. Res. 40, 303—310. Foo KY, Hamed BH (2010) Insight into modeling of adsorption isotherm systems. Chemical Engineering Journal 156: 2—10. Fujita H, Izumi Y, Sagehashi M, Fuji T, Sakoda A (2004) Adsorption and decomposition of water-dissolved ozone on high silica zeolites. Water Research 38: 159—165. Ho YS, McKay G (1999) Pseudo-second order model for sorption processes. Process Biochemistry 34(5): 451—465. Horáková M et al. (2003) Analytika vody. Vysoká škola chemicko-technologická v Praze. Ishii H, Matsuzawa H, Kobayashi M, Kato M (1978
Barbora Urminská, Ján Derco, Ronald Zakhar and Adriana Korpicsová
Michal Melicher, Ján Derco, Lenka Sumegová and Miloslav Drtil
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przydatności, Gospodarka surowcami mineralnymi , 23, 3 (2007) (in Polish). Y. Traa, B. Burger, J. Weitcamp, Micropor. Macropor. Mater. , 30, 3 (2000). P. A. Jacobs, Zeolite chemistry and catalysis , Amsterdam - Oxford - New York, Elsevier, (1991). M. Iwamoto, Studies in surface science and catalysis: Future opportunities in catalytic and separation technology , eds. M. Misono, Y. Morooka, S. Kimura, Elsevier, Amsterdam 121 (1990). R. Moreno-Tost, J. Santamaria
J. Burlakovs, M. Klavins and A. Karklina
., Reuter, H.I. (2008). Heavy metals in European soils: a geostatistical analysis of the FOREGS Geochemical database. Geoderma, 148, 189-199. 4. Breck, D. W. (1974). Zeolite Molecular Sieves: Structure, Chemistry and Use. New York: John Wiley & Sons. 5. Reddy, K.R., Adams, J.F., Richardson, C. (1999). Potential technologies for remediation of Brownfield. Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management , 3 (2), 61-68. 6. Dercova, K., Sejakova, Z., Skokanova, M., Barancikova, G., Makovnikova, J
Mária Valičková, Ján Derco and Katarína Šimovičová
The paper is focused on the removal of selected priority hazardous substances. Five chlorinated pesticides, i.e. hexachlorobenzene (HCHB), hexachlorobutadiene (HCHBD), lindane (LIN), pentachlorobenzene (PCHB) and heptachlor (HCH) were selected as model pollutants. Higher volatility is characteristic for these substances. Adsorption of these pollutants on granular activated carbon (GAC), zeolite (Zeo) and activated sludge (AS) was investigated. The effect of contact time on the removal efficiency of studied substances was investigated. From results of the work it follows that the highest removal efficiency of studied substances was achieved by the adsorption on activated sludge. This was followed by adsorption efficiency on zeolite. The lowest removal efficiency was measured for adsorption on granular activated carbon.
Selvakumar Dineshkumar, Ganesamoorthi Thirunarayanan, Perumal Mayavel and Inbasekaran Muthuvel
Zeolite Y clay modified copper nitrate catalyst was prepared. The obtained catalyst was analyzed by SEM, EDS, and powder XRD techniques. The zeolite Y clay modified copper nitrate catalyst was used for the synthesis of various substituted mesalazine by sulfonylation. The synthesized sulfonamides have been characterized by GC-MS, IR, 1H, 13C and HSQC NMR techniques. The yield percentages of sulfonamides are more than 85%.
A. Puziy, O. Poddubnaya, B. Gawdzik, M. Sobiesiak, C. Reinish, M. Tsyba, T. Segeda and M. Danylenko
). A. M. Puziy, O. I. Poddubnaya, J. A. Ritter, A. D. Ebner, C. E. Holland, Carbon 39, 2313 (2001). P. I. Ravikovich, A. V. Neimark, Langmuir 22, 11171 (2006). F. Delprato, L. Delmotte, J. L. Guth and L. Huve, Zeolites 10, 546 (1990). M. Sobiesiak, B. Gawdzik, A. M. Puziy, O. I. Poddubnaya, Chromatographia 64, 175 (2006).
Raluca Proscanu, Vasile Matei, Rodica Ganea, George Proscanu and Chol Ryong Jang
45-54 (2007) .Y. Wei, Z. Liu, G. Wang, Y. Qi, L. Xu, P. Xie and Y. He, Stud. Surf. Sci. Catal. 158 1223-1230 (2005). .F.C.Jentof and B.C.Gales, Top.Catal. 4 , 1-13 (1997) . J. Cejka, H. van Bekkum, A. Corma, F. Schüth (Eds), Introduction to Zeolite Science and Practice , 3rd Revised Edition, 168 1-105 (2007) . M.Cruceanu, Zeolitic molecular sieves ( in Romanian), ed. Stiintifica si Enciclopedica, Bucuresti 1986, pp.257-264 .C.J.Y. Houssin, Nanoparticles in
Lenka Sumegová, Ján Derco and Michal Melicher
This paper is focused on the influence of granulated activated carbon (GAC) and zeolite as catalysts as well as influences of temperature and pH on the ozonation process. From obtained results it can be concluded that the addition of granulated activated carbon and zeolite to model wastewater has a positive effect on the efficiency and degradation rate of methylene blue oxidation with ozone. The highest oxidation efficiency was observed in the alkaline pH range for which radical reaction mechanism of ozone is characteristic. From the results obtained during the study of the effect of temperature on the ozonation process it follows that both the efficiency and the rate of oxidation of methylene blue grow with increasing temperature.
Z. Hubicki, M. Majdan, M. Gęca, A. Gładysz-Płaska, D. Kołodyńska, M. Makarska-Białokoz, M. Wawrzkiewicz, A. Wołowicz and G. Wójcik
Selected aspect in the separation of inorganic and organic species on ion exchangers and sorbents of various types
In the paper the example papers from the Department of Inorganic Chemistry are presented. They are connected with the research of sorption and separation of inorganic and organic species on ion exchangers and sorbents of various types are presented. The main subjects include physicochemical studies of metal ions removal on anion exchangers, chelating and modified ion exchangers as well as zeolites, sorption and separation of rare earth elements, recovery of noble metal particularly from chloride solutions by ion exchange or extraction method, application of the anion exchangers of various types in dyes removal from aqueous solutions and wastewaters and chemistry of porphyrins in the aspect of environmental protection.