Download or read book A Numerical Simulation of Groundwater Flow and Contaminant Migration at the Labounty Landfill Charles City Iowa written by Richard E. Muza and published by . This book was released on 1986 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Numerical Groundwater Flow written by William C. Walton and published by CRC-Press. This book was released on 1989-01-01 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This valuable new book, with 2 programs on diskettes, will help practitioners in solving groundwater flow and contamination problems by integrating simulation techniques. The reader is expected to have knowledge of hydrogeology, and have access to books on groundwater hydrogeology. Two microcomputer programs, in compiled FORTRAN 77 with source codes for simulating quasi-three-dimensional groundwater flow and contaminant migration, are presented in this book. The numerical and analytical techniques incorporated in these programs are described in detail. Data entry has been simplified so that the user can run the programs without worrying about FORTRAN input file structures and editors. The basic requirements are a monitor, dot-matrix printer, and an IBM-PC or compatible computer running DOS Version 2.1 or compatible. Programs require a full 640K RAM (minus that used by DOS) for their operation.

Download or read book Simulation of Ground water Flow and Potential Contaminant Transport at Area 6 Landfill Naval Air Station Whidbey Island Island County Washington written by F. W. Simonds and published by . This book was released on 2002 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conjunctive Use of Ground Water Flow and Mass Transport Models in Simulation of Contaminant Migration Butler County Landfill Ohio written by Paul F. Hudak and published by . This book was released on 1988 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Numerical Simulation of Groundwater Flow and Contaminant Transport on the CRAY T3D and C90 Supercomputers written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Groundwater Contaminant Transport written by F.B.J. Barends and published by Routledge. This book was released on 2017-07-12 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impacts of developed tools of heterogenous characterization on the hydrodynamics of flow and the transport mechanisms are illustrated in this text through a series of extensive numerical simulations consisting of single and multiple-realizations (Monte Carlo method).

Download or read book Use of Particle Tracking to Improve Numerical Model Calibration and to Analyze Ground water Flow and Contaminant Migration Massachusetts Military Reservation Western Cape Cod Massachusetts written by John P. Masterson and published by U.S. Government Printing Office. This book was released on 1996 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: ...Examines ground-water flow model used to simulate hydrogeologic conditions affecting ground-water flow and contaminant migration in the Cape Cod acquifer beneath the Massachusetts Military Reservation...

Download or read book Ground Water Models written by National Research Council and published by National Academies Press. This book was released on 1990-02-01 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of toxic pollution at Love Canal brought ground water contamination to the forefront of public attention. Since then, ground water science and modeling have become increasingly important in evaluating contamination, setting regulations, and resolving liability issues in court. A clearly written explanation of ground water processes and modeling, Ground Water Models focuses on the practical aspects of model application. It: examines the role of models in regulation, litigation, and policy development; explains ground water processes and describes specific applications for models; presents emerging technologies; and offers specific recommendations for better use of ground water science in policy formation.

Download or read book Analytical Modeling of Solute Transport in Groundwater written by Mark Goltz and published by John Wiley & Sons. This book was released on 2017-02-08 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Teaches, using simple analytical models how physical, chemical, and biological processes in the subsurface affect contaminant transport Uses simple analytical models to demonstrate the impact of subsurface processes on the fate and transport of groundwater contaminants Includes downloadable modeling tool that provides easily understood graphical output for over thirty models Modeling tool and book are integrated to facilitate reader understanding Collects analytical solutions from many sources into a single volume and, for the interested reader, shows how these solutions are derived from the governing model equations

Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1987 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling and Assessment of Flow and Transport in the Hueco Bolson a Transboundary Groundwater System written by Okechukwu Nwaneshiudu and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Potential contamination from hazardous and solid waste landfills stemming from population increase, rapid industrialization, and the proliferation of assembly plants known as the maquiladoras, are of major concern in the U.S.-Mexican border area. Additionally, historical, current, and future stresses on the Hueco Bolson alluvial aquifer in the El Paso/Ciudad Juarez area due to excessive groundwater withdrawal can affect contaminant migration in the area. In the current study, an updated and improved threedimensional numerical groundwater flow and transport model is developed using a current Hueco Bolson groundwater availability model as its basis. The model with contaminant transport is required to access and characterize the extent of vulnerability of the aquifer to potential contamination from landfills in the El Paso/Ciudad Juarez border area. The model developed in this study is very capable of serving as the basis of future studies for water availability, water quality, and contamination assessments in the Hueco Bolson. The implementation of fate and transport modeling and the incorporation of the Visual MODFLOW(R) pre and post processor, requiring MODFLOW 2000 data conversion, enabled significant enhancements to the numerical modeling and computing capabilities for the Hueco Bolson. The model in the current research was also developed by employing MT3DMS(c), ZONEBUDGET, and Visual PEST(R) for automated calibrations. Simulation results found that the Hueco Bolson released more water from storage than the aquifer was being recharged in response to increased pumping to supply the growing border area population. Hence, significant head drops and high levels of drawdown were observed in the El Paso/Ciudad Juarez area. Predictive simulations were completed representing scenarios of potential contamination from the border area sites. Fate and transport results were most sensitive to hydraulic conductivities, flow velocities, and directions at the sites. Sites that were located within the vicinity of the El Paso Valley and the Rio Grande River, where head differences and permeabilities were significant, exhibited the highest potentials for contaminant migration.

