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Analytical Modeling of Aquifer Pollution Caused by Solid Waste Depositories
Author(s) -
Rudakov Dmitry V.,
Rudakov Victor C.
Publication year - 1999
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1999.tb01111.x
Subject(s) - aquifer , pollutant , pollution , environmental science , groundwater , infiltration (hvac) , environmental engineering , water pollution , permeability (electromagnetism) , surface water , soil science , hydrology (agriculture) , geotechnical engineering , geology , environmental chemistry , materials science , chemistry , ecology , biochemistry , organic chemistry , membrane , composite material , biology
An analytical model to assess the risk of ground water pollution caused by leaks from surficial depositories containing water‐soluble toxic substances is presented. The proposed model includes two stages of pollutant migration: (1) predominantly vertical transport through a low‐permeability protective soil layer above the aquifer, and (2) two‐ or three‐dimensional transfer of the pollutant in ground water flow. Convection, longitudinal and transverse dispersion, sorption, and pollutant decay are taken into consideration both for the soil layer and the aquifer. Corresponding boundary problems are formulated and solved. The exact solutions allow us to estimate the possibility of toxic substance percolation into the aquifer and the expected intensity of this process, and to simulate pollution zone formation in ground water and possible material flow to a nearby surface water body. The calculations showed good numerical accuracy and the practical convenience of the model for monitoring and predicting ground water pollution near landfills and depositories of industrial solid waste.