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Descripción
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| Zeolitic tuff constitutes a technical and economical feasible alternative to manage acidic waters in initial phases of generation. A study of cation exchange with two zeolitic tuffs from Ecuador and one from Cuba has been conducted using breakthrough curve methodology. Cations Mn2+, Cd2+, Cr3+, Zn2+, and Al3+ have been chosen owing to their presence in underground water in exploration activities (decline development) in Fruta del Norte (Ecuador). Zeolites characterized by X-ray diffraction and thermal stability after heating overnight as heulandites show a similar exchange behavior for the five cations studied. The clinoptilolite sample Tasajeras shows a relevant cation exchange performance expressed in the important increment of spatial time to reach the breakthrough point in comparison with heulandite samples. The maximum length of unused beds was found for Cr3+ and Zn2+ cations showing, therefore, a lower adsorption performance in relation with Mn2+ and Cd2+. A final disposal method of metal-loaded zeolites with cement is proposed. | |
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Internacional
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Si |
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JCR del ISI
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Si |
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Título de la revista
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH |
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ISSN
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0944-1344 |
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Factor de impacto JCR
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2,741 |
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Información de impacto
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Volumen
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DOI
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Número de revista
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Desde la página
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1 |
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Hasta la página
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13 |
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Mes
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SIN MES |
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Ranking
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Q2. 79/229 en 2016. |