A critical study on efficiency of different materials for fluoride removal from aqueous media

Chemistry Central Journal

Volumn 7, Issue 1, 2013, Pages

  Tomar, Vaishali ^a   Kumar, Dinesh ^a  

^a BANASTHALI UNIVERSITY   (India)

Author keywords

Adsorbents; Adsorption; Fluoride; Removal

Indexed keywords

EID: 84874803600     PISSN: None     EISSN: 1752153X     Source Type: Journal    
DOI: 10.1186/1752-153X-7-51     Document Type: Review

References (136)

1. Amini M, Mueller K, Abbaspour KC, Rosenberg T, Afyuni M, Møller KN, Sarr M, Johnson CA. Statistical modeling of global geogenic fluoride contamination in groundwaters. Environ Sci Technol 2008, 42:3662-3668. 10.1021/es071958y, 18546705.
2. Mahramanlioglu M, Kizilcikli I, Bicer IO. Adsorption of fluoride from aqueous solution by acid treated spent bleaching earth. J Fluorine Chem 2002, 115:41-47.
3. Jamodei AV, Sapkal VS, Jamode VS. Defluoridation of water using inexpensive adsorbents. J Ind Inst Sci 2004, 84:163-171.
4. Gonzales C, Hotokezaka H, Karadeniz EI, Miyazaki T, Kobayashi E, Darendeliler MA, Yoshida N. Effects of fluoride intake on orthodontic tooth movement and orthodontically induced root respiration. Am. J Ortho Dentofacial Orthop 2004, 139:196-205.
5. Solangi IB, Memon S, Bhanger MI. Removal of fluoride from aqueous environment by modified amberlite resin. J Hazard Mater 2009, 171:815-819. 10.1016/j.jhazmat.2009.06.072, 19608334.
6. Fan X, Parker DJ, Smith MD. Adsorption kinetics of fluoride on low cost materials. Water Res 2003, 37:4929-4937. 10.1016/j.watres.2003.08.014, 14604639.
7. Zhou Y, Yu C, Shan Y. Adsorption of fluoride from aqueous solution on La3+ impregnated crosslinked gelatin. Sep Purif Technol 2004, 36:89-94.
8. Islam M, Patel RK. Thermal activation of basic oxygen furnace slag and evaluation of its fluoride removal efficiency. Chem Eng J 2011, 169:68-77.
9. Health Effects http://www.fluoridealert.org/health/, Health Effects.
10. Harrison PTC. Fluoride in water: a UK perspective. J Fluorine Chem 2005, 126:1448-1456.
11. Apambire WB, Boyle DR, Michel FA. Geochemistry, genesis, and health implications of fluoriferous groundwaters in the upper regions of Ghana. Environ Geochem 1997, 33:13-24.
12. Tressaud A. Fluorine and the Environment: Agrochemicals, Archaeology 2006, Amsterdam; Boston: Elsevier, Green Chemistry & Water, (series editor): Advances in Fluorine Science, vol. 2.
13. Ghorai S, Pant KK. Equilibrium, kinetics and breakthrough studies for adsorption of fluoride on activated alumina. Sep Purif Technol 2005, 42:265-271.
14. Sujana MG, Thakur RS, Rao SB. Removal of fluoride from aqueous solution by using alum sludge. J Colloid Interface Sci 1998, 206:94-101. 10.1006/jcis.1998.5611, 9761632.
15. Huang CJ, Liu JC. Precipitate flotation of fluoride-containing wastewater from a semiconductor manufacturer. Water Res 1999, 33:3403-3412.
16. Simons R. Trace element removal from ash dam waters by nanofiltration and diffusion dialysis. Desalination 1993, 89:325-341.
17. Sehn P. Fluoride removal with extra low energy reverse osmosis membranes: three years of large scale field experience in Finland. Desalination 2008, 223:73-84.
18. Hu CY, Lo SL, Kuan WH. Effect of co-exiting anions on fluoride removal in electrocoagulation process using aluminium electrodes. Water Res 2003, 37:4513-4523. 10.1016/S0043-1354(03)00378-6, 14511722.
19. Ayoob S, Gupta AK, Bhat VT. A conceptual overview on sustainable technologies for defluoridation of drinking water and removal mechanisms. Crit Rev Environ Sci Technol 2008, 38:401-470.
