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Studies on Purification of Mine Drainage with NaOCl and $H_2O_2$  

Choi, Seung-Won (Department of Earth and Environmental Sciences, Andong National University)
Jang, Yun-Deug (Department of Geology, Kyungpook National University)
Kim, Young-Hun (Department of environmental engineering, Andong National University)
Kim, Jeong-Jin (Department of Earth and Environmental Sciences, Andong National University)
Publication Information
Economic and Environmental Geology / v.43, no.1, 2010 , pp. 21-31 More about this Journal
Abstract
Mine and leachate waters were collected from the Okdong mine for study on reaction with oxidizing agents such as NaOCl and $H_2O_2$. The pH and EC of the mine and leachate waters are 5.77, 831 uS/cm, and 6.38, 1920 uS/cm, respectively. The concentrations of Mg, Mn, and Zn are 23.25 mg/l, 14.90 mg/l, and 22.99 mg/l for the mine water and 98.75 mg/l, 3.38 mg/l, and 6.16 mg/l for the leachate water. The concentrations of Mg, Mn and Zn decreased after the reaction with the oxidizing agents and mine water. The concentrations of Mg, Mn and Zn rapidly decreased when oxidizing agents increased. The saturation indices that were computed by visual MINTEQ for initial mine and leachate water were undersaturated with Mg, Zn and Mn compounds. The precipitates after the reaction with the oxidizing agents are composed mainly of mangano-calcite[(Mn, Ca)$CO_3$] with small amount of calcite-magnesian and calcite.
Keywords
mine drainage; mine water; leachate; oxidizing agents; mangano-calcite;
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Times Cited By KSCI : 5  (Citation Analysis)
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