Treatment of Copper-Containing Acid Mine Drainage by Neutralization-Adsorption Process Using Calcite as Neutralizer and Polyhydroxamic Acid Resin as Adsorbent

Shuai Wang; Gang Zhao; Zhong Nan Wang; Qian Zhang; Hong Zhong

doi:10.4028/www.scientific.net/AMM.161.200

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 161Treatment of Copper-Containing Acid Mine Drainage...

Treatment of Copper-Containing Acid Mine Drainage by Neutralization-Adsorption Process Using Calcite as Neutralizer and Polyhydroxamic Acid Resin as Adsorbent

Abstract:

Acid solution and copper-containing acid mine drainage (AMD) was treated by neutralization-adsorption process. The results showed that pH can be adjusted to 4.0 by adding 10g·L^-1 calcite in acid solution with pH=1.0. Adsorption and desorption performance of poly(hydroxamic acid) (PHA) resin for Cu²⁺ and Fe³⁺ ions were investigated by column tests. The results showed that adsorption capacities of PHA for Cu²⁺ and Fe³⁺ ions were satisfying, and the metals adsorbed on PHA can be eluted by sulfuric acid solution effectively. AMD of Dexing copper mine of Jiangxi was treated as a sample. The results showed that 1.5g·L^-1 calcite can remove almost all of the Fe³⁺ ion, and Cu²⁺ ion can be removed by PHA and then be eluted by sulfuric acid solution with adsorption ratio of 98.95% and elution ratio of 98.50%, separately.

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Periodical:

Applied Mechanics and Materials (Volume 161)

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200-204

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.161.200

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Online since:

March 2012

Authors:

Shuai Wang, Gang Zhao, Zhong Nan Wang, Qian Zhang, Hong Zhong

Keywords:

Acid Mine Drainage, Adsorption, Neutralization, Poly(hydroxamic acid) Resin

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