Korean Journal of Materials Research, Vol.27, No.3, 166-171, March, 2017
Sorption Behavior and Mechanism of Phosphate onto Natural Magnesite
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Removal of phosphate from environmental water has become more important to prevent eutrophication. In the present study, sorption behavior of phosphate onto magnesite was investigated under different conditions. The optimum pH of phosphate adsorption was determined to be 6.0. The adsorption capacity was found to decrease with increasing temperature, which indicates that a low temperature was beneficial for phosphate adsorption. The sorption capacity for phosphate was found to be 10.2 mg/g at an initial concentration of 100 mg/L and a dose of 2 g/L. The first order kinetic equation and Freundlich isotherm model fit the data well. Phosphate adsorption on magnesite was explained by electrostatic attraction and weak physical interactions.
- Li B, Brett MT, Water Res., 46, 837 (2012)
- Liu T, Wu K, Zeng LH, J. Hazard. Mater., 217, 29 (2012)
- Saha B, Chakraborty S, Das G, J. Colloid Interface Sci., 331(1), 21 (2009)
- Xiong JB, He ZL, Mahmood Q, Liu D, Yang X, Islam E, J. Hazard. Mater., 152(1), 211 (2008)
- Yan LG, Xu YY, Yu HQ, Xin XD, Wei Q, Du B, J. Hazard. Mater., 179(1-3), 244 (2010)
- Kipcak I, Ozdemir M, Chem. Eng. J., 189, 68 (2012)
- Wang M, Liao L, Zhang X, Li Z, Appl. Clay Sci., 67, 164 (2012)
- GENCE N, OZDAG H, Int. J. Miner. Process., 43(1), 37 (1995)
- Chitrakar R, Tezuka S, Sonoda A, Sakane K, Ooi K, Hirotsu T, J. Colloid Interface Sci., 298(2), 602 (2006)
- Gok A, Gok MK, Asci YS, Lalikoglu M, Fluid Phase Equilib., 372, 15 (2014)
- Foo KY, Hameed BH, Chem. Eng. J., 156(1), 2 (2010)
- Zhou CJ, Wu QL, Lei TZ, Negulescu JI, Chem. Eng. J., 251, 17 (2014)
- Karaca S, Gurses A, Ejder M, Acikyildiz M, J. Colloid Interface Sci., 277(2), 257 (2004)
- Yeom SH, Jung KY, J. Ind. Eng. Chem., 15(1), 40 (2009)
- Soejoko DS, Tjia MO, J. Mater. Sci., 38(9), 2087 (2003)