20. WHO Guidelines for drinking-water quality 2004, 375-378. Geneva: World Health Organisation, 3, 301-303, WHO.
21. Meenakshi MRC. Fluoride in drinking water and its removal. J Hazard Mater 2006, 137:456-463. 10.1016/j.jhazmat.2006.02.024, 16600479.
22. Mohapatra M, Anand S, Mishra BK, Giles DE, Singh P. Review of fluoride removal from drinking water. J Environ Manage 2009, 91:67-77. 10.1016/j.jenvman.2009.08.015, 19775804.
23. Goswami A, Purkait MK. The defluoridation of water by acidic alumina. Chem Eng Res and Des 2012, 90:2316-2324.
24. Farrah H, Slavek J, Pickering WF. Fluoride interactions with hydrous aluminum oxides and alumina. Aust J Soil Res 1987, 25:55-69.
25. Ku Y, Chiou HM. The adsorption of fluoride ion from aqueous solution by activated alumina. Water Air Soil Pollut 2002, 133:349-361.
26. Bahena JLR, Cabrera AR, Valdivieso AL, Urbina RH. Fluoride adsorption onto α-Al2O3 and its effect on the zeta potential at the alumina - aqueous electrolyte interface. Sep Sci Technol 2002, 37:1973-1987.
27. Ghorai S, Pant KK. Investigations on the column performance of fluoride adsorption by activated alumina in a fixed-bed. Chem Eng J 2004, 98:165-173.
28. Pietrelli L. Fluoride wastewater treatment by adsorption onto metallurgical grade alumina. Anal Chim 2005, 95:303-312.
29. Valdivieso AL, Bahena JLR, Song S, Urbina H. Temperature effect on the zeta potential and fluoride adsorption at the α-Al2O3/aqueous solution interface. J Colloid Interface Sci 2006, 298:1-5. 10.1016/j.jcis.2005.11.060, 16378622.
30. Shimelis B, Zewge F, Chandravanshi BS. Removal of excess fluoride from water by aluminum hydroxide. Bull Chem Soc Ethiopia 2006, 20:17-34.
31. Bishop PL, Sansoucy G. Fluoride removal from drinking water by fluidized activated alumina adsorption. J Am Water Works Assoc 1978, 70:554-559.
32. Choi WW, Cen KY. Removal of fluoride from waters by adsorption. J Am Water Works Assoc 1979, 71:562-570.
33. Hao OJ, Huang CP. Adsorption characteristics of fluoride onto hydrous alumina. J Environ Eng 1986, 112:1054-1069.
34. Fletcher HR, Smith DW, Pivonka P. Modeling the sorption of fluoride onto alumina. J Environ Eng 2006, 132:229-246.
35. Frankowski M. Simultaneous determination of aluminum, aluminum fluoride complexes and iron in groundwater samples by new HPLC-UVVIS method. Microchem J 2012, 101:80-86.
36. Wasay SA, Tokunaga S, Park SW. Removal of hazardous anions from aqueous solutions by La(III)- and Y(lll)-impregnated alumina. Sep Sci Technol 1996, 31:1501-1514.
37. Puri BK, Balani S. Trace determination of fluoride using lanthanum hydroxide supported on alumina. J Environ Sci Health 2000, 35:109-121.
38. Tripathy SS, Bersillon JJ, Gopal K. Removal of fluoride from drinking water by adsorption onto alum-impregnated activated alumina. Sep Purif Technol 2006, 50:310-317.
39. Bansiwal A, Pillewan P, Biniwale RB, Rayalu SS. Copper oxide incorporated mesoporous alumina for defluoridation of drinking water. Micropor Mesopor Mat 2010, 129:54-61.
40. Shihabudheen MM, Sharma AK, Philip L. Manganese-oxide-coated alumina: A promising sorbent for defluoridation of water. Water Res 2006, 40:3497-3506. 10.1016/j.watres.2006.08.007, 17011020.
41. Teng SX, Wang SG. Removal of fluoride by hydrous manganese oxide-coated alumina: Performance and mechanism. J Hazard Mater 2009, 168:1004-1011. 10.1016/j.jhazmat.2009.02.133, 19329249.
42. Camacho LM, Torres A, Saha D, Deng S. Adsorption equilibrium and kinetics of fluoride on sol-gel- derived activated alumina adsorbents. J Colloid Interface Sci 2010, 349:307-313. 10.1016/j.jcis.2010.05.066, 20566204.
