1. Metcalf and Eddy, Wastewater Engineering Treatment and Reuse, Fourth Edition, McGraw Hill, 2003.
  2. I.F. Cheng, R. Muftikian, Q. Fernando, N. Korte, Reduction of nitrate to ammonia by zero valent iron, Chemosphere, 35 (1997) 2689–2695.
  3. Y.H. Huang, T.C. Zhang, Effects of low pH on nitrate reduction by iron powder, Water Res., 38 (2004) 2631–2642.
  4. Y.M. Chen, C.W. Li, S.S. Chen, Fluidized zero valent iron bed reactor for nitrate removal, Chemosphere, 59 (2005) 753–759.
  5. M. Kumar, S. Chakraborty, Chemical denitrification of water by zero valent magnesium powder, J. Hazard. Mater., B135 (2006) 112–121.
  6. M. Dore, Ph Simon, A. Deguin, J. Victot, Removal of nitrate in drinking water by ion exchange impact on the chemical quality of treated water, Water Res., 20 (1986) 221–232.
  7. J.J. Schoeman, A. Steyn, Nitrate removal with reverse osmosis in a rural area in South Africa, Desalination, 155 (2003) 15–26.
  8. F. Hell, J. Lahnsteiner, H. Frischherz, G. Baumgartner, Experience with full-scale electro dialysis for nitrate and hardness removal, Desalination, 117 (1998) 173–180.
  9. A. Pintar, J. Batista, J. Levec, Catalytic denitrification: direct and indirect removal of nitrates from potable water, Catal. Today, 66 (2001) 503–510.
  10. MI.M. Soares, Biological denitrification of groundwater, Water, Air, Soil Pollution, 123 (2000) 183–193.
  11. L.W. Canter, Nitrates in Groundwater, CRC Press, Boca Raton, 1997.
  12. K.S. Haugen, M.J. Semmens, P.J. Novak, A novel in-situ technology for the treatment of nitrate contaminated groundwater, Water Res., 36 (2002) 3497–3506.
  13. C.D. Rocca, V. Belgiorno, S. Meric, Overview of in-situ applicable nitrate removal processes, Desalination, 204 (2007) 46–62.
  14. Y. Cengeloglu, A. Tor, M. Ersoz, G. Arslan, Removal of nitrate from aqueous solution by using red mud, Sep. Purif., Technol., 51 (2006) 374–378.
  15. A. Bhatnagar, M. Ji, Y.-H. Choi, W. Jung, S.-H. Lee, S.-J. Kim, G. Lee, H.Suk, H.-S. Kim, B. Min, S.-H. Kim, B.-H. Jeon, J.-W. Kang, Removal of nitrate from water by adsorption onto zinc chloride treated activated carbon, Sep. Sci. Technol., 43 (2008) 886–907.
  16. K. Mizuta, T. Matsumoto, Y. Hatate, K. Nishihara, T. Nakanishi, Removal of nitrate-nitrogen from drinking water using bamboo powder charcoal, Bioresour. Technol., 95 (2004) 255– 257.
  17. N. Öztürk, T.E. Bektas, Nitrate removal from aqueous solution by adsorption onto various materials, J. Hazard. Mater., B112 (2004) 155–162.
  18. Y. Xi, M. Mallavarapu, R. Naidu, Preparation, characterization of surfactants modified clay minerals and nitrate adsorption, Appl. Clay Sci., 48 (2010) 92–96.
  19. K. Hosni, E. Srasra, Nitrate adsorption from aqueous solution by MII–Al–CO3 layered double hydroxide, Inorg. Mater., 44 (2008) 742–749.
  20. M.M. Socías-Viciana, M.D. Urea-Amate, E. González-Pradas, M.J. García-Cortés, C. López-Teruel, Nitrate removal by calcined hydrotalcite-type compounds, Clays Clay Miner., 56 (2008) 2–9.
  21. M. Islam, R. Patel, Nitrate sorption by thermally activated Mg/Al chloride hydrotalcite-like compound, J. Hazard. Mater., 169 (2009) 524–531.
  22. M. Islam, P.C. Mishra, R. Patel, Physicochemical characterization of hydroxya-patite and its application towards removal of nitrate from water, J. Environ. Manage., 91 (2010) 1883–1891.
