G. C. Aggarwal and N. T. Singh, Energy and economic returns from cattle dung as manure and fuel, Energy, vol.9, pp.87-90, 1984.

C. Aharoni and F. C. Tompkins, Kinetics of Adsorption and Desorption and the Elovich Equation. Advance in Catalysis and Related Subjects, 1970.

M. Amini, K. Mueller, K. C. Abbaspour, T. Rosenberg, M. Afyuni et al., Statistical modeling of global geogenic fluoride contamination in groundwaters, Environ. Sci. Technol, vol.42, pp.3662-3668, 2008.

S. K. Andezhath and G. Ghosh, Fluorosis management in India: the impact due to networking between health and rural drinking water supply agencies. Interdisciplinary perspectives on drinking water risk assessment and management, vol.260, pp.159-165, 2000.

A. Bhatnagar and M. Sillanpa¨a¨, Utilization of agro-industrial and municipal waste materials as potential adsorbents for water treatment -a review, Chem. Eng. J, vol.157, pp.277-296, 2010.

D. Bhattacharya and J. S. Yu, Activated carbon made from cow dung as electrode material for electrochemical double layer capacitor, J. Power Sources, vol.262, pp.224-231, 2014.

H. P. Boehm, Some aspects of the surface chemistry of carbon blacks and other carbons, Carbon, vol.32, pp.759-769, 1994.

I. D. Brouwer, A. D. Bruin, O. B. Dirks, and J. G. Hautvast, Unsuitability of World Health Organization guidelines for fluoride concentration in drinking water in Senegal, Lancet, vol.331, pp.223-225, 1988.

N. Chen, Z. Zhang, C. Feng, D. Zhu, Y. Yang et al., Preparation and characterization of porous granular ceramic containing dispersed aluminum and iron oxides as adsorbents for fluoride removal from aqueous solution, J. Hazard. Mater, vol.186, pp.863-868, 2011.

S. Chidambaram, S. Manikandan, A. L. Ramanathan, M. V. Prasanna, C. Thivya et al., A study on the defluoridation in water by using natural soil, Appl. Water Sci, vol.3, pp.741-751, 2013.

A. A. Daifullah, S. M. Yakout, and S. A. Elreefy, Adsorption of fluoride in aqueous solutions using KMnO 4 -modified activated carbon derived from steam pyrolysis of rice straw, J. Hazard. Mater, vol.147, pp.633-643, 2007.

D. D. Das, R. Mahapatra, J. Pradhan, S. N. Das, and R. S. Thakur, Removal of Cr(VI) from aqueous solution using activated cow dung carbon, J. Colloid. Interface Sci, vol.232, pp.235-240, 2000.

H. Demiral and I. Demiral, Surface properties of activated carbon prepared from wastes, Surf. Interface Anal, vol.40, pp.612-615, 2008.

H. Demiral, I. Demiral, B. Karabacakoglu, and F. Tumsek, Production of activated carbon from olive bagasse by physical activation, Chem. Eng. Res. Des, vol.89, pp.206-213, 2011.

J. M. Dias, M. C. Alvim-ferraz, M. F. Almeida, J. Rivera-utrilla, and M. Sanchez-polo, Waste materials for activated carbon preparation and its use in aqueous-phase treatment: a review, J. Environ. Manage, vol.85, pp.833-846, 2007.

M. M. Dubinin and L. V. Radushkevich, The equation of the characteristic curve of the activated charcoal, Proc. Acad. Sci. USSR. Phys. Chem. Sect, vol.55, pp.331-333, 1947.

S. E. Elaigwu, L. A. Usman, G. V. Awolola, G. B. Adebayo, and R. M. Ajayi, Adsorption of Pb(II) from aqueous solution by activated carbon prepared from cow dung, Adv. Natural Appl. Sci, vol.3, pp.442-446, 2009.

S. Erdal and S. N. Buchanan, A quantitative look at fluorosis, fluoride exposure, and intake in children using a health risk assessment approach, Environ. Health Perspect, vol.113, pp.111-117, 2005.

J. Farrell and M. Reinhard, Desorption of halogenated organics from model solids, sediments and soil under unsaturated conditions 2, Kinetics. Environ. Sci. Technol, vol.28, pp.63-72, 1994.

H. M. Freundlich, Uber die adsorption in losungen, Z. Phys. Chem, vol.57, pp.385-470, 1906.

S. Ghoari and K. K. Pant, Equilibrium, kinetics and breakthrough studies for adsorption of fluoride on activated alumina, Sep. Purif. Technol, vol.42, pp.265-271, 2005.

P. Grandjean and P. J. Landrigan, Developmental neurotoxocity of industrial chemicals, Lancet, vol.368, pp.2167-2178, 2006.

