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http://dx.doi.org/10.7843/kgs.2010.26.10.61

Simultaneous Removal of Cd and Cr(VI) in the Subsurface Using Permeable Reactive Barrier Filled with Fe-loaded Zeolite: Soil Box Experiment  

Rhee, Sung-Su (Seoul National Univ, Engrg, Research Institute)
Lee, Seung-Hak (Senior Researcher, Water Environment Center, Environment Division, Korea Institute of Science and Technology)
Park, Jun-Boum (Dept. of Civil & Environ. Eng., Seoul National Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.26, no.10, 2010 , pp. 61-68 More about this Journal
Abstract
A pilot-scale model test was performed to estimate the availability of new material, Fe-loaded zeolite, as the filling material in permeable reactive barrier (PRB) against the contaminated groundwater with both Cd and Cr(VI). Aquifer was simulated by filling up a large scale soil tank with sands, and mobilizing the water flow by the head difference of water level in both ends of the tank. Then, the mixture of concentrated Cd and Cr(VI) solution was injected into the aquifer to form a contaminant plume, and its behavior through Fe-loaded zeolite barrier was monitored. The test results showed that Fe-loaded zeolite barrier successfully treated the contaminant plume containing both Cd and Cr(VI) and that the immobilized contaminants in the barrier were not desorbed or released. The results indicated that the Fe-loaded zeolite could be a promising material in PRBs against the multiple contaminants with different ionic forms like Cr(VI) and Cd.
Keywords
Fe-loaded zeolite; Heavy metal; Permeable reactive barrier; Simultaneous removal; Soil box experiment;
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Times Cited By KSCI : 1  (Citation Analysis)
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