1. WHO, Guidelines for Drinking-Water Quality, Vol. 1, 4th ed., World Health Organization, Geneva, 2011, pp. 104–108.
  2. D. Fagin, Second thoughts about fluoride, Sci. Am., 298 (2008) 74–81.
  3. M. Pontié, C. Diawara, A. Lhassani, H. Dach, M. Rumeau, H. Buisson, J.C. Schrotter, Chapter 2 Water defluoridation processes: a review. Application: nanofiltration (NF) for future large-scale pilot plants, Adv. Fluorine Sci., 2 (2006) 49–80.
  4. H.M.S. Wasana, D. Aluthpatabendi, W.M.T.D. Kularatne, P. Wijekoon, R. Weerasooriya, J. Bandara, Drinking water quality and chronic kidney disease of unknown etiology (CKDu): synergic effects of fluoride, cadmium and hardness of water, Environ. Geochem. Health, 38 (2016) 157–168.
  5. J. van der G. Jean Margat, Groundwater around the World: A Geographic Synopsis, CRC Press, Boca Raton, 2013.
  6. S. Ayoob, A.K. Gupta, Fluoride in drinking water: a review on the status and stress effects, Crit. Rev. Environ. Sci. Technol., 36 (2006) 433–487.
  7. M. Vithanage, P. Bhattacharya, Fluoride in the environment: sources, distribution and defluoridation, Environ. Chem. Lett., 13 (2015) 131–147.
  8. R. El Jaoudi, M.A. El Cadi, Y. Bouslimane, M. Fekhaoui, A. Bouklouze, Y. Cherrah, Fluoride content in well water in rural areas in Morocco, Odontostomatol. Trop., 37 (2014) 42–48.
  9. M. Mohapatra, S. Anand, B.K. Mishra, D.E. Giles, P. Singh, Review of fluoride removal from drinking water, J. Environ. Manage., 91 (2009) 67–77.
  10. K. Brindha, R. Rajesh, R. Murugan, L. Elango, Fluoride contamination in groundwater in parts of Nalgonda District, Andhra Pradesh, India, Environ. Monit. Assess., 172 (2011) 481–492.
  11. Meenakshi, R.C. Maheshwari, Fluoride in drinking water and its removal, J. Hazard. Mater., 137 (2006) 456–463.
  12. S. Chakrabortty, M. Roy, P. Pal, Removal of fluoride from contaminated groundwater by cross flow nanofiltration: transport modeling and economic evaluation, Desalination, 313 (2013) 115–124.
  13. M. Pontie, H. Dach, A. Lhassani, C.K. Diawara, Water defluoridation using nanofiltration vs. reverse osmosis: the first world unit, Thiadiaye (Senegal), Desal. Wat. Treat., 51 (2013) 164–168.
  14. F. Elazhar, J. Touir, M. Elazhar, S. Belhamidi, N. El Harrak, A. Zdeg, M. Hafsi, Z. Amor, M. Taky, A. Elmidaoui, Technoeconomic comparison of reverse osmosis and nanofiltration in desalination of a Moroccan brackish groundwater, Desal. Wat. Treat., 55 (2015) 2471–2477.
  15. J. Shen, B.S. Richards, A.I. Schäfer, Renewable energy powered membrane technology: case study of St. Dorcas borehole in Tanzania demonstrating fluoride removal via nanofiltration/ reverse osmosis, Sep. Purif. Technol., 170 (2016) 445–452.
  16. W.R. Bowen, A.W. Mohammad, N. Hilal, Characterisation of nanofiltration membranes for predictive purposes – use of salts, uncharged solutes and atomic force microscopy, J. Membr. Sci., 126 (1997) 91–105.
  17. M. Pontié, H. Dach, J. Leparc, M. Hafsi, A. Lhassani, Novel approach combining physico-chemical characterizations and mass transfer modelling of nanofiltration and low pressure reverse osmosis membranes for brackish water desalination intensification, Desalination, 221 (2008) 174–191.
  18. M. Pontie, H. Buisson, C.K. Diawara, H. Essis-Tome, Studies of halide ions mass transfer in nanofiltration – application to selective defluorination of brackish drinking water, Desalination, 157 (2003) 127–134.
  19. J. Hoinkis, S. Valero-Freitag, M.P. Caporgno, C. Patzold, Removal of nitrate and fluoride by nanofiltration – a comparative study, Desal. Wat. Treat., 30 (2011) 278–288.
  20. N. Hilal, V. Kochkodan, H. Al Abdulgader, S. Mandale, S.A. Al-Jlil, A combined ion exchange-nanofiltration process for water desalination: III. Pilot scale studies, Desalination, 363 (2015) 58–63.
  21. Analyse de l’eau Rodier, 9ème ed, 2009.
  22. H. Kelewou, A. Lhassani, M. Merzouki, P. Drogui, B. Sellamuthu, Salts retention by nanofiltration membranes: physicochemical and hydrodynamic approaches and modeling, Desalination, 277 (2011) 106–112.
