Cellulosic Sorption Filter Materials with Surface Flocculation Activity—A Hopeful Anticipation of Water Purification
- 1 Institute of Chemistry and Technology of Macromolecular Materials, Department of Wood, Pulp and Paper, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
- 2 Institute of Chemistry and Technology of Macromolecular Materials, Department of Wood, Pulp and Paper, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
- 3 Institute of Chemistry and Technology of Macromolecular Materials, Department of Wood, Pulp and Paper, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
- 4 Institute of Chemistry and Technology of Macromolecular Materials, Department of Wood, Pulp and Paper, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
Abstract
A filter media was developed comprising ionic activated cellulosic material with enormous sorption activity to ions-active dissolved and colloidal substances in aqueous systems evoking so-called surface flocculation and a filling material having a filter effect. The dilemma of the art of low sorption efficiency and high flow rate of filtrated aqueous dispersions without sacrificing its separation efficiency of fines has been solved by use of activated cellulosic material having multi-fold (roughly tenfold to hundredfold) sorption capacity for ions-active dissolved and submicron particulate contaminants compared to untreated cellulosic material.
- M. Milichovsky, “Sorption Filter Materials as Challenge for Separation Technology,” Proceedings of the 15th International Congress of Chemical and Process Engineering CHISA, Fluid Flow and Multiphase Systems, 2002, pp. 130-131.
- M. Milichovsky and M. Vodenicarová, “Influence of the Activated Pulp on the Wet-Web Chemistry of Paper Machines,” Cellulose Chemistry and Technology, Vol. 33, No. 5-6, 1999, pp. 503-511.
- M. Milichovsky and B. Cesek, “Surface Flocculation as a New Tool for Controlling Adsorption Processe,” Adsorption Science & Technology, Vol. 20, No. 9, 2002, pp. 883-896. http://dx.doi.org/10.1260/02636170260555796
- C. L. P. Dias, G. E. S. Valadao, A. C. Araujo, A. E. C. Peres and S. C. Amarante, “The Effect of Reagents on Ultrafine Iron Ore Vacuum Filtration,” Filtration + Separation, 2003, pp. 36-39.
- F. S. Bourgeois and G. J. Lyman, “Morphological Analysis and Modeling of Fine Coal Filter Cake Microstructure,” Chemical Engineering Science, Vol. 52, No. 7, 1997, pp. 1151-1162. http://dx.doi.org/10.1016/S0009-2509(96)00475-7
- S. C. Amarante, A. C. Araujo, G. E. S. Valadao and A. E. C. Peres, “Cake Dewatering of Some Iron Ore Industrial Products,” Minerals and Metallurgical Processing, Vol. 19, 2002, pp. 161-164.
- C. C. Mwaba, “Surfactants-Enhanced Dewatering of Graphite and Hematite Suspensions,” Minerals Engineering, Vol. 4, No. 1, 1991, pp. 49-62. http://dx.doi.org/10.1016/0892-6875(91)90118-F
- G. B. Tanny, D. K. Strong, W. G. Presswood and T. H. Meltzer, “Adsorptive Retention of Pseudomonas Diminuta by Membrane Filters,” Journal of the Parenteral Drug Association, Vol. 33, No. 1, 1979, pp. 40-51.
- D. B. Pall, E. A. Kirnbauer and B. T. Allen, “Particulate Retention by Bacteria Retentive Membrane Filters,” Colloids and Surfaces, Vol. 1, No. 3, 1980, pp. 235-256. http://dx.doi.org/10.1016/0166-6622(80)80015-1
- A. Muresan, M. Vata, L. Tataru, R. Muresan and Cr. I. Simionescu, “Modification of the Tinctorial Capacity of Cellulosic Fibers through Cationization. I. Obtention of Cationized Cellulosic Fibers,” Cellulose Chemistry and Technology, Vol. 31, No. 1, 1997, pp. 17-23.
- A. Muresan, M. Vata, L. Tataru, R. Muresan and Cr. I. Simionescu, “Modification of the Tinctorial Capacity of Cellulosic Fibers through Cationization,” Cellulose Chemistry and Technology, Vol. 31, No. 2, 1997, pp. 185-191.
- M. Filipi and M. Milichovsky, “Adsorption Characteristic of Oxycellulose in a Competitive Environment with Other Substance,” Adsorption Science & Technology, Vol. 26, No. 7, 2008, pp. 545-561.