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Peyravi,,, S., Zahiri, R., Moradi Hersini, K. (2011). Removal of Zn2+ and Cr6+from waste water Samples, using natural Iranian (Aftar) Zeolites. Journal of Chemical Health Risks, 1(1), -. doi: 10.22034/jchr.2011.543967
S. Peyravi,,; R. Zahiri; K. Moradi Hersini. "Removal of Zn2+ and Cr6+from waste water Samples, using natural Iranian (Aftar) Zeolites". Journal of Chemical Health Risks, 1, 1, 2011, -. doi: 10.22034/jchr.2011.543967
Peyravi,,, S., Zahiri, R., Moradi Hersini, K. (2011). 'Removal of Zn2+ and Cr6+from waste water Samples, using natural Iranian (Aftar) Zeolites', Journal of Chemical Health Risks, 1(1), pp. -. doi: 10.22034/jchr.2011.543967
Peyravi,,, S., Zahiri, R., Moradi Hersini, K. Removal of Zn2+ and Cr6+from waste water Samples, using natural Iranian (Aftar) Zeolites. Journal of Chemical Health Risks, 2011; 1(1): -. doi: 10.22034/jchr.2011.543967

Removal of Zn2+ and Cr6+from waste water Samples, using natural Iranian (Aftar) Zeolites

Article 3, Volume 1, Issue 1, Summer 2011  XML PDF (601.84 K)
DOI: 10.22034/jchr.2011.543967
Authors
S. Peyravi,, email ; R. Zahiri; K. Moradi Hersini
School of Earth Sciences, Damghan University, Damghan, Iran
Receive Date: 28 September 2011,  Revise Date: 12 December 2019,  Accept Date: 29 October 2018 
Abstract
This paper concerns the removal of Zn2+ and Cr6+ 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 Zn2+ and Cr6+ 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 Zn2+ and Cr6+ 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.
Keywords
zeolite; Aftar; Zinc; chromium
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