  23. Y.A. Boussouga, A. Lhassani, Study of mass transfer mechanisms for reverse osmosis and nanofiltration membranes intended for desalination, J. Mater. Environ. Sci., 8 (2017) 1128–1138.
  24. C.Y. Tang, Y. Kwon, J.O. Leckie, Effect of membrane chemistry and coating layer on physiochemical properties of thin film composite polyamide RO and NF membranes II. Membrane physiochemical properties and their dependence on polyamide and coating layers, Desalination, 242 (2009) 168–182.
  25. S. Yüksel, N. Kabay, M. Yüksel, Removal of bisphenol A (BPA) from water by various nanofiltration (NF) and reverse osmosis (RO) membranes, J. Hazard. Mater., 263 (2013) 307–310.
  26. B. Teychene, G. Collet, H. Gallard, J.P. Croue, A comparative study of boron and arsenic (III) rejection from brackish water by reverse osmosis membranes, Desalination, 310 (2013) 109–114.
  27. A. Altaee, A. Sharif, A conceptual NF/RO arrangement design in the pressure vessel for seawater desalination, Desal. Wat. Treat., 54 (2015) 624–636.
  28. R. Huang, G. Chen, M. Sun, C. Gao, Preparation and characterization of quaterinized chitosan/poly(acrylonitrile) composite nanofiltration membrane from anhydride mixture cross-linking, Sep. Purif. Technol., 58 (2008) 393–399.
  29. Y. Baek, J. Kang, P. Theato, J. Yoon, Measuring hydrophilicity of RO membranes by contact angles via sessile drop and captive bubble method: a comparative study, Desalination, 303 (2012) 23–28.
  30. J.V. Nicolini, C.P. Borges, H.C. Ferraz, Selective rejection of ions and correlation with surface properties of nanofiltration membranes, Sep. Purif. Technol., 171 (2016) 238–247.
  31. Q. Li, X. Pan, Z. Qu, X. Zhao, Y. Jin, H. Dai, B. Yang, Understanding the dependence of contact angles of commercially RO membranes on external conditions and surface features, Desalination, 309 (2013) 38–45.
  32. L. Paugam, C.K. Diawara, J.P. Schlumpf, P. Jaouen, F. Quéméneur, Transfer of monovalent anions and nitrates especially through nanofiltration membranes in brackish water conditions, Sep. Purif. Technol., 40 (2004) 237–242.
  33. Y. Marcus, A simple empirical model describing the thermodynamics of hydration of ions of widely varying charges, sizes, and shapes, Biophys. Chem., 51 (1994) 111–127.
  34. P.Y. Pontalier, A. Ismail, M. Ghoul, Mechanisms for the selective rejection of solutes in nanofiltration membranes, Sep. Purif. Technol., 12 (1997) 175–181.
  35. E.M. Vrijenhoek, J.J. Waypa, Arsenic removal from drinking water by a “loose” nanofiltration membrane, Desalination, 130 (2000) 265–277.
  36. M. Pontié, C.K. Diawara, M. Rumeau, Streaming effect of single electrolyte mass transfer in nanofiltration: potential application for the selective defluorination of brackish drinking waters, Desalination, 151 (2003) 267–274.
  37. H.M. Krieg, S.J. Modise, K. Keizer, H.W.J.P. Neomagus, Salt rejection in nanofiltration for single and binary salt mixtures in view of sulphate removal, Desalination, 171 (2005) 205–215.
  38. A. Lhassani, Défluoruration d’eaux par nanofiltration saumâtres Brackish water defluoridation by nanofiltration, J. Sci. Technol., 7 (2008) 32–38.
  39. Z.V.P. Murthy, S.K. Gupta, Estimation of mass transfer coefficient using a combined nonlinear membrane transport and film theory model, Desalination, 109 (1997) 39–49.
  40. S. Jain, S.K. Gupta, Analysis of modified surface force pore flow model with concentration polarization and comparison with Spiegler-Kedem model in reverse osmosis systems, J. Membr. Sci., 232 (2004) 45–61.
  41. F. Wu, L. Feng, L. Zhang, Rejection prediction of isopropylantipyrine and antipyrine by nanofiltration membranes based on the Spiegler-Kedem-Katchalsky model, Desalination, 362 (2015) 11–17.
  42. C.V. Gherasim, J. Cuhorka, P. Mikulášek, Analysis of lead(II) retention from single salt and binary aqueous solutions by a polyamide nanofiltration membrane: experimental results and modelling, J. Membr. Sci., 436 (2013) 132–144.
  43. H. Dach, Comparaison des opérations de nano filtration Et d’osmose inverse pour le dessalement Sélectif des eaux saumâtres: de l’échelle du Laboratoire au pilote industriel, Faculté des Sciences et Techniques de Fès, PhD Thesis, 2008.