Commenced in January 2007
Paper Count: 32468
Dependence of Equilibrium, Kinetics and Thermodynamics of Zn (II) Ions Sorption from Water on Particle Size of Natural Hydroxyapatite Extracted from Bone Ash
Abstract:Heavy metals have bad effects on environment and soils and it can uptake by natural HAP .natural Hap is an inexpensive material that uptake large amounts of various heavy metals like Zn (II) .Natural HAP (N-HAP), extracted from bovine cortical bone ash, is a good choice for substitution of commercial HAP. Several experiments were done to investigate the sorption capacity of Zn (II) to N-HAP in various particles sizes, temperatures, initial concentrations, pH and reaction times. In this study, the sorption of Zinc ions from a Zn solution onto HAP particles with sizes of 1537.6 nm and 47.6 nm at three initial pH values of 4.50, 6.00 and 7.50 was studied. The results showed that better performance was obtained through a 47.6 nm particle size and higher pH values. The experimental data were analyzed using Langmuir, Freundlich, and Arrhenius equations for equilibrium, kinetic and thermodynamic studies. The analysis showed a maximum adsorption capacity of NHAP as being 1.562 mmol/g at a pH of 7.5 and small particle size. Kinetically, the prepared N-HAP is a feasible sorbent that retains Zn (II) ions through a favorable and spontaneous sorption process.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1079260Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2058
 Rui Zhu, Min Wu_, Jian Yang, 2010.Mobilities and leachabilities of heavy metals in sludge with humus soil, Journal of Environmental Sciences. 23(2): 247-254.
 Ahmadpour A, Tahmasbi M, Rohani Bastami T, Amel Besharati J, 2009. Rapid removal of cobalt ion from aqueous solutions by almond green hull. Journal of Hazardous Materials 166 :925-930.
 Zheng W, Li X, Yang Q, Zeng G, Shen X, Zhang Y, Liu J, 2007. Adsorption of Cd (II) and Cu (II) from aqueous solution by carbonate hydroxyapatite derived from eggshell waste, Journal of Hazardous Materials 147 :534-539
 Pan X, Wang J, Zhang D, 2009. Sorption of cobalt to bone char: Kinetics, competitive sorption and mechanism, Desalination 249 : 609-614.
 Ma Q Y, Logan T J, Traina S J , Ryan J A , 1994. Effects of aqueous Al, Cd, Cu, Fe(II), Ni, and Zn on Pb immobilization by hydroxyapatite, Environ. Sci. Technol. 28 : 1219- 1228.
 Aklil A, Mouflih M, Sebti S, 2004. Removal of heavy metal ions from water by using calcined phosphate as a new adsorbent, J. Hazard. Mater. A 112 : 183-190.
 Takeuchi Y, Arai H, 1990. Removal of coexisting Pb2+, Cu2+ and Cd2+ ions from water by addition of hydroxyapatite powder, J. Chem. Eng. Jpn. 23 : 75-80.
 G'omez del R'─▒o J A , Morando P J , Cicerone D S , 2004. Natural materials for treatment of industrial effluents: comparative study of the retention of Cd, Zn and Co by calcite and hydroxyapatite. Part I: batch experiments, J. Environ. Manage. 71 :169- 177.
 Xu Y, Schwartz F W, Traina S J, 1994.Sorption of Zn2+ and Cd2+ on hydroxyapatite surfaces, Environ. Sci. Technol. 28 : 1472-1480.
 Chen Z S, Hseu Z Y, In situ immobilization of cadmium and lead by different amendments in two contaminated soils, Water Air Soil
 Leyva A G, Marrero J, Smichowski P,Cicerone D, 2001. Sorption of antimony onto hydroxyapatite, Environ. Sci. Technol. 35 : 3669- 3675.
 Vega E D , Pedregosa J C , Narda G E , Morando P J , 2003. Removal of oxovanadium( IV) from aqueous solutions by using commercial crystalline calcium hydroxyapatite, Water Res. 37 : 1776-1782.
 Yu B, Zhang Y, Shukla A, Shukla S S, Dorris K L, 2000. The removal of heavy metal from aqueous solutions by sawdust adsorptionremoval of copper, J. Hazard. Mater. B 80:33-42.
 Cao X, Ma L Q, Rhue D R , C.S. Appel C S, 2004. Mechanisms of lead, copper, and zinc retention by phosphate rock, Environ. Pollut. 131 : 435-444.
 Jeanjean J, Vincent U, Fedoroff M, 1994. Structural modification of calcium hydroxyapatite induced by sorption of cadmium ions, J. Solid State Chem. 108 : 68- 72.
 Bahrololoom M E, Javidi M, Javadpour S , Ma J, 2009. Characterisation of natural hydroxyapatite extracted from bovine cortical bone ash, j. Ceramic processing research. 10 : 129-138
 Sundaram C S, Viswanathan N, Meenakshib S, 2009. Defluoridation of water using magnesia/chitosan composite, Journal of Hazardous Materials 163: 618- 624.
 Sundaram C S, Viswanathan N, Meenakshib S, 2008. Defluoridation chemistry of synthetic hydroxyapatite at nano scale: Equilibrium and kinetic studies, Journal of Hazardous Materials 155 :206-215.
 Horsfall M, Spiff A I , 2005. Effects of temperature on the sorption of Pb2+ and Cd2+ from aqueous solution by caladium bicolour (Wild Cocoyam) biomass, Electron. J. Biotechnol. 8 : 162-169.