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http://dx.doi.org/10.5322/JES.2009.18.2.239

Stabilization for Heavy Metal Contamination Soils which Uses the Coal Mine Drainage Sludge  

Cui, Mingcan (Determent of Civil Environmental and Architecture, Korea University)
Lim, Jung-Hyun (Determent of Civil Environmental and Architecture, Korea University)
Son, Young-Gyu (Determent of Civil Environmental and Architecture, Korea University)
Jang, Min (Mine Reclamation Corporation)
Shim, Yon-Sik (Mine Reclamation Corporation)
Khim, Jee-Hyeong (Determent of Civil Environmental and Architecture, Korea University)
Publication Information
Journal of Environmental Science International / v.18, no.2, 2009 , pp. 239-244 More about this Journal
Abstract
In this study, to stabilize the heavy metal in the contaminated soils, the column leaching test based on rainfall and pH value was performed by using coal mine drainage sludge(CMDS): which was generated during electrical purification of abandoned coal mine wastewater. Four types of testing column were used in this study. That were the CMDS and the heavy metal contaminated soils well mixed in 0 wt%, 1 wt%, 3 wt% and 3 wt% layered column. According to the investigation, when the influent pH was $5.5{\sim}6.2$, there were no heavy metal elution at all conditions, and when the influent pH was $3{\sim}3.3$, the order of Cu, Zn, Pb, Cr elution concentration was 3 wt% M(mixed)<3 wt% S(separation)<1 wt% M<0 wt% and the average elution concentration was quite low, the value was 0.005 mg/L. Therefore, CMDS can used as new stabilizer of the heavy metal in the contaminated soils.
Keywords
CMDS; Heavy metal; Mixed ratio; pH;
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