Characteristics and defluoridation performance of granular activated carbons coated with manganese oxides

WHO (World Health Organization), 2006 Tsutsui, 1984, Cytotoxicity, chromosome aberrations and unscheduled DNA synthesis in cultured human diploid fibroblasts induced by sodium fluoride, Mutat. Res., 139, 193, 10.1016/0165-7992(84)90127-1 Wang, 2006, Brief instruction of the prevention of endemic fluorosis, Chin. J. Clin. Rehabil., 44, 222 Tripathy, 2006, Removal of fluoride from drinking water by adsorption onto alum-impregnated activated alumina, Sep. Purif. Technol., 50, 310, 10.1016/j.seppur.2005.11.036 Maliyekkal, 2006, Manganese-oxide-coated alumina: a promising sorbent for defluoridation of water, Water Res., 40, 3497, 10.1016/j.watres.2006.08.007 Li, 2002, Effects of activated carbon surface chemistry and pore structure on the adsorption of organic contaminants from aqueous solution, Carbon, 40, 2085, 10.1016/S0008-6223(02)00069-6 Mugisidi, 2007, Modification of activated carbon using sodium acetate and its regeneration using sodium hydroxide for the adsorption of copper from aqueous solution, Carbon, 45, 1081, 10.1016/j.carbon.2006.12.009 Zhou, 2004, Adsorption of fluoride from aqueous solution on La3+-impregnated cross-linked gelatin, Sep. Purif. Technol., 36, 89, 10.1016/S1383-5866(03)00167-9 Ramos, 1999, Adsorption of fluoride from aqueous solution on aluminum-impregnated carbon, Carbon, 37, 609, 10.1016/S0008-6223(98)00231-0 Babić, 1999, Point of zero charge and intrinsic equilibrium constants of activated carbon cloth, Carbon, 37, 477, 10.1016/S0008-6223(98)00216-4 Park, 1997, Surface and bulk measurements of metals deposited on activated carbon, Chem. Mater., 9, 176, 10.1021/cm9602712 Chen, 2004, Acid/base-treated activated carbons: characterization of functional groups and metal adsorptive properties, Langmuir, 20, 2233, 10.1021/la0348463 Kennedy, 2007, Equilibrium, kinetic and thermodynamic studies on the adsorption of m-cresol onto micro- and mesoporous carbon, J. Hazard. Mater., 149, 134, 10.1016/j.jhazmat.2007.03.061 Pakuła, 2007, Electrochemical and FTIR studies of the mutual influence of lead(II) or iron(III) and phenol on their adsorption from aqueous acid solution by modified activated carbons, Chemosphere, 69, 209, 10.1016/j.chemosphere.2007.04.028 Deng, 2005, Polyethylenimine-modified fungal biomass as a high-capacity biosorbent for Cr (VI) anions: sorption capacity and uptake mechanisms, Environ. Sci. Technol., 39, 8490, 10.1021/es050697u Samantaray, 2005, Modified TiO2–SiO2 mixed oxides. 1. Effect of manganese concentration and activation temperature towards catalytic combustion of volatile organic compounds, Appl. Catal. B: Environ., 57, 83, 10.1016/j.apcatb.2004.10.008 Aronson, 2000, Synthesis, characterization, and ion-exchange properties of zinc and magnesium manganese oxides confined within MCM-41 channels, J. Phys. Chem. B, 104, 449, 10.1021/jp9920343 Ardizzone, 1997, Surface reactivity of α-Mn2O3 powders in aqueous suspensions, J. Electroanal. Chem., 425, 19, 10.1016/S0022-0728(96)04958-3 Ahimou, 2007, XPS analysis of chemical functions at the surface of Bacillus subtilis, J. Colloid Interface Sci., 309, 49, 10.1016/j.jcis.2007.01.055 Ho, 1999, Pseudo-second order model for sorption processes, Process Biochem., 34, 451, 10.1016/S0032-9592(98)00112-5 Fan, 2003, Adsorption kinetics of fluoride on low cost materials, Water Res., 37, 4929, 10.1016/j.watres.2003.08.014 Önal, 2007, Elucidation of the naproxen sodium adsorption onto activated carbon prepared from waste apricot: kinetic, equilibrium and thermodynamic characterization, J. Hazard. Mater., 148, 727, 10.1016/j.jhazmat.2007.03.037 Ghorai, 2005, Equilibrium, kinetics and breakthrough studies for adsorption of fluoride on activated alumina, Sep. Purif. Technol., 42, 265, 10.1016/j.seppur.2004.09.001 Redlich, 1959, A useful adsorption isotherm, J. Phys. Chem., 63, 1024, 10.1021/j150576a611 Eskandarpour, 2008, Removal of fluoride ions from aqueous solution at low ph using schwertmannite, J. Hazard. Mater., 152, 571, 10.1016/j.jhazmat.2007.07.020 Dey, 2004, Hydrous ferric oxide (HFO)—a scavenger for fluoride from contaminated water, Water Air Soil Pollut., 158, 311, 10.1023/B:WATE.0000044854.71497.b6