Adsorption Kinetics of Phosphate on Ceria-Based Adsorbent

Article Preview

Abstract:

The adsorption kinetics and influencing factors deduction showed that adsorption process accorded with a second-order kinetic equation according to academic hypothesis. The result was validated by the phosphate adsorption onto Veria-Based adsorbent. The factor (m/V) b had the close relation with the adsorption speed and the adsorbent dosage, intensity exponent b=0.44 (0b1) in this test condition. All the results show that phosphate adsorption on the adsorbent surface was mono-layer chemisorptions and that the hypothesis of kinetic inference was reasonable.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

1668-1672

Citation:

Online since:

August 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] A. M. Raichur, M. J., Basu, 2001. Adsorption of fluoride onto mixed rare earth oxides. Sepa. Puri. Tech. 24, 121-127.

DOI: 10.1016/s1383-5866(00)00219-7

Google Scholar

[2] Cengeloglu, Y., Mercimek, B., H., Ersoz, M., 1998. Sorption of target anion by ligand exchange. J. Appl. Polym. Sci. 69, 771-774.

Google Scholar

[3] Chen Y. B., Ning P., Chen Y. H., 2006. Phosphate removal from slightly polluted water through rare earth(in Chinese). J. Rare Earths. 24, 328-331.

Google Scholar

[4] Ding W. M., Huang X., Zhang L. P., 2003. Lanthanum oxide hydrate phosphate adsorption studies. Environmental Science, 9 (5), 63-68.

Google Scholar

[5] Jiang Z., Ning P., Pu H. P., 2004. The zeolite Removal of the low concentration of ammonia(in Chinese). Journal of safety and the environment, 4 (2), 40~42.

Google Scholar

[6] J. Das, B. S. Patra, N. Baliarsingh, K. M. Parida, 2006. Adsorption of phosphate by layered double hydroxides in aqueous solutions. Applied Clay Science, 32, 252–260.

DOI: 10.1016/j.clay.2006.02.005

Google Scholar

[7] M. A. Anderson, Liu L. H., 1989. Aqueous solution chemical adsorption. Beijing: Science Press, 1989, 33-90.

Google Scholar

[8] Mahmut Özacar, 2006. Contact time optimization of two-stage batch absorber design using second-order kinetic model for the adsorption of phosphate onto alunite. J. Hazardous Materials, B137, 218–225.

DOI: 10.1016/j.jhazmat.2006.01.058

Google Scholar

[9] S.Tokunaga, S. A. Wasay, S. W. Park, 1997. Removal of Arsenic (V) ion from aqueous solutions by lanthanum compounds. Wat . Sci . Tech., 35, 71-78.

DOI: 10.2166/wst.1997.0262

Google Scholar

[10] Urano, K., Tachikawa, H.. 1991. Process development for removal and recovery of phosphate from wasterwater by a new adsorbent. 1. Preparation method and sorption capacity of a new adsorbent. Ind. Eng. Chem. Res. 30, 1893-1896.

DOI: 10.1021/ie00056a032

Google Scholar

[11] Wei F. S., 1991. Water and Wastewater Monitoring and Analysis methods (in Chinese). Beijing: China Environmental Science Press.

Google Scholar