Study on Adsorption of Heavy Metalion in Metallurgical Wastewater by Sepiolite

Xiu Yan Zhou; Xiang Xin Xue

doi:10.4028/www.scientific.net/AMR.726-731.2585

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Study on Adsorption of Heavy Metalion in...

Study on Adsorption of Heavy Metalion in Metallurgical Wastewater by Sepiolite

Abstract:

In this study, the sorption of heavy metals (Cu²⁺, Pb²⁺, Zn²⁺ and Cd²⁺) from simulated metallurgical wastewater by sepiolite under different dosage, pH, adsorption time and temperature conditions was investigated. The results showed that adsorption increased with the increase of adsorbent dosage until the adsorption equilibrium was reached. When the pH is 6, adsorption of heavy metal ions by sepiolite was in the order of Cu²⁺> Zn²⁺> Pb²⁺> Cd²⁺ and removal rates of the metal ion were 91%, 90%, 91%, 84%, respectively. The effect of adsorption time on adsorption was not significant. At room temperature, with the adsorption time 45 min, the adsorption of metal ions is almost saturated, adsorption of Cu²⁺, Pb²⁺, Cd²⁺ and Zn²⁺ was 13.05mg/g, 85.47mg/g, 62.36mg/g and 15.67mg/g, respectively.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

2585-2588

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.2585

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Online since:

August 2013

Authors:

Xiu Yan Zhou, Xiang Xin Xue

Keywords:

Geoaccumulation, Heavy Metal, Mining Activities, Pollution Soil

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