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with the tribomechanically activated zeolite clinoptilolite in immunodeficiency: effects on the immune system. Adv. Ther., 21: 135-147. Khambualai O., Ruttanavut J., Kitabatake M., Goto H., Erikawa T., Yama -uchi K. (2009). Effects of dietary natural zeolite including plant extract on growth performance and intestinal histology in Aigamo ducks. Brit. Poultry Sci., 50: 123-130. Korver D.R., Klasing K.C. (1997). Dietary fish oil alters specific and inflammatory immune responses in chicks. J. Nutr., 127: 2039-2046. Kubena L.F., Harvey R.B., Huff W.E., Elissalde M

, J. D., 2015: Differential Diagnosis of Post-weaning Diarrhoea in Pigs . https://www.pig333.com/articles/differential-diagnosis-of-post-weaning-diarrhoea-in-pigs_10484/ . 7. Mastinu, A., Kumar, A., Maccarinelli, G., Bonini, S. A., Premoli, M., Aria, F., et al., 2019: Zeolite clinoptilolite: Therapeutic virtues of an ancient mineral. Molecules , 24, 8. DOI: 10.3390/molecules24081517. 8. Nabuurs, M. J. A., 1991: Etiologic and Pathogenic Studies on Postweaning Diarrhoea . PhD. Thesis, State University of Utrecht, Centraal Diergeneeskundig Instituut. Lelystad, the

Abstract

In the research described in this paper, studied was sorption capacity of natural and ferric modification of zeolite tuff containing mineral clinoptilolite from the Nižný Hrabovec deposit to remove potentially toxic metals (ionic forms of chromium, nickel, copper and aluminium) from their water solutions. We reported that the Fe (III) zeolite has an enhanced ability to sorption of Cu (II), and a slight improvement occurs in the case of Cr (VI) and Ni (II). On the other hand, the deterioration was observed in the case of Al (III) adsorption.

Abstract

In the present study, edingtonite has been extracted from natural zeolite clinoptilolite by simulating the natural hydrothermal conditions in the laboratory, under the influence of solutions with different concentrations of Ba+2 and Na+, varying from 0.5 to 2.8 mol/L, at 150 °C. In this work, the essential hydrothermal conditions have been provided by hydrothermal autoclaves. The natural and laboratory prepared samples were characterized by XRD, XRF and SEM methods.

For transport needs the hydrogen is mostly stored in a compressed (at 350-700 bars) form, while methods for its storage at lower pressures are rapidly developing. In particular, nanoporous oxides and zeolites, which do not normally absorb notable amount of hydrogen, with a small Pd additive or ion exchange demonstrate enhanced hydrogen adsorption properties. An original thermogravimetric method has been developed to study the hydrogen adsorption in zeolite, consisting of its heating in the inert gas (argon, nitrogen) flow and cooling in the hydrogen atmosphere. It is found that natural zeolite (clinoptilolite) with Mg-ion exchange possesses a high adsorption capacity for hydrogen - up to 6.2 wt%, which is explained by its encapsulation in zeolite pores. The FTIR spectra of the hydrogen-treated samples have shown new absorption bands at 2340 and 2360 cm-1.

Abstract

In this work, a method for introducing zeolites and mesoporous siliceous materials into the melt-blown process for the production of polypropylene nonwovens was developed and the functional materials obtained were tested. Both types of additives were introduced in the melt-blown technology using a device placed in the duct of the die assembly. Nine types of polypropylene melt-blown nonwovens were made with different types of zeolites (clinoptilolite, Na-X, Na-A, Na-P1, sodalite, Na-P1 with hexadecyl trimethylammonium bromide (HDTMA), ZeoEco 20, and BioZeo R.01) or mesoporous silica material (Mobil Composition of Matter No. 41, abbreviated as MCM-41). The nonwovens were studied in terms of protective and functional parameters: sodium chloride and paraffin oil mist aerosol penetration, airflow resistance, and sorption capacity for toluene, ammonia, acetone, and cyclohexane, in accordance with the requirements of the European standards concerning respiratory protective equipment. The tests showed that zeolites and MCM-41 can be successfully incorporated within the structure of elementary polymer fibers using an environmentally friendly “dry” melt-blown technology with nonwovens modified so as to impart multiple functionalities in one integrated technological process. The developed method of introducing the studied materials to polypropylene melt-blown nonwovens led to the production of new multipurpose materials with good protective and functional properties. The best polypropylene nonwovens were produced with the addition of 250 g/m2 of MCM-41 or Na-P1 zeolite modified with HDTMA.

. Reactions of VX, GD and HD with Nanosize MgO. J Phys Chem 1999;103:3225-8. Čolić M, Pavelić K. Molecular mechanisms of anticancer activity of natural dietetic products. J Mol Med 2000;78:333-6. Pavelić K, Hadžija M, Bedrica Lj, Pavelić J, Đikić I, Katić M, Kralj M, Herak Bosnar M, Kapitanović S, Poljak-Blaži M, Križanac Š, Stojković R, Jurin M, Subotić B, Čolić M. Natural zeolite clinoptilolite: new adjuvant in anticancer therapy. J Mol Med 2001;78:708-20.

. & Trgo, M. (2006). Column performance in lead removal from aqueous solutions by fixed bed of natural zeoliteclinoptilolite, Separation and Purification Technology , 49(3), 237–244. DOI: 10.1016/j.seppur.2005.10.005. 11. Michaels, A.S. (1952). Simplified method of interpreting kinetic data in fluid bed ion exchange. Industry & Engineering Chemistry , 44(8), 1922–1930. DOI: 10.1021/ ie50512a049. 12. Pawłowski, L., Klepacka, B. & Zaleski, R. (1981). A new ion exchange method for recovering highly concentrated solutions of chromates from plating effiuents, Nuclear

). Competitive adsorption of polycyclic aromatic hydrocarbons on organo-zeolites. Microporous and Mesoporous Materials, 105, 317-323. DOI: 10.1016/j.micromeso.2007.04.014. Li, Z., & Bowman, R. S. (1998). Sorption of Perchloroethylene by Surfactant-Modified Zeolite as Controlled by Surfactant Loading. Environmental Science and Technology, 32, 2278-2282. DOI: 10.1021/es971118r. Mansouri, N., Rikhtegar, N., Panahi, H. A., Atabi, F., & Shahraki B. K. (2013). Porosity, characterization and structural properties of natural zeolite - clinoptilolite - as a sorbent. Environment

integrated recirculating aquaculture-hydroponics systems in the Mekong Delta, Vietnam. Aquaculture research, 45, 460-469. Wen, J., Yi, Y., Zeng, G. (2016): Effects of modified zeolite on the removal and stabilization of heavy metals in contaminated lake sediment using BCR sequential extraction. Journal of environmental management, 178, 63-69. Zain, R. A. M. M., Shaari, N. F. I., Amin, M. F. M., Jani, M. (2018): Effects of different dose of Zeolite (Clinoptilolite) in improving water quality and growth performance of Red hybrid tilapia ( Oreochromis sp.). ARPN Journal of