Journal
WATER ENVIRONMENT RESEARCH
Volume 79, Issue 3, Pages 329-335Publisher
WATER ENVIRONMENT FEDERATION
DOI: 10.2175/106143006X111880
Keywords
clinoptilolite; heavy metal sorption; cation exchange; cation selectivity
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Natural clinoptilolite can be used as an ion exchanger for removal of heavy metals and treatment of environmental pollution because of its desirable characteristics of high ion exchange selectivity and resistance to different media. In this work, the potential of natural clinoptilolite from Gordes mines (West Anatolia, Turkey) for the uptake of lead(II), nickel(II), copper(H), and zinc(II), from their single and mixed ion solutions, was evaluated using the batch method. The mineralogical and chemical properties of the sorption material were carried out by X-ray diffraction, X-ray fluoremetry, scanning electron microscopy, and wet analysis. Contact time. initial solution pH, solid-to-liquid ratio, and initial metal cation concentration were determined as single ion sorption parameters. The silicon/aluminum ratio and the theoretical and equivalent exchange capacities. both in single and mixed solutions, were established. Corresponding adsorption constants and distribution coefficients have been found.
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