. Sun, K.R. Lee, H.L. Chen, C.J. Gao, Novel composite nanofiltration membranes containing zwitterions with high permeate flux and improved anti-fouling performance, J. Membr. Sci., 390 (2012) 243–253.
7. W.S. Ang, S.Y. Lee, M. Elimelech, Chemical and physical aspects of cleaning of organic-fouled reverse osmosis membranes, J. Membr. Sci., 272 (2006) 198–210.
8. B.P. Espinasse, S.R. Chae, C. Macronnet, C. Coulombel, C. Mizutani, M. Djafer, V. Heim, M.R. Wiesner, Comparison of chemical cleaning reagents and characterization of foulants of nanofiltration membranes used in surface water treatment, Desalination, 296 (2012) 1–6.
9. D.S. Zhao, L.P. Qiu, J.Y. Song, J.X. Liu, Z.H. Wang, Y.B. Zhu, G. Liu, Efficiencies and mechanisms of chemical cleaning agents for nanofiltration membranes used in produced wastewater desalination, Sci. Total Environ., 652 (2019) 256–266.
10. A. Aguiar, L. Andrade, L. Grossi, W. Pires, M. Amaral, Acid mine drainage treatment by nanofiltration: a study of membrane fouling, chemical cleaning, and membrane ageing, Sep. Purif. Technol., 192 (2018) 185–195.
11. S.Y. Lee, M. Elimelech, Salt cleaning of organic-fouled reverse osmosis membranes, Water Res., 43 (2007) 1134–1149.
12. G.T. Wei, Z.S. Yang, C.J. Chen, Room temperature ionic liquid as a novel medium for liquid/liquid extraction of metal ions, Anal. Chim. Acta, 488 (2003) 183–192.
13. C.L. Shi, Y. Jing, J. Xiao, X.Q. Wang, Y.Z. Jia, Liquid-liquid extraction of lithium using novel phosphonium ionic liquid as an extractant, Hydrometallurgy, 169 (2017) 314–320.
14. S. Marsousi, J. Karimi-Sabet, M.A. Moosavian, Y. Amini, Liquid-liquid extraction of calcium using ionic liquids in spiral microfluidics, Chem. Eng. J., 356 (2019) 492–505.
15. Q. Zeng, Y.Z. Wang, N. Li, X. Huang, X.Q. Ding, X. Lin, S.Y. Huang, X.J. Liu, Extraction of proteins with ionic liquid aqueous two-phase system based on quinidine ionic liquid, Talanta, 116 (2013) 409–416.
16. Z. Du, Y.L. Yu, J.H. Wang, Extraction of proteins from biological fluids by use of an ionic liquid/aqueous
    two-phase system, Chem. Eur. J., 13 (2007) 2130–2137.
17. Y.P. Tzeng, C.W. Shen, T. Yu, Liquid–liquid extraction of lysozyme using a dye-modified ionic liquid,
    J. Chromatogr. A, 1193 (2008) 1–6.
18. X.Q. Ding, Y.Z. Wang, Q. Zeng, J. Chen, Y.H. Huang, K.J. Xu, Design of functional guanidium ionic liquid aqueous twophase systems for efficient purification of protein, Anal. Chim. Acta, 815 (2014) 22–32.
19. N. Kozonoi, Y. Ikeda, Extraction mechanism of metal ion from aqueous solution to the hydrophobic ionic liquid, 1-butyl-3- methylimidazolium nonafluorobutanesulfonate, Monatsh. Chem., 138 (2007) 1145–1151.
20. S.I. Abu-Eishah, Chapter 11 – Ionic Liquids Recycling for Reuse, Ionic Liquids-Classes and Properties, In: Utilization of Salinity- Gradient Solar Ponds in Production of Fresh Water and Solar Salt from Inland and Coastal Areas, InTech – Open Access Publisher, Croatia, 2011, pp. 239–272.
21. Y. Fukaya, K. Sekikawa, K. Murata, N. Nakamura, H. Ohno, Miscibility and phase behavior of water–dicarboxylic acid type ionic liquid mixed systems, Chem. Commun., (2007) 3089–3091, doi: 10.1039/B704992G.
22. Y. Kohno, H. Ohno, Ionic liquid/water mixtures: from hostility to conciliation, Chem. Commun., 48 (2012) 7119–7130.
23. P.I. Liu, L.C. Chung, D.C. Wang, C.H. Ho, T.Y. Cheng, H.X. Xu, M.S. Huang, T.M. Liang, M.C. Chang, R.Y. Horng, Insight into the water recovery characteristics of tetrabutylphosphonium hydrogen maleate ionic liquid draw solute in forward osmosis process, Desal. Water Treat., 138 (2018) 183–187.
24. S. Lee, W.S. Ang, M. Elimelech, Fouling of reverse osmosis membranes by hydrophilic organic matter: implications for water reuse, Desalination, 187 (2006) 313–321.
25. H. Mo, K.G. Tay, H.Y. Ng, Fouling of reverse osmosis membrane by protein (BSA): effects of pH, calcium, magnesium, ionic strength and temperature, J. Membr. Sci., 315 (2008) 28–35.
26. M. Giagnorio, B. Ruffino, D. Grinic, S. Steffenino, L. Meucci, M.C. Zaneti, A. Tiraferri, Achieving low concentrations of chromium in drinking water by nanofiltration: membrane performance and selection, Environ. Sci. Pollut. Res., 25 (2008) 25294–25305.
27. J.C. Huang, J.Q. Luo, X.R. Chen, S.C. Feng, Y.H. Wan, New insights into effect of alkaline cleaning on fouling behavior of polyamide nanofiltration membrane for wastewater treatment, Sci. Total Environ., 780 (2021) 146632, doi: 10.1016/j. scitotenv.2021.146632.