Abstract
Effect of Incorporation of Hydrated Oxides of Sn (IV), Zr (IV) and Fe (III) in a Matrix of the Anion Exchanger Dowex SBR-P on the Sorption Capacity towards the Arsenic (V) Anions
Highlights
Expanding the scope of the ion-exchange sorption technology to effectively extract expensive or toxic ionic components from aqueous solutions is largely determined by the presence of functional ion-exchange materials with the desired set of properties
A weighed portion of 10 g of ion exchange resin Dowex SBR-P were placed in 50 mm3 of a 1 M aqueous solution of metal salts and heated with stirring during 1 hour, and the beads was filtered, washed with distilled water, placed into 30 mm3 of 25% NH4OH solution and stirred during 24 hours
It can be seen that the introduction of relatively small amounts of inorganic oxide components SnO2 and Fe2О3:SnO2 increases the magnitude of the sorption capacity at 50% in slightly acidic solutions and to a much lesser extent - 5-10% - in the alkali ones
Summary
Expanding the scope of the ion-exchange sorption technology to effectively extract expensive or toxic ionic components from aqueous solutions is largely determined by the presence of functional ion-exchange materials with the desired set of properties. One such property is the selectivity of the resin towards a target ion in salt solutions of complex composition. The purpose of this study was to estimate the effect of precipitation of hydrated oxides of tin (IV) and ferric (III) as inorganic sorption-active components in a matrix of a polymeric anion exchanger Dowex SBR-P on the physico-chemical and adsorptive properties towards ions of arsenic (V) It was shown that introduction of iron oxides in the ion exchange resin lead to creation a hybride material with a good selectivity towards anions of arsenic [3,4,5].
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Schedule a callMore From: International Journal of Water and Wastewater Treatment ( ISSN 2381-5299 )
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