43. Bhaumika M, Leswifia TY, Maity A, Srinivasu VV, Onyango MS. Removal of fluoride from aqueous solution by polypyrrole/Fe3O4 magnetic nanocomposite. J Hazard Mater 2011, 186:150-159. 10.1016/j.jhazmat.2010.10.098, 21112695.
44. Emamjomeh MM, Sivakumar M, Varyani AS. Analysis and the understanding of fluoride removal mechanisms by an electrocoagulation/flotation (ECF) process. Desalination 2011, 275:102-106.
45. Sujana MG, Soma G, Vasumathi N, Anans S. Studies on fluoride adsorption capacities of amorphous Fe/Al mixed hydroxides from aqueous solutions. J Fluorine Chem 2009, 130:749-754.
46. Chen L, Wu HX, Wang TJ, Jin Y, Zhang Y, Dou XM. Granulation of Fe-Al-Ce nano-adsorbent for fluoride removal from drinking water by spray coating on sand in a fluidized bed. Powder Technol 2009, 193:59-64.
47. Sun Y, Fang Q, Dong J, Cheng X, Xu J. Removal of Fluoride form drinking water by natural Stilbite Zeolite modified with Fe (III). Desalination 2011, 277:121-127.
48. Chen N, Zhang Z, Feng C, Li M, Zhu D, Sugiura N. Studies on fluoride adsorption of iron-impregnated granular ceramics from aqueous solution. Mater Chem Phys 2011, 125:293-298.
49. Streat M, Hellgardt K, Newton NLR. Hydrous ferric oxide as an adsorbent in water treatment: Part 3: Batch and mini-column adsorption of arsenic, phosphorus, fluorine and cadmium ions. Process Saf. Environ 2008, 86:21-30.
50. Liu Q, Guo H, Shan Y. Adsorption of fluoride on synthetic siderite from aqueous solution. J Fluorine Chem 2010, 131:635-641.
51. Chen L, He BY, He S, Wang TJ, Su CL, Jin Y. Fe-Ti oxide nano-adsorbent synthesized by co-precipitation for fluoride removal from drinking water and its adsorption mechanism. Powder Technol 2012, 227:3-8.
52. Mohapatra M, Hariprasad D, Mohapatra L, Anand S, Mishra BK. Mg-doped nano ferrihydrite - A new adsorbent for fluoride removal from aqueous solutions. Appl Surf Sci 2012, 258:4228-4236.
53. Bia G, Pauli CPD, Borgnino L. The role of Fe(III) modified montmorillonite on fluoride mobility: Adsorption experiments and competition with phosphate. J Environ Manage 2012, 100:1-9.
54. Vithanagea M, Jayarathnaa L, Rajapakshaa AU, Dissanayakea CB, Bootharajub MS, Pradeep T. Modeling sorption of fluoride on to iron rich laterite Colloids and Surfaces A. Physicochem Eng Aspects 2012, 398:69-75.
55. Turner BD, Binning P, Stipp SLS. Fluoride removal by calcite: evidence for fluorite precipitation and surface adsorption. Environ Sci Technol 2005, 39:9561-9568. 10.1021/es0505090, 16475336.
56. Islam M, Patel RK. Evaluation of removal efficiency of fluoride from aqueous solution using quick lime. J Hazard Mater 2007, 143:303-310. 10.1016/j.jhazmat.2006.09.030, 17046155.
57. Jain S, Jayaram RV. Removal of fluoride from contaminated drinking water using unmodified and aluminium hydroxide impregnated blue lime stone waste. Sep Sci Technol 2009, 44:1436-1451.
58. Mourabet M, Rhilassi AE, Boujaady HE, Ziatni MB, Hamri RE, Taitai A. Removal of fluoride from aqueous solution by adsorption on Apatitic tricalcium phosphate using Box-Behnken design and desirability function. Appl Surf Sci 2012, 258:4402-4410.
59. Yang T, Kim C, Jho J, Kim IW. Regulating fluoride uptake by calcium phosphate minerals with polymeric additives. Colloids and Surfaces A. Physicochem. Eng. Aspects 2012, 401:126-136.
