TY - JOUR
ID - 80600
TI - Study of Pollutant Dispersion in Finite Layers of Semi-infinite Geological Formation
JO - Pollution
JA - POLL
LA - en
SN - 2383-451X
AU - Singh, Mritunjay Kumar
AU - Rajput, Sohini
AD - Department of Mathematics and Computing, Indian Institute of Technology (Indian School of Mines), Dhanbad-826004, Jharkhand, India
Y1 - 2021
PY - 2021
VL - 7
IS - 2
SP - 257
EP - 274
KW - Advection
KW - dispersion
KW - Pollutant transport
KW - Multilayer aquifer
KW - Porous media
DO - 10.22059/poll.2020.307324.861
N2 - The present study deals with groundwater pollution in multilayer aquifer. The model is based on decomposition of finite layers in semi-infinite groundwater reservoir. A constant pollutant source is injected at the input boundary of the uppermost layer (UML) of the landfill. At the intermediate inlet boundary, some average value for the longitudinal exchange of the input source concentration in each sub-layer is considered from the previous layer. Initially, the aquifer is not solute free in each sub layer that means some constant background contaminant concentration exists. In each sub layer, concentration gradient is assumed to be zero at the extreme boundary. The linear sorption and first orders decay terms are considered to model the groundwater pollution in multilayer aquifer. The Laplace transform technique is adopted to solve one-dimensional (1D) advection-dispersion equation (ADE). This approach is helpful to understand the solute migration in finite sub layers. The results are elucidated for the different time periods to examine the peak of pollutant concentration level in geological formations.
UR - https://jpoll.ut.ac.ir/article_80600.html
L1 - https://jpoll.ut.ac.ir/article_80600_c75737ddbf3b15bda52c7ce17a9a6393.pdf
ER -