The Adsorption Studies of Methylene Blue onto Montmorillonite
Montmorillonite was tested as an adsorbent for methylene blue (MB) removal from aqueous solution. The effect of various experimental parameters was investigated using a batch of adsorption techniques. In this manner, pH, amount of adsorbent, MB initial concentration, temperature which may affect MB adsorption on Montmorillonite were thoroughly examined. The absorption isotherm, adsorption kinetics were also researched. Results showed that a pH value of 5.0 was favorable for the adsorption of MB. Amount of MB adsorbed at equilibrium time (qe) decreased as the amount of adsorbent increased. The qe of the adsorbents increased gradually with the increment of MB initial concentration, but decreased gradually with adsorption temperature increasing. The isothermal data could be well described by Langmuir equation. The dynamical data fitted well with the pseudo-second-order kinetic model. The results laid the theoretical foundation for application of Montmorillonite which could be used as adsorbent in wastewater treatment.
文章引用: 田素燕 , 王小华 , 高金泉 , 吴德文 (2013) 蒙脱土对亚甲基蓝模拟染料废水吸附过程研究。 化学工程与技术， 3， 178-183. doi: 10.12677/HJCET.2013.35032
 M. H. Liu. Advances in dyeing and printing wastewater treatment technologies. Journal of Textile Research, 2007, 28(1): 116-117.
 Q. Lan, X. Y. Li, L. Huang, et al. Cements as recycling coagu- lants for the treatment of simulated dye wastewater. Environ- mental Engineering, 2012, 30: 109-112.
 G. Crini. Kinetic and equilibrium studies on the removal of cationic dyes from aqueous solution by adsorption onto a cyclodextrin polymer. Dyes and Pig-ments, 2008, 77(2): 415-426.
 F. Yang, X. J. Song and W. M. Wei. The application of new materials on adsorption of dye waste-water. Science & Technol- ogy Information, 2009, 19: 13-14.
 J. Ma, Y. Z. Jia, Y. Jing, et al. Kinetics and thermodynamics of methylene blue adsorption by cobalt-montmorillonite composite. Dyes and Pigments, 2012, 93: 1441-1446.
 C. Y. Shen. Study on the wastewater treat-ment of the active dyes by coagulation. Anhui Chemical Industry, 2005, 49(3): 49-50.
 J. Ma, Y. Z. Jia, Y. Jing, et al. Synthesis and photo-catalytic activity of TiO2-Montmorillonite layer-by-layer thin films. Applied Clay Science, 2010, 47: 433-437.
 Z. T. Fu, L. Z. Zhen and X. M. Hu. Treatment of reactive blue X-BR dyeing wastewater by electro-coagulation and its mecha- nism. Environmental Engineering, 2011, 29(3): 44-48.
 Y. Li, D. L. Xi. Analyses of dye and related compounds during biodegradation. Chinese Journal of Environmental Engineering, 2007, 1(8): 57-61.
 B. Y. Huang. Research on treat-ing dye wastewater by TiO2 photocatalytic oxidation. Guangdong Chemical Industry, 2012, 39(17): 101-103.
 C. Y. Guo, P. C. Zhao, Y. J. Wang, et al. Research on characteris- tics of the dyeing wastewa-ter by FA-SBR process. Environ- mental Science and Management, 2011, 36(1): 81-85.
 Q. Zhong. Study on treating dyeing waste-water with natural manganese ore in acid condition. Mining and Met-allurgical Engineering, 2012, 32(6): 99-102.
 J. J. Jiang, S. W. Ding, D. L. Yin, et al. The studies on photocatalytic degradation of simulated dye wastewater by nanosized TiO2/diatomite composites. Science Technology and Engineer- ing, 2012, 12(33): 9129-9131
 G. Wang, Q. Chang. On the removal efficiency of mercury ions from aqueous solution by means of novel macromolecule flocculants. Journal of Safety and Environment, 2012, 12(3): 58-61.
 S. S. Ray, M. Okamoto. Polymer/layered silicate nano-composites: A review from preparation to processing. Progress in Polymer Science, 2003, 28: 1539-1641.
 S. Y. Tian. Progress for treatment of wastewater containing heavy metals. Journal of Salt Lake Research, 2012, 20(4): 67-72.