일광광산 산성광산배수 처리를 위한 Zeolite-Slag 세라믹에 대한 기초연구 = Study on Zeolite-Slag Ceramics for Treatment of Acid Mine Drainage from Il-kwang Mine

다국어 초록 (Multilingual Abstract)

This study investigated the characteristics of Zeolite-Slag ceramics (ZS ceramics) for the treatment of acid mine drainage from Il-kwang Mine(Il-kwang Mine drainage). The concentration of heavy metals in Il-kwang Mine drainage have been observed as elevated in spring and summer seasons with high precipitation. The batch test showed that a mixing ratio of zeolite to slag, a calcination temperature, a mixing concentration of wood flour could influence the removal of Il-kwang Mine drainage. Optimal conditions for the drainage treatment were found to be 1:1∼1:3 mixing ratio of zeolite to slag, 800℃ of calcination temperature, and a 10% of mixing ratio of wood flour. In kinetic test, the heavy metals Al, As, Cd, Cu, Fe, Pb and Zn(except for Mn) were eliminated rapidly, most within five hours of reaction time. Moreover, the removal efficiency of heavy metals by ZS ceramics increased as the dose of ZS ceramics increased. When prepared in the optimal condition, the ZS ceramics showed very high removal efficiencies for heavy metals such as Al 99.9%, As 96.0%, Cd 99.9%, Cu 99.8%, Fe 99.7%, Pb 96.9% and Zn 98.2%. The Mn results were slightly less at 81.4%.

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