Use of natural clinoptilolite for the removal of lead, copper and zinc in fixed bed column

Marinos A. Stylianou; Michalis P. Hadjiconstantinou; Vasilis J. Inglezakis; Konstantinos G. Moustakas; Maria D. Loizidou

doi:10.1016/j.jhazmat.2006.09.096

Use of natural clinoptilolite for the removal of lead, copper and zinc in fixed bed column

Marinos A. Stylianou, Michalis P. Hadjiconstantinou, Vasilis J. Inglezakis, Konstantinos G. Moustakas, Maria D. Loizidou

Department of Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

69 Citations (Scopus)

Abstract

This work deals with the removal of lead, copper and zinc from aqueous solutions by using natural zeolite (clinoptilolite). Fixed bed experiments were performed, using three different volumetric flow rates of 5, 7 and 10 bed volume/h, under a total normality of 0.01N, at initial pH of 4 and ambient temperature (25 °C). The removal efficiency increased when decreasing the flow rate and the following selectivity series was found: Pb²⁺ > Zn²⁺ ≥ Cu²⁺. Conductivity measurements showed that lead removal follows mainly ion exchange mechanism, while copper and zinc removal follows ion exchange and sorption mechanism as well.

Original language	English
Pages (from-to)	575-581
Number of pages	7
Journal	Journal of Hazardous Materials
Volume	143
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jhazmat.2006.09.096
Publication status	Published - May 8 2007

Keywords

Clinoptilolite
Copper
Fixed bed
Ion exchange
Lead
Zinc

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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abstract = "This work deals with the removal of lead, copper and zinc from aqueous solutions by using natural zeolite (clinoptilolite). Fixed bed experiments were performed, using three different volumetric flow rates of 5, 7 and 10 bed volume/h, under a total normality of 0.01N, at initial pH of 4 and ambient temperature (25 °C). The removal efficiency increased when decreasing the flow rate and the following selectivity series was found: Pb2+ > Zn2+ ≥ Cu2+. Conductivity measurements showed that lead removal follows mainly ion exchange mechanism, while copper and zinc removal follows ion exchange and sorption mechanism as well.",

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AU - Hadjiconstantinou, Michalis P.

AU - Inglezakis, Vasilis J.

AU - Moustakas, Konstantinos G.

AU - Loizidou, Maria D.

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Use of natural clinoptilolite for the removal of lead, copper and zinc in fixed bed column

Abstract

Keywords

ASJC Scopus subject areas

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