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Detection of contaminant plumes released from landfills: numerical versus analytical solutions 总被引:4,自引:3,他引:1
N. Buket Yenigül André T. Hensbergen Amro M. M. Elfeki F. Michel Dekking 《Environmental Earth Sciences》2011,64(8):2127-2140
Contaminant leaks released from landfills are a threat to groundwater quality. The groundwater monitoring systems installed
in the vicinity of such facilities are vital. In this study the detection probability of a contaminant plume released from
a landfill has been investigated by means of both a simulation and an analytical model for both homogeneous and heterogeneous
aquifer conditions. Since the detection probability is a sensitive quantity, we first compare the two methods for homogeneous
aquifer conditions to assess the errors that are encountered by performing simulations. The analysis shows that the simulation
model yields the detection probabilities of a contaminant plume at a given monitoring well quite well in the homogeneous case.
For heterogeneous aquifers we apply the approximated analytical model based on macro-dispersivities. Here we find that this
model is insufficient in monitoring system design, since the obtained analytical values of the detection probabilities at
a given monitoring well differ significantly from those computed by simulation. 相似文献
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