Groundwater protection from cadmium contamination by permeable reactive barrier in Qian'an of Jilin, China |
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基金项目: | Supported by Project of National Key Program of Technology R & D the 1 lth Five-year Plan (Nos. 2007 BAB28 B04493,2006BAB04A09492 ) ; China Geological Survey Program ( No. 2003104001 ) ; Jilin Province Key Project of Science and Technology ( Nos. 20020401, 20080543 ) ; Jilin Province Key Project of Water Resources (Nos. YN20060328, HDS20060629) ; NSFC Project (No. 40672157);Acknowledgements Special thanks go to FANG Zhang, FENG Bo, XIA Yubo, FAN Wei and LIU Peng, all of Jilin University for their collaboration and supports during this study. |
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摘 要: | This research studies the reliability of an activated carbon permeable reactive barrier in removing cadmium from a contaminated shallow aquifer. Laboratory tests have been performed to characterize the equilibrium and kinetic adsorption properties of the activated carbon in cadmium-containing aqueous solutions. A 2D numerical model has been used to describe pollutant transport within a groundwater and the pollutant adsorption on the permeable reactive barrier (PRB). In particular, it has been considered the case of a PAB used to protect a lake or downstream from Cd (II) contaminated groundwater. Numerical results show that the PAB can achieve a long-term efficiency by preventing lake or downstream pollution for several months.
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关 键 词: | 地下水保护 镉污染 吸附作用 数字模拟 |
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