60. Sakhare N, Lunge S, Rayalu R, Bakardjiva S, Subrt J, Devotta S, Labhsetwar N. Defluoridation of water using calcium aluminate material. Chem Eng J 2012, 203:406-414.
61. Zhongzhi J, Zhonglin C, Min Y, Yu Z, Guibai L. Adsorption of fluoride ion by inorganic cerium based adsorbent. High Technol Lett 2004, 10:83-86.
62. Mohapatra D, Mishra D, Mishra SP, Chaudhury GR, Das RP. Use of oxide minerals to abate fluoride from water. J Colloid Interface Sci 2004, 275:355-359. 10.1016/j.jcis.2004.02.051, 15178259.
63. Xiuru Y, Kuanxiu S, Jianping W, Liuchang H, Zhaohui Z. Preparation of CeO2-TiO2/SiO2 and its removal properties for fluoride ions. J Rare Earth 1998, 16:279-280.
64. Zhu P, Wang H, Sun B, Deng P, Hou S, Yu Y. Adsorption of fluoride from aqueous solution by magnesia-amended silicon dioxide granules. J Chem Technol Biotech 2009, 84:1449-1455.
65. Chang CF, Chang CY, Chang TLHF, Chang CY, Hsu TL. Removal of fluoride from aqueous solution with the superparamagnetic zirconia material. Desalination 2011, 279:375-382.
66. Guo Q, Reardon EJ. Fluoride removal from water by meixnerite and its calcination product. Appl Clay Sci 2012, 56:7-15.
67. Liu H, Deng S, Li Z, Yu G, Huang J. Preparation of Al-Ce hybrid adsorbent and its application for defluoridation of drinking water. J Hazard Mater 2010, 179:424-430. 10.1016/j.jhazmat.2010.03.021, 20347522.
68. Wajima T, Umeta Y, Narita S, Sugawara K. Adsorption behaviour of fluoride ions using a titanium hydroxide- derived adsorbent. Desalination 2009, 249:323-330.
69. Karthikeyan M, Elango KP. Removal of fluoride from water using aluminium containing compounds. J Environ Sci 2009, 21:1513-1518.
70. Sundaram CS, Viswanathan N, Meenakshi S. Defluoridation of water using magnesia/chitosan composite. J Hazard Mater 2009, 163:618-624. 10.1016/j.jhazmat.2008.07.009, 18723280.
71. Kang J, Li B, Song J, Li D, Yang J, Zhan W, Liu D. Defluoridation of water using calcined magnesia/pullulan composite. Chem Eng J 2011, 166:765-771.
72. Garmes H, Persin F, Sandeaux J, Pourcelly G, Mountadar M. Defluoridation of groundwater by a hybrid process combining adsorption and Donnan dialysis. Desalination 2002, 145:287-291.
73. Gopal V, Elango KP. Studies on defluoridation of water using magnesium titanate. Ind J Chem Tech 2010, 17:28-33.
74. Sujana MG, Anand S. Fluoride removal studies from contaminated ground water by using bauxite. Desalination 2011, 267:222-227.
75. Jamasbian F, Attar SJ, Saini DR. Defluoridation Of Water Using Bauxite Adsorbent. Int J of Engg Res & Indu Appls 2009, 2:247-257.
76. Denq S, Liu H, Zhou W, Huang J, Yu G. Mn-Ce oxide as a high-capacity adsorbent for fluoride removal from water. J Hazard Mater 2011, 186:1360-1366. 10.1016/j.jhazmat.2010.12.024, 21208743.
77. Sivasankar V, Ramachandramoorthy T, Darchen A. Manganese dioxide improves the efficiency of earthenware in fluoride removal from drinking water. Desalination 2011, 272:179-186.
78. Lakshminarayan N, Davangere AG. Evaluation of the water defluoridating potential of Brushite-Calcite and two indigenous bioadsorbent materials. Fluoride 2011, 44:27-29.
79. Alagumuthu G, Veeraputhiran V, Venkataraman R. Fluoride sorption using cynodon dactylon-based activated carbon. Hem. Ind 2011, 65(1):23-35.
80. Yao R, Meng F, Zhang L, Ma D, Wang M. Defluoridation of water using neodymium-modified chitosan. J Hazard Mater 2009, 165:454-460. 10.1016/j.jhazmat.2008.10.052, 19046805.
