Verification of the Pollutant Transport Model ‘Modis’ Using EPRI Plains Site Data from a Tall Stack

1987 ◽  
pp. 265-277
Author(s):  
G. Petersen ◽  
D. Eppel ◽  
H. Grassl
Keyword(s):  
Transport Model ◽  
Pollutant Transport

scholarly journals Coastal modelling with a GIS bathymetric module

2013 ◽  
Vol 4 (1) ◽  
pp. 51-73
Keyword(s):  
3D Model ◽  
Transport Model ◽  
Pollutant Transport ◽  
Coastal Areas ◽  
Coastal Modelling ◽  
Rectangular Grids ◽  
Gis Environment ◽  
Arcview Gis

A 3D hydrodynamic/pollutant transport model was used to simulate the currents and pollutant transport in coastal areas. The bathymetric and shoreline data was provided to the model via a GIS module that operates in the ArcView GIS environment. The module is efficient and capable of generating bathymetric rectangular grids and shorelines of different resolution for open and closed boundary scenarios that can automatically be read by the coastal model. This ability could improve the basic patterns and relationships of the model such as grid dependency. The functionality of the 3D model with the GIS module is illustrated in a number of coastal areas in Greece.

Risk assessment using stochastic modeling of pollutant transport in landfill clay liners

1999 ◽  
Vol 39 (10-11) ◽  
pp. 337-341 ◽  
Author(s):  
Irene M.-C. Lo ◽  
Wendy K.-W. Law ◽  
Helen M. Shen
Keyword(s):  
Risk Assessment ◽  
Monte Carlo Simulation ◽  
Stochastic Modeling ◽  
Transport Model ◽  
Pollutant Transport ◽  
Design Parameters ◽  
Contaminant Concentration ◽  
Clay Liners ◽  
Clay Liner ◽  
Advection Dispersion

Risk assessment of landfil systems using Monte Carlo simulation in the prediction of groundwater contamination underneath a landfill insulated by clay liner is presented. The advantage of applying stochastic modeling is that uncertainties associated with various design parameters can be taken into account in the prediction of pollutant transport through the clay liner. A model based on a pollutant transport model considering advection, dispersion and sorption is developed in this study. The design parameters with their corresponding distribution forms are fed into the simulation model. The probability of the contaminant concentration in the groundwater underneath the landfill exceeding a predetermined value is used for risk assessment.

A wind driven three-dimensional pollutant transport model

2005 ◽  
Vol 20 (10) ◽  
pp. 1323-1333 ◽  
Author(s):  
I.K. Tsanis ◽  
D. Hurdowar-Castro
Keyword(s):  
Transport Model ◽  
Three Dimensional ◽  
Pollutant Transport

scholarly journals Finite volume method solution of pollutant transport in catchment sheet flow

2013 ◽  
Vol 45 (2) ◽  
pp. 182-189
Author(s):  
Gokmen Tayfur ◽  
Zhiguo He ◽  
Qihua Ran
Keyword(s):  
Finite Volume Method ◽  
Finite Volume ◽  
Active Layer ◽  
Overland Flow ◽  
Transport Model ◽  
Pollutant Transport ◽  
Water Volume ◽  
Sheet Flow ◽  
Advection Diffusion Equation ◽  
Volume Method

A finite volume numerical method was employed in the solution of two-dimensional pollutant transport in catchment sheet flow. The full dynamic wave constituted the sheet flow while the advection–diffusion equation with sink/source terms was the pollutant transport model. It is assumed that the solute in the surface active layer is uniformly distributed and the exchange rate of the solute between the active layer and overland flow are proportional to the difference between the concentrations in soil and water volume. Decrease of the solute transfer rate in the active surface layer caused by the transfer of solutes from soil to the overlying runoff is assumed to follow an exponential law. The equations governing sheet flow and pollutant transport are discretized using the finite volume method in space and an implicit backward difference scheme in time. The model was subjected to several numerical tests involving varying microtopographic surface, roughness, and infiltration. The results revealed that spatially varying microtopography plays an important role unlike the roughness and infiltration with respect to the total pollutant rate from the outlet of a catchment.

Two Dimensional Hydrodynamic and Pollutant Transport Modeling of Jiangyin-Xuliujing Reach of Yangtze Estuary

2013 ◽  
Vol 663 ◽  
pp. 999-1004 ◽  
Author(s):  
Lin Lu Li ◽  
Wen Rui Huang ◽  
Shu Guang Liu ◽  
Xiao Li Liu ◽  
Xin Yu Hu ◽  
...  
Keyword(s):  
Transport Model ◽  
Sewage Treatment ◽  
Tidal Flow ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Pollutant Transport ◽  
Yangtze Estuary ◽  
Water Levels ◽  
The Yangtze Estuary ◽  
Pollutant Discharge

A 2-dimensional hydrodynamic model (RMA2 model) was applied to simulate currents and potential pollutant transport in Jiangyin-Xuliujing reach of Yangtze estuary. The result was compared and validated with a validated 3D model (Delft3D Model). The results indicate that the RMA2 model can achieve the requirements of reproducing and predicting the tidal flow and water levels. Based on RMA2 model simulations, a pollutant transport model (RMA4 model) was established to simulate the transport process of potential pollutant discharge from a sewage treatment plant for risk analysis. This linked hydrodynamic and pollutant transport model can provide the valuable scientific supports for future study of water quality in the Yangtze estuary.

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