  23. J.N. Cevaal, W.B. Suratt, J.E. Burke, Nitrate removal and water quality improvements with reverse osmosis for Brighton, Colorado, Desalination, 103 (1995) 101–111.
  24. B. Van der Bruggen, C. Vandecasteele, Removal of pollutants from surface water and groundwater by nanofilteration: overview of possible applications in the drinking water industry, Environ. Poll., 122 (2003) 435–445.
  25. Y.-H. Kim, E.-D. Hwang, W.S. Shin, J.-H. Choi, T.W. Ha, S.J. Choi, Treatments of stainless steel wastewater containing a high concentration of nitrate using reverse osmosis and nanomembranes, Desalination, 202 (2007) 286–292.
  26. L.A. Richards, M. Vuachere, A.I. Schafer, Impact of pH on the removal of fluoride, nitrate and boron by nanofiltration/ reverse osmosis, Desalination, 261 (2010) 331–337.
  27. M. Nuashad, M.A. Khan, Z.A. Alothman, M.R. Khan, Adsorptive removal of nitrate from synthetic and commercially available bottled water samples using De-Acidite FF-IP resin, J. Ind. Eng. Chem., 20 (2014) 3400–3407.
  28. M.R. Khan, S.M. Wabaidur, Z.A. Alothman, R. Busquets, M. Naushad, Method for the fast determination of bromate, nitrate and nitrite by ultra-performance liquid chromatography-mass spectrometry and their monitoring in Saudi Arabian drinking water with chemometric data treatment, Talanta, 152 (2016) 513–520.
  29. R. Kamaraj, A. Pandiarajan, S. Jayakirub, M. Naushad, S. Vasudeven, Kinetics, thermodynamics and isotherm modeling for removal of nitrate from liquids by facile one-part electrosynthesized nano zinc hydroxide, J. Molec. Liq., 215 (2016) 204–211.
  30. N. Bektaş, H. Akbulut, H. Inan, A. Dimoglo, Removal of phosphate from aqueous solutions by electro-coagulation, J. Hazard. Mater., 106 (2004) 101– 105.
  31. E. Yildiz, Phosphate removal from water by fly y ash using crossflow microfiltration, Sep. Purif. Technol., 35 (2004) 241– 252.
  32. H.-G. Kim, H.-N. Jang, H.-M. Kim, D.-S. Lee, T.-H. Chung, Effect of an electro phosphorous removal process on phosphorous removal and membrane permeability in a pilot-scale MBR, Desalination, 250 (2010) 629–633.
  33. E.M. van Voorthuizen, A. Zwijnenburg, M. Wessling, Nutrient removal by NF and RO membranes in decentralized sanitation system, Water Res., 39 (2005) 3657–3667.
  34. J.Lv, K.Y. Wang, T.-S. Chung, Investigation of amphoteric polybenzimidazole (PBI) nanofiltration hollow fiber membrane for both cation and anions removal, J. Membr. Sci., 310 (2008) 557–566.
  35. S.U. Hong, L. Ouyang, M.L. Bruening, Recovery of phosphate using multilayer polyelectrolyte nanofiltration membranes, J. Membr. Sci., 327 (2009) 2–5.
  36. D. Dolar, K. Kosutic, B. Vucic, RO/NF treatment of wastewater from fertilizer factory- removal of fluoride and phosphate, Desalination, 265 (2011) 237–241.
  37. L.S. Clesceri, A.E. Greenberg, A.D. Eaton, Standard Methods for the Examination of Water and Wastewater, 20th ed., WEF– APHA–AWWA, Washington, DC, 1998.
  38. M. Naushad, G. Sharma, A. Kumar, S. Sharma, A.A. Ghfar, A. Bhatnagar, F.J. Stadler, M.R. Khan, Efficient removal of toxic phosphate anions from aqueous environment using pectin based quaternary amino anion exchanger, Int. J. Biol. Macromol., 106 (2018) 1–10.
  39. T. Wajima, Y. Umeta, S. Narita, K. Sugawara, Adsorption behavior of fluoride ions using a titanium hydroxide-derived adsorbent, Desalination, 249 (2009) 323–330.