81. Viswanathan N, Sundaram C, Meenakshi S. Development of multifunctional chitosan beads for fluoride removal. J Hazard Mater 2009, 167:325-331. 10.1016/j.jhazmat.2008.12.123, 19200651.
82. Karthikeyan M, Kumar KKS, Elango KP. Batch sorption studies on the removal of fluoride ions from water using eco-friendly conducting polymer/bio-polymer composites. Desalination 2011, 267:49-56.
83. Jagtap S, Yenkie MK, Das S, Rayalu S. Synthesis and characterization of lanthanum impregnated chitosan flakes fopr fluoride removal in water. Desalination 2011, 273:267-275.
84. Ramanaiah SV, Mohan SV, Sarma PN. Adsorptive removal of fluoride from aqueous phase using waste fungus (Pleurotus ostreatus 1804) biosobent: Kinetics evalution. Ecol Eng 2007, 31:47-56.
85. Rodriguez JLD, Vladimir A, Barrios E, Mendez JRR. Removal of fluoride from drinking water by a chitin-based biocomposite in fixed-bed columns. J Fluorine Chem 2012, 140:99-103.
86. Ganvir V, Das K. Removal of fluoride from drinking water using aluminum hydroxide coated rice husk ash. J Hazard Mater 2011, 185:1287-1294. 10.1016/j.jhazmat.2010.10.044, 21074319.
87. Ansari M, Kazemipour M, Dehghani M, Kazemipour M. The defluoridation of drinking water using multi-walled carbon nanotubes. J Fluorine Chem 2011, 132:516-520.
88. Cui H, Qian Y, An H, Sun C, Zhai J, Li Q. Electrochemical removal of fluoride from water by PAOA modified carbon felt electrodes in a continuous flow reactor. Water Res 2012, 46:3943-3950. 10.1016/j.watres.2012.04.039, 22595483.
89. Bhargava DS, Killedar DJ. Fluoride adsorption on fishbone charcoal through a moving media adsorber. Water Res 1992, 26:781-788.
90. Janardhana C, Rao GN, Sathish RS, Kumar PS, Kumar VA, Madhav MV. Study on defluoridation of drinking water using zirconium ion impregnated activated charcoals. Indian J Chem Technol 2007, 14:350-354.
91. Gupta AK, Deva D, Sharma A, Verma N. Adsorptive removal of fluoride by micro-nanohierarchal web of activated carbon fibers. Ind. Eng. Chem. Res 2009, 48:9697-9707.
92. Ma Y, Wang SG, Fan M, Gong WX, Gao BY. Characteristics and defluoridation performance of granular activated carbons coated with manganese oxides. J Hazard Mater 2009, 168:1140-1146. 10.1016/j.jhazmat.2009.02.145, 19345485.
93. Karthikeyan M, Elango KP. Removal of fluoride from aqueous solution using graphite: A kinetic and thermodynamic study. Indian J Chem Technol 2008, 15:525-532.
94. Montoya VH, Montoya LAR, Petriciolet AB, Morán MAM. Optimizing the removal of fluoride from water using new carbons obtained by modification of nut shell with a calcium solution from egg shell. Biochem Eng J 2012, 62:1-7.
95. Li Y, Zhang P, Du Q, Peng X, Liu T, Wang Z, Xi Y, Zhang W, Wang K, Zhu H, Wu D. Adsorption of fluoride from aqueous solution by Grapheme. J Colloid Interface Sci 2011, 363:348-354. 10.1016/j.jcis.2011.07.032, 21821258.
96. Sivasankar V, Murugesh S, Rajkumar S, Darchen A. Cerium dispersed in carbon (CeDC) and its adsorption behavior: A first example of tailored adsorbent for fluoride removal from drinking water. Chem Eng J 2013, 214:45-54.
97. Kishore M, Hanumantharao Y. Validation of defluoridation method with " Acacia Arabica" plant by product through 2n factorial experimentation- A statistical approach. Int J Appl Biol & Pharma Technol 2010, 1:1230-1235.
98. Rao VS, Chakrapani C, Babu CS, Rao KS, Rao MN, Sinha D. Studies on sorption of fluoride by prepared activated Kaza's carbons. Der Pharma Chemica 2011, 3:73-83.
99. Sivasamy A, Singh KP, Mohan D, Maruthamuthu M. Studies on defluoridation of water by coal-based sorbents. J Chem Technol Biotechnol 2001, 76:717-722.
