Removal of Zn2+ and Cr6+from waste water Samples, using natural Iranian (Aftar) Zeolites
<p>This paper concerns the removal of Zn<sup>2+</sup> and Cr<sup>6+</sup> ions from waste water using a naturally occurring zeolite from semnan region in Iran. A continuous fixed-column study was carried out by using zeolite as a low-cost adsorbent for the removal of Zn...
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| Format: | Article |
| Language: | English |
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Islamic Azad University
2011-09-01
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| Series: | Journal of Chemical Health Risks |
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| Online Access: | http://jchr.org/index.php/JCHR/article/view/7 |
| Summary: | <p>This paper concerns the removal of Zn<sup>2+</sup> and Cr<sup>6+</sup> ions from waste water using a naturally occurring zeolite from semnan region in Iran. A continuous fixed-column study was carried out by using zeolite as a low-cost adsorbent for the removal of Zn<sup>2+</sup> and Cr<sup>6+</sup> ions from aqueous solution under the effect of various process parameters such as, grain size and time. The efficiency of removal is higher for Zn than Cr ions. The Zn<sup>2+</sup> and Cr<sup>6+</sup> ions uptake by zeolite increased with initial ions concentration and column height, but decreased as the flow rate increased. The adsorption capacity reached a maximum at grain size of 0.71mm.<strong></strong></p> |
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| ISSN: | 2251-6719 2251-6727 |