Abstract
Eutrophication caused by the excessive supply of phosphate to water bodies has been considered as one of the most important environmental problems. In this study, the powder of zirconium mesostructure (ZM), which was prepared with the template of surfactant, was immobilized in calcium alginate for practical application and the resulting material was tested to evaluate the phosphate removal efficiency. Sorption isotherms and kinetic parameters were obtained by using the entrapped ZM beads with 30 to 60% of ZM. The maximum sorption capacity increased with the higher ZM content. Q max in Langmuir isotherm was 51.74 mg/g for 60% of ZM with 7 mm of size. The smaller the particle size of the ZM beads, the faster the rate of phosphate removal, because the phosphate ions had less distance to reach the internal pores of the immobilized ZM beads. Chemical and electrochemical regeneration techniques were compared. Phosphates adsorbed on the ZM beads were effectively desorbed with NaCl, NaOH, and Na2SO4 solutions. An electrochemical regeneration system consisting of an anion exchange membrane between two platinum-coated titanium electrodes was successfully used to desorb and regenerate the phosphate-saturated ZM beads. Complete regeneration was reached under optimal experimental conditions. Chemical and electrochemical regeneration proved the reusability of the bead form of the entrapped ZM, and will enhance the economical performance of the phosphate treatment process.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
M. I. Aguilar, J. Saez, M. Llorens, A. Soler and J. F. Ortuno, Water Res., 36, 2910 (2002).
D. Brdjanovic, A. Slamet, M. C. M. van Loosdrecht, C. M. Hooijmans, G. J. Alaerts and J. J. Heijnen, Water Res., 32, 200 (1998).
J. M. Ebeling, P. L. Sibrell, S. R. Ogden and S. T. Summerfelt, Aquacult Eng., 29, 23 (2003).
Y. Jaffer, T. A. Clark, P. Pearce and S. A. Parsons, Water Res., 36, 1834 (2002).
X. P. Zhu and A. Jyo, Water Res., 39, 2301 (2005).
M. T. L. Meganck and G. M. Faup, Eds., Enhanced biological phosphorus removal from watewaters, CRC Press, Roca Raton, FL (1988).
K. Urano and H. Tachikawa, Ind. Eng. Chem. Res., 30, 1893 (1991).
T. Hano, H. Takanashi, M. Hirata, K. Urano and S. Eto, Water Sci. Technol., 35, 39 (1997).
L. Zeng, X. M. Li and J. D. Liu, Water Res., 38, 1318 (2004).
O. Bastin, F. Janssens, J. Dufey and A. Peeters, Ecol. Eng., 12, 339 (1999).
R. A. Berner, Earth. Planet. Sc. Lett., 18, 77 (1973).
E. Kobayashi, K. Uematsu, Y. Nagawa and M. Sugai, Nippon Kagaku Kaishi, 1412 (1982).
M. J. Haron, S. A. Wasay and S. Tokunaga, Water Environ. Res., 69, 1047 (1997).
D. Y. Zhao and A. K. Sengupta, Water Sci. Technol., 33, 139 (1996).
H. Takada, Y. Watanabe and M. Iwamoto, Chem. Lett., 33, 62 (2004).
M. Iwamoto, H. Kitagawa and Y. Watanabe, Chem. Lett., 814 (2002).
S. H. Lee, B. C. Lee, K. W. Lee, Y. S. Choi, K. Y. Park and M. Iwamoto, in Wastewater reclamation & reuse for sustainability, IWA specialty conference, Jeju, South Korea (2005).
P. Wu and M. Iwamoto, Chem. Lett., 1213 (1998).
P. McMorn and G. J. Hutchings, Chem. Soc. Rev., 33, 108 (2004).
U. Ciesla, S. Schacht, G. D. Stucky, K. K. Unger and F. Schuth, Angew. Chem. Int. Edit., 35, 541 (1996).
J. S. Reddy and A. Sayari, Catal. Lett., 38, 219 (1996).
H. Ertesvag and S. Valla, Polym. Degrad. Stabil., 59, 85 (1998).
Y. S. Ho and G. McKay, Water Res., 34, 735 (2000).
M. Mulder, Basic principles of membrane technology, Kluwer Academic Publishers, Netherlands (1996).
W. S. Winston Ho and K. K. Sirkar, in Membrane handbook, V. Goel, M. A. Accomazzo, A. J. DiLeo, P. Meier, A. Pitt, M. Pluskal and R. Kaiser Eds., Van Nostrand Reinhold, New York (1992).
K. Kuzawa, Y. J. Jung, Y. Kiso, T. Yamada, M. Nagai and T. G. Lee, Chemosphere, 62, 45 (2006).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Yeon, KH., Park, H., Lee, SH. et al. Zirconium mesostructures immobilized in calcium alginate for phosphate removal. Korean J. Chem. Eng. 25, 1040–1046 (2008). https://doi.org/10.1007/s11814-008-0170-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-008-0170-7