100. Borah L, Dey NC. Removal of fluoride from low TDS water using low grade coal. Indian J Chem Technol 2009, 16:361-363.
101. Moges G, Zewge F, Socher M. Preliminary investigations on the defluoridation of water using fired clay chips. J African Earth Sci 1996, 22:479-482.
102. Coetzee PP, Coetzee LL, Puka R, Mubenga S. Characterisation of selected South African clays for defluoridation of natural waters. ISSN 0378-4738. Water S.A 2003, 29:331-338.
103. Subramanian E, Ramalakshmi RD. Pristine, purified and polyaniline-coated tamarind seed (Tamarindus indica) biomaterial powders for defluoridation: synergism and enhancement in fluoride adsorption by polyaniline coating. J Sci Ind Res 2010, 69:621-628.
104. Sivasankar V, Rajkumar S, Murugesh S, Darchen A. Influence of shaking or stirring dynamic methods in the defluoridation behaviour of activated tamarind fruit shell carbon. Chem Eng J 2012, 197:162-172.
105. Murugan M, Subramanian E. Studies on defluoridation of water by Tamarind seed, an unconventional biosorbent. J Water Health 2006, 4:453-461.
106. Dey S, Swarup D, Saxena A, Dan A. In vivo efficacy of tamarind (Tamarinds indica) fruit extract on experimental fluoride exposure in rats. Res Vet Sci 2011, 91(3):422-425. 10.1016/j.rvsc.2010.09.013, 20980037.
107. Asgaria G, Roshanib B, Ghanizadeh G. The investigation of kinetic and isotherm of fluoride adsorption onto functionalize pumice stone. J Hazard Mater 2012, 217-218:123-132.
108. Kumar E, Bhatnagara A, Kumar U, Sillanpää M. Defluoridation from aqueous solutions by nano-alumina: Characterization and sorption studies. J Hazard Mater 2011, 186:1042-1049. 10.1016/j.jhazmat.2010.11.102, 21177029.
109. Li YH, Wang S, Cao A, Zhao D, Zhang X, Xu C, Luan Z, Ruan D, Liang J, Wu D, Wei B. Adsorption of fluoride from water by amorphous alumina supported on carbon nanotubes. Chem Phys Lett 2001, 350:412-416.
110. Oguz E. Equilibrium isotherms and kinetics studies for the sorption of fluoride on light weight concrete materials. Colloids Surf. A: Physicochem Eng Aspects 2007, 295:258-263.
111. Kagne S, Jagtap S, Dhawade P, Kamble SP, Devotta S, Rayalu SS. Hydrated cement: A promising adsorbent for the removal of fluoride from aqueous solution. J Hazard Mater 2008, 154:88-95. 10.1016/j.jhazmat.2007.09.111, 18006151.
112. Ayoob S, Gupta AK. Insights into isotherm making in the sorptive removal of fluoride from drinking water. J Hazard Mater 2008, 152:976-985. 10.1016/j.jhazmat.2007.07.072, 17822839.
113. Gao S, Cui J, Wei Z. Study on the fluoride adsorption of various apatite materials in aqueous solution. J Fluorine Chem 2009, 130:1035-1041.
114. Gao S, Sun R, Wei Z, Zhao H, Li H, Hu F. Size-dependent defluoridation properties of synthetic hydroxyapatite. J. Fluorine. Chem 2009, 130:550-556.
115. Poinern GEJ, Ghosh MK, Ng YJ, Issa TB, Anand S, Singh P. Defluoridation behavior of nanostructured hydroxyapatite synthesized through an ultrasonic and microwave combined technique. J Hazard Mater 2011, 185:29-37. 10.1016/j.jhazmat.2010.08.087, 21036472.
116. Wang Y, Chen N, Wei W, Cui J, Wei Z. Enhanced adsorption of fluoride from aqueous solution onto nanosized hydroxyapatite by low-molecular-weight organic acids. Desalination 2011, 276:161-168.
117. Yu X, Tong SM, Zuo J. Removal of fluoride from drinking water by cellulose@hydroxyapatite nanocomposites. Carbohyd. Polym 2013, 92:269-275.
118. Nie Y, Hu C, Kong C. Enhanced fluoride adsorption using Al (III) modified calcium hydroxyapatite. J Hazard Mater 2012, 233-234:194-199.
