Study on the Removal of Pb2+, Cu2+, and Cd2+ from Wastewater Using Modified Stilbite

Xi Chen; Tian Shun Cui; Shuang Zhao; Xiao Jun Deng

doi:10.4028/www.scientific.net/MSF.852.1342

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HomeMaterials Science ForumMaterials Science Forum Vol. 852Study on the Removal of Pb2+, Cu2+, and Cd2+ from...

Study on the Removal of Pb²⁺, Cu²⁺, and Cd²⁺ from Wastewater Using Modified Stilbite

Abstract:

In this study, we studied the ability of modified Stilbite to adsorb heavy metals Pb²⁺, Cu²⁺, and Cd²⁺ from wastewater. In static conditions, we investigated the impact of pH, temperature, dosage, and the competitive adsorption characteristics of the modified Stilbite in addressing pollution of wastewater with Pb²⁺, Cu²⁺, Cd²⁺. The testing showed that: under normal circumstances, with a pH between 5-6, a dosage of 0.7 g, and an adsorption time of 90 minutes, the adsorption rate of the three metals was above 90%. The adsorption rate of Cu was greater than Pb, which was greater than Cd. The modified Stilbite adsorption of the three metals met Langmuir and Freundlich isothermal adsorption equations. The study also revealed that regenerated Stilbite, after adsorption, can still continue to be used for adsorption of heavy metals.

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Periodical:

Materials Science Forum (Volume 852)

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1342-1348

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.852.1342

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April 2016

Authors:

Xi Chen, Tian Shun Cui, Shuang Zhao, Xiao Jun Deng

Keywords:

Adsorption, Heavy Metal, Modified Stilbite

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