  40. X.-P. Liao, B. Shi, Adsorption of fluoride on zirconium(IV)-impregnated collagen fiber, Environ. Sci. Technol., 39 (2005) 4628–4632.
  41. N. Viswanathan, S. Meenakshi, Selective fluoride adsorption by a hydrotalcite/chitosan composite, Appl. Clay Sci., 48 (2010) 607–611.
  42. Y. Baba, K. Ohguma, Y. Kawano, Synthesis of chitosan derivatives and their adsorption properties for nitrate anion, Nippon Kagaku Kaishi, 1999 (1999) 467–472.
  43. C. Namasivayam, D. Sangeetha, Removal and recovery of nitrate from water by ZnCl2 activated carbon from coconut coir pith, an agricultural solid waste, Ind. J. Chem. Technol., 12 (2005) 513–521.
  44. H. Guan, E. Bestland, C. Zhu, H. Zhu, D. Albertsdottir, J. Hutson, C.T. Simmons, M. Ginic-Markovic, X. Tao, A.V. Ellis, Variation in performance of surfactant loading and resulting nitrate removal among four selected natural zeolites, J. Hazard. Mater., 183 (2010) 616–621.
  45. M.L. Bao, O. Griffini, D. Santianni, K. Barbieri, D. Burrini, F. Pantani, Removal of bromate ion from water using granular activated carbon, Water Res., 33 (1999) 2959–2970.
  46. W.J. Huang, Y.L. Cheng, Effect of characteristics of activated carbon on removal of bromate, Sep. Sci. Technol., 59 (2008) 101–107.
  47. A. Bhatnagar, Y.H. Choi, Y.J. Yoon, Y. Shin, B.-H. Jeon, J.-W. Kang, Bromate removal from water by granular ferric hydroxide (GFH), J. Hazard. Mater., 170 (2009) 134–140.
  48. R. Parette, F.S. Cannon, The removal of perchlorate from groundwater by activated carbon tailored with cationic surfactants, Water Res., 39 (2005) 4020–4028.
  49. Y. Xie, S. Li, F. Wang, G. Liu, Removal of perchlorate from aqueous solution using protonated cross-linked chitosan, Chem. Eng. J., 156 (2010) 56–63.
  50. R. Mahmudov, C.P. Huang, Perchlorate removal by activated carbon adsorption, Sep. Purif. Technol., 70 (2010) 329–337.
  51. Z.A. AL-Othman, R. Ali, M. Naushad, Hexavalent chromium removal from aqueous medium by activated carbon prepared from peanut shell: Adsorption kinetics, equilibrium and thermodynamic studies, Chem. Eng. J., 184 (2012), 238–247.
  52. S.M. Alshehri, M. Naushad, T. Ahamad, Z.A. ALOthman, A. Aldalbahi, Synthesis, characterization of curcumin based ecofriendly antimicrobial bio-adsorbent for the removal of phenol from aqueous medium, Chem. Eng. J., 254 (2014) 181–189.
  53. A.A. Alqadami, M. Naushad, Z.A. Alothman, A.A. Ghfar, Novel metal−organic framework (MOF) based composite material for the sequestration of U(VI) and Th(IV) metal ions from aqueous environment, ACS Appl. Mater. Interf., 9 (2017) 36026–36037.
  54. M. Naushad, T Ahamad, B.M. Al-Maswari, A.A. Alqadami, S.M. Alshehri, Nickel ferrite bearing nitrogen-doped mesoporous carbon as efficient adsorbent for the removal of highly toxic metal ion from aqueous medium, Chem. Eng. J., 330 (2017) 1351–1360.
  55. A.B. Albadarin, M.N. Collins, M. Naushad, S. Shirazian, G. Walker, C. Mangwandi, Activated lignin chitosan extruded blends for efficient adsorption of methylene blue, Chem. Eng. J., 307 (2016) 264–272.
  56. M. Ghasemi, M. Naushad, N. Ghasemi, Y. Khosravi-fard, Adsorption of Pb(II) from aqueous solution using new adsorbents prepared from agricultural waste: Adsorption isotherm and kinetic studies, J. Ind. Eng. Chem., 20 (2014) 2193–2199.