Y. S. Ho, D. A. Wase, and C. F. Forster, Kinetic studies of competitive heavy metal adsorption by Sphagnum moss peat, Environ. Technol, vol.17, pp.71-77, 1996.

J. Hussain, K. C. Sharma, and I. Hussain, Fluoride in drinking water and its ill affect on human health: a review, J. Tissue Res, vol.4, pp.263-273, 2004.

O. Ioannidou and A. Zabaniotou, Agricultural residues as precursors for activated carbon production -a review, Renew. Sustain. Energy Rev, vol.11, 1966.

N. Kabay, O. Arar, S. Samatya, U. Yu¨ksel, and M. Yu¨ksel, Separation of fluoride from aqueous solution by electrodialysis: effect of process parameters and other ionic species, J. Hazard. Mater, vol.153, pp.107-113, 2008.

D. J. Killedar and D. S. Bhargava, Effect of stirring rate and temperature on fluoride removal by fishbone charcoal, Indian J. Environ. Health, vol.35, pp.81-87, 1993.

D. Kolodynska, R. Wnetrzak, J. J. Leahy, M. H. Hayes, W. Kwapinski et al., Kinetic and adsorptive characterization of biochar in metal ions removal, Chem. Eng. J, vol.197, pp.295-305, 2012.

S. Lagergren, Zur theorie der sogenannten adsorption geloster stoffe, Kungliga Svenska Vetenskapsakademiens. Handligar, vol.24, pp.1-39, 1898.

I. Langmuir, The constitution and fundamental properties of solids and liquids, J. Am. Chem. Soc, vol.38, pp.2221-2295, 1916.

S. O. Lesmana, N. Febriana, F. E. Soetaredjo, J. Sunarso, and S. Ismadji, Studies on potential applications of biomass for the separation of heavy metals from water and wastewater, Biochem. Eng. J, vol.44, pp.19-41, 2009.

H. Lu, W. Zhang, Y. Yang, X. Huang, S. Wang et al., Relative distribution of Pb2+ sorption mechanisms by sludgederived biochar, Water Res, vol.46, pp.854-862, 2012.

J. S. Mattson and H. B. Mark, Activated Carbon: Surface Chemistry and Adsorption from Aqueous Solution, 1971.

S. Meenakshi and R. C. Maheswari, Fluoride in drinking water and its removal, J. Hazard. Mater, vol.137, pp.456-463, 2006.

D. Mohan, R. Sharma, V. K. Singh, P. Steele, and C. U. Pittman, Fluoride removal from water using bio-char, a green waste, low-cost adsorbent: equilibrium uptake and sorption dynamics modeling, Ind. Eng. Chem. Res, vol.51, pp.900-914, 2012.

T. A. Msagati, B. B. Mamba, V. Sivasankar, and K. Omine, Surface restructuring of lignite by bio-char of cuminum cyminumexploring the prospects in defluoridation followed by fuel applications, Appl. Surface Sci, vol.301, pp.235-243, 2014.

J. W. Murray, Aquatic Surface Chemistry: Chemical Processes at the Particle-Water Interface, vol.52, p.1742, 1988.

G. Newcombe, R. Hayes, and M. Drikas, Granular activated carbon: importance of surface properties in the adsorption of naturally occurring organics, Colloids Surf. A: Physicochem. Eng. Aspects, vol.78, pp.65-71, 1993.

T. Oh, B. Choi, Y. Shinogi, and Y. Chikushi, Effect of pH conditions on actual and apparent fluoride adsorption by biochar in aqueous media, Water Air Soil Pollut, vol.223, pp.3729-3738, 2012.

M. Pakula, M. Walczyk, S. Biniak, and A. Swiatkowski, Electrochemical and FTIR studies of the mutual influence of lead (II) and iron (II) and phenol on their adsorption from aqueous acid solution by modified activated carbons, Chemosphere, vol.69, pp.209-219, 2007.

P. Patnukao and P. Pavasant, Activated carbons from Eucalyptus camaldulensis Dehn bark using phosphoric acid activation, Bioresource Technol, vol.99, pp.8540-8543, 2008.

H. Paudyal, B. Pangeni, K. Inoue, H. Kawakita, K. Ohto et al., Preparation of novel alginate based anion exchanger from Ulva japonica and its application for the removal of trace concentrations of fluoride from water, Bioresource Technol, vol.148, pp.221-227, 2013.

R. Prasad, Fuel Efficient Cook Stores Using Cow Dung Cakes, Boiling Point, Issue 30 Soles and Subsides. Centre for Rural Development and Appropriate Technology, IIT, 1993.

