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Water 2017, 9(4), 235; doi:10.3390/w9040235

Use of Surfactant-Modified Zeolites and Clays for the Removal of Heavy Metals from Water

Tecnologico de Monterrey, School of Engineering and Sciences, Atizapan de Zaragoza, Estado de Mexico 52926, Mexico
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Academic Editor: Andreas N. Angelakis
Received: 17 January 2017 / Revised: 16 March 2017 / Accepted: 22 March 2017 / Published: 24 March 2017
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Abstract

The presence of heavy metals in water for human use or consumption represents a major risk to human health. It is therefore important to find materials to remove or minimise the concentration of these pollutants. The adsorption process for the removal of heavy metals is favoured by the use of low-cost materials that exhibit a porous structure and a high cation exchange capacity, such as zeolites and clays. On the other hand, chemical treatments, e.g., using acids and bases, can modify the properties of these materials, but more recently the application of surfactants has also shown to be successful for broadening their metal affinity and allowing the removal of diverse organic and inorganic pollutants from water. This paper reviews the application of modified zeolites and clays for the removal of heavy metals from water. View Full-Text
Keywords: heavy metals; water treatment; surfactant-modified surfaces; zeolite; clay heavy metals; water treatment; surfactant-modified surfaces; zeolite; clay
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Jiménez-Castañeda, M.E.; Medina, D.I. Use of Surfactant-Modified Zeolites and Clays for the Removal of Heavy Metals from Water. Water 2017, 9, 235.

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