119. Zhang D, Luo H, Zheng L, Wang K, Li H, Wang Y, Feng H. Utilization of waste phosphogypsum to prepare hydroxyapatite nanoparticles and its application towards removal of fluoride from aqueous solution. J Hazard Mater 2012, 241-242:418-426.
120. Malakootian M, Fatehizadeh A, Yousefi N, Ahmadian M, Moosazadeh M. Fluoride removal using regenerated spent bleaching earth (RSBE) from gound water: Case study on Kuhbonan water. Desalination 2011, 277:224-249.
121. Gupta VK, Ali I, Saini VK. Defluoridation of wastewaters using waste carbon slurry. Water Res 2007, 41:3307-3316. 10.1016/j.watres.2007.04.029, 17583767.
122. Das N, Pattanaik P, Das R. Defluoridation of drinking water using activated titanium rich bauxite. J Colloid Interface Sci 2005, 292:1-10. 10.1016/j.jcis.2005.06.045, 16126217.
123. Mohan XDD, Pittman CU, Yang S. Remediating fluoride from water using hydrous zirconium oxide. Chem Eng J 2012, 198-199:236-245.
124. Swaina SK, Patnaikb T, Singha VK, Jhaa U, Patelc RK, Dey RK. Kinetics, equilibrium and thermodynamic aspects of removal of fluoride from drinking water using meso-structured zirconium phosphate. Chem Eng J 2011, 171:1218-1226.
125. Poursaberi T, Hassanisadi M, Torkestani K, Zare M. Development of zirconium (IV)-metalloporphyrin grafted Fe3O4 nanoparticles for efficient fluoride removal. Chem Eng J 2012, 189-190:117-125.
126. Swaina SK, Mishrab S, Patnaikc T, Pateld RK, Jhaa U, Deye RK. Fluoride removal performance of a new hybrid sorbent of Zr(IV)-ethylenediamine. Chem Eng J 2012, 184:72-81.
127. Zhanga G, Hea Z, Xu W. A low-cost and high efficient zirconium-modified-Na-attapulgite adsorbent for fluoride removal from aqueous solutions. Chem Eng J 2012, 183:315-324.
128. Kagne S, Jagtap S, Thakare D, Devotta S, Rayalu SS. Bleaching powder: a versatile adsorbent for the removal of fluoride from aqueous solution. Desalination 2009, 243:22-31.
129. Li Z, Deng S, Zhang X, Zhou W, Huang J, Yu G. Removal of fluoride from water using titanium-based adsorbents. Front Environ Sci Engg China 2010, 4:414-420.
130. Karthikeyan M, Elango KP. Removal of fluoride ions from aqueous solution by conducting polypyrrol. J Hazard Mater 2009, 167:300-305. 10.1016/j.jhazmat.2008.12.141, 19233561.
131. Xu X, Li Q, Cui H, Pang J, Sun L, An H, Zhai J. Adsorption of fluoride from aqueous solution on magnesia-loaded fly ash cenospheres. Desalination 2011, 272:233-239.
132. Wang XH, Song RH, Yang HC, Shi YJ, Dang GB, Yang S, Zhao Y, Sun XF, Wang SG. Fluoride adsorption on carboxylated aerobic granules containing Ce(III). Bioresource Tech. 2013, 127:106-111.
133. Daifullah AAM, Yakout SM, Elreefy SA. Adsorption of fluoride in aqueous solutions using KMnO4-modified activated carbon derived from steam pyrolysis of rice straw. J Hazard Mater 2007, 147:633-643. 10.1016/j.jhazmat.2007.01.062, 17314006.
134. Islam M, Mishra PC, Patel R. Fluoride adsorption from aqueous solution by a hybrid thorium phosphate composite. Chem Eng J 2011, 166:978-985.
135. Ma Y, Shi F, Zheng X, Ma J, Gao C. Removal of fluoride from aqueous solution using granular acid-treated bentonite (GHB): Batch and column studies. J Hazard Mater 2011, 185:1073-1080. 10.1016/j.jhazmat.2010.10.016, 21044817.
136. Núnez MLJ, Riosa MS, Gardunob JC, Gutiérrez MTO. Effect of grain size and interfering anion species on the removal of fluoride by hydrotalcite-like compounds. Chem Eng J 2012, 181-182:371-375.