K. Sasaki, M. Yoshida, B. Ahmmad, N. Fukumoto, and T. Hirajima, Sorption of fluoride on partially calcined dolomite, Colloid Surf A: Physicochem. Eng. Aspects, vol.435, pp.56-62, 2013.

M. N. Sepehr, V. Sivasankar, M. Zarrabi, and M. Kumar, Surface modification of pumice enhancing its fluoride adsorption capacity: an insight into kinetic and thermodynamic studies, Chem. Eng. J, vol.228, pp.192-204, 2013.

D. Shen, R. Xiao, S. Gu, and K. Luo, The pyrolytic behavior of cellulose in lignocellulosic biomass: a review, RSC Adv, vol.1, pp.1641-1660, 2011.

R. Sivabalan, S. Rengaraj, A. Banumathi, and V. Murugesan, Fluoride uptake characteristics of activated carbon from agricultural-waste, J. Sci. Ind. Res, vol.61, pp.1039-1045, 2002.

V. Sivasankar, T. Ramachandramoorthy, and A. Darchen, Manganese-oxide improves the efficiency of earthenware in fluoride removal from drinking water, Desalination, vol.272, pp.179-186, 2011.

V. Sivasankar, S. Rajkumar, S. Murugesh, and . Darchen, A influence of shaking or stirring dynamic methods in the defluoridation behavior of activated tamarind fruit shell carbon, Chem. Eng. J, vol.197, pp.162-172, 2012.

V. Sivasankar, S. Rajkumar, S. Murugesh, and A. Darchen, Tamarind (Tamarindus indica) fruit shell carbon: a calcium-rich promising adsorbent for fluoride removal from ground water, J. Hazard. Mater, pp.164-172, 2012.

V. Sivasankar, S. Murugesh, S. Rajkumar, and . 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, vol.214, pp.45-54, 2013.
URL : https://hal.archives-ouvertes.fr/hal-00806756

S. K. Swain, T. Padhi, T. Patnaik, R. K. Patel, U. Jha et al., Kinetics and thermodynamics of fluoride removal using cerium-impregnated chitosan, Desalination Water Treat, vol.13, pp.369-381, 2010.

M. Tahaikt, R. El-habbani, A. Ait-haddou, I. Achary, Z. Amor et al., Fluoride removal from groundwater by nanofiltration, Desalination, vol.212, pp.46-53, 2007.

Q. Q. Tang, J. Du, H. H. Ma, S. J. Jiang, and X. J. Zhou, Fluoride and children's intelligence: a meta-analysis, Biol. Trace Elem. Res, vol.126, pp.115-120, 2008.

E. Tchomgui-kamga, V. Alonzo, C. Nanseu-njiki, N. Audebrand, E. Ngameni et al., Preparation and characterization of charcoals that contain dispersed aluminum oxide as adsorbents for removal of fluoride from drinking water, Carbon, vol.48, pp.333-343, 2010.
URL : https://hal.archives-ouvertes.fr/hal-00825654

E. Tchomgui-kamga, E. Ngameni, and A. Darchen, Evaluation of removal efficiency of fluoride from aqueous solution using new charcoals that contain calcium compounds, J. Colloid. Interface Sci, vol.346, pp.494-499, 2010.
URL : https://hal.archives-ouvertes.fr/hal-00825649

S. S. Tripathy, J. L. Bersillon, and K. Gopal, Removal of fluoride from drinking water by adsorption onto alum-impregnated activated alumina, Sep. Purif. Technol, vol.50, pp.310-317, 2006.

V. P. Vinod and T. S. Anirudhan, Sorption of tannic acid on zirconium pillared clay, J. Chem. Technol. Biotechnol, vol.77, pp.92-101, 2001.

W. J. Weber and J. C. Morris, Equilibria and capacities for adsorption on carbon, J. Sanitary Eng. Div, vol.90, pp.79-107, 1964.

, World Health Organisation, Health Criteria and other Supporting Information, vol.2, pp.231-233, 2004.

B. Winterhalder, R. Larsen, and R. B. Thomas, Dung as an essential resource in a highland Peruvian community, Human Ecol, vol.2, pp.89-104, 1974.

A. K. Yadhav, R. Abbassi, A. Gupta, and M. Dadashzadeh, Removal of fluoride from aqueous solution and groundwater by wheat straw, saw dust and activated baggasse carbon of sugar cane, Ecol. Eng, vol.52, pp.211-218, 2013.

X. Yu, S. Tong, M. Ge, and J. Zuo, Removal of fluoride from drinking water by cellulose@hydroxyapatite nanocomposites. Carbohydrate Polym, vol.92, pp.269-275, 2013.