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http://dx.doi.org/10.14481/jkges.2016.17.8.29

Analysis on Contaminant Transport according to the Embedded Depth of Vertical Barrier of Offshore Landfill  

Park, Haeyong (Coastal Disaster Prevention Research Center, KIOST)
Oh, Myounghak (Coastal Disaster Prevention Research Center, KIOST)
Kwon, Osoon (Coastal Disaster Prevention Research Center, KIOST)
Publication Information
Journal of the Korean GEO-environmental Society / v.17, no.8, 2016 , pp. 29-37 More about this Journal
Abstract
In order to prevent leakage of contaminants in offshore landfill, vertical barrier should be installed. Vertical barrier should be installed at designed depth of seabed to prevent the horizontal transport of contaminant in the subsurface. In this study, the seepage and contaminant transport in the subsurface according to embedded depth of vertical barrier were analyzed by using 2-D finite element analysis program SEEP/W and 3-D finite difference analysis program Visual Modflow. Numerical modelling results show that seepage flux and contaminant transport in seabed was greatly reduced when vertical barrier was installed at certain depth of low permeable layer. Therefore, the determination of minimum embedded depth for preventing contaminant leakage is helpful to design the economical vertical barrier.
Keywords
Offshore landfill; Vertical barrier; Leachate; Seepage behavior; Contaminant transport;
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