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Title: USING OF NATURAL ZEOLITES MODIFICATION TO HEAVY METALS REMOVAL FROM WASTEWATER
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USING OF NATURAL ZEOLITES MODIFICATION TO HEAVY METALS REMOVAL FROM WASTEWATER
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1314-2704
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English
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18
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5.2
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The paper presents the overview of using the modification natural zeolites for heavy metals removal from aquatic environment. Zeolites occurred naturally as microporous materials. They are hydrated aluminosilicates with special ion-exchange and sorption properties. These minerals with special three-dimensional porous structure possess advantages over other cation exchange materials such as prize, the strong selectivity for different cations at low temperatures followed with loosen of non-toxic replaceable cations to the environment. Zeolites are used in many sectors of industry (filters for emission gases, waste water treatment, separators, ion exchange for softening water, catalysts for petroleum processing, organic synthesis and others). Modification of these minerals can be made by the various methods. They can be modified thermally or chemically. This work presents the treatment of zeolites by acid or bases treatment, inorganic salts and organic surfactants, which are adsorbed on the surface and lead to increasing of heavy metals removal efficiency. The results of these studies have shown that by these methods the efficiency of adsorption, selectivity, and catalytic properties of zeolite can be improved.
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conference
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18th International Multidisciplinary Scientific GeoConference SGEM 2018
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18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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1027-1034
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02-08 July, 2018
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website
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cdrom
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1558
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heavy metals; wastewater; modified zeolites
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