Download or read book Contaminant Transport Modeling Through Saturated Porous Media written by Anand M. Hulagabali and published by LAP Lambert Academic Publishing. This book was released on 2014-03 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater quality varies due to the chemical, geochemical, and biochemical reactions of the pollutants in the subsurface flow systems. To reliably predict the fate of contaminant transport in groundwater, an accurate numerical modeling is required. Analytical and numerical simulation models help civil engineering to understand the physical and chemical processes that influence contaminant transport through a saturated soil layer, including advective and dispersive transport as well as sorption.In the present investigation, An attempt has been made to provide a simple but sufficiently accurate methodology for numerical simulation of the one, two and three dimensional contaminant transport through the saturated homogeneous porous media and landfill liners using Finite Element method. Exercise was undertaken to determine the rate of movement of contaminants from landfill, so as to arrive at expected future concentrations of contaminants in the groundwater around landfill. Systematic study conducted to determine the impact of municipal solid waste disposal at Bhalaswa landfill Site in New Delhi has reveled that the groundwater is being significantly contaminated due to the leachate.

Download or read book Modeling Groundwater Flow and Transport of Contaminants at the Cherokee Former Manufactured Gas Plant Site Iowa written by Rahul Biyani and published by . This book was released on 2003 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improper disposal of wastes by former manufactured gas plant (FMGP) sites has resulted in serious environmental threats today. Some of the main contaminants from MGP activities include tar, benzene, toluene, ethylbenzene and xylenes (BTEX), polycyclic aromatic hydrocarbons (PAH), metals and cyanides. During the last decade, monitored natural attenuation (MNA) has become one of the widely accepted choices among researchers and regulators for the clean up of such contaminated sites. The objectives of this study were to develop protocols for the use of Geoprobe direct push technologies (DPT) to characterize the geology and hydrogeology at FMGP sites, compare the capabilities of several publicly available groundwater flow and contaminant transport models (BIOSCREEN, BIOPLUME III and MODFLOW/MODPATH/RT3D) and select a model with the best overall capabilities to model groundwater flow, contaminant transport and to estimate the field-scale biodegradation rates for the implementation of natural attenuation at the Cherokee, Iowa FMGP site. DPT pre-packed screen monitoring wells and dual tube direct push equipment were found to provide results that were equivalent to conventional 2-inch monitoring wells for groundwater sampling and hydraulic conductivity. Use of DPT electrical conductivity probes allowed geological stratigraphy to be easily mapped and provided detailed information of a pinch zone that restricted the groundwater flow at the site. Comparison of different groundwater and transport model showed MODFLOW/MODPATH/RT3D is a more versatile model due to its ability to model the flow and transport in 3-D and provide stable groundwater head and contaminant concentration results. Biodegradation rates were computed using analytical and numerical (modeling) methods for selected compounds. Biodegradation rates for BTEX and PAH estimated by analytical method varied from 0.00019 d−1 and 0.0022 d−1 and 0.0003 d−1 to 0.0003 d−1, respectively. Biodegradation rates calculated for toluene and phenanthrene by numerical method were 0.03 d−1 and 0.006 d−1, respectively. Rates calculated by these two methods were different because of incomplete source characterization and insufficient groundwater sampling locations. A sensitivity analysis of the RT3D model showed that biodegradation rate is the most sensitive parameter.

Download or read book Analysis of Groundwater Modeling Flow and Contaminated Migration written by William C. Walton and published by CRC-Press. This book was released on 1988-12-01 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary Review of Available Models for Groundwater Flow and Contaminant Migration written by F. Quercia and published by . This book was released on 1993 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Concepts Strategy and Software for Practical Three dimensional Contaminant Transport Modeling written by Chunmiao Zheng and published by . This book was released on 1991 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Numerical Simulation of Waste Movement in Groundwater Flow Systems written by John F. Pickens and published by . This book was released on 1979* with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: