Mathematical Simulation of Transport of Kepone and Kepone-laden Sediments in the James River Estuary. [Kepone is a Chlorinated Ketone Insecticide]. PDF Download
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Languages : en
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The progress of a mathematical simulation study concerning kepone migration in the James River Estuary between Bailey Bay and the river mouth is described. The simulation is currently underway by applying the finite element sediment and contaminant transport model, FETRA, to solve time-dependent, longitudinal and lateral distributions of sediments and kepone by taking into account sediment-kepone interaction. The FETRA code solves sediment transport for three sediment types (i.e., cohesive and noncohesive sediments, and organic materials). The model also solves kepone transport for dissolved and particulate (attached to sediments) kepone. Particulate kepone is analyzed for those adsorbed by sediment of each sediment type. The accuracy and convergence of the FETRA code were tested for simple one- and two-dimensional equations. These test results indicated excellent agreement between the computer solutions and exact analytical solutions.
![Mathematical Simulation of Transport of Kepone and Kepone-laden Sediments in the James River Estuary. [Kepone is a Chlorinated Ketone Insecticide]. PDF](https://books.google.com/books/content/images/frontcover/nYTHwQEACAAJ?fife=w80-h100)
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Languages : en
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The progress of a mathematical simulation study concerning kepone migration in the James River Estuary between Bailey Bay and the river mouth is described. The simulation is currently underway by applying the finite element sediment and contaminant transport model, FETRA, to solve time-dependent, longitudinal and lateral distributions of sediments and kepone by taking into account sediment-kepone interaction. The FETRA code solves sediment transport for three sediment types (i.e., cohesive and noncohesive sediments, and organic materials). The model also solves kepone transport for dissolved and particulate (attached to sediments) kepone. Particulate kepone is analyzed for those adsorbed by sediment of each sediment type. The accuracy and convergence of the FETRA code were tested for simple one- and two-dimensional equations. These test results indicated excellent agreement between the computer solutions and exact analytical solutions.
Author: Yasuo Onishi
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
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Author: Yasuo Onishi
Publisher:
ISBN:
Category : Chlordecone
Languages : en
Pages : 162
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Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 748
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Author:
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Category :
Languages : en
Pages :
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The mathematical simulation of sediment and Kepone (a highly chlorinated pesticide) transport in the James River estuary was conducted by applying the sediment and contaminant transport model, FETRA, to an 85-km river reach between Bailey and Burwell Bays. The FETRA code is an unsteady, two-dimensional, finite model, utilizing the Galerkin weighted residual method. The model consists of three submodels coupled together to take into account sediment-contaminant interaction. the submodels are: (1) sediment transport model, (2) dissolved contaminant transport model, and (3) particulate contaminant (contaminants adsorbed by sediment) transport model. Transport of sediment and particulate contaminants is simulated for each sediment type or size fraction. The FETRA code was applied to simulate the migration of sediment and Kepone for three river discharges. Tidally influenced depth and velocity distributions in the study area were obtained by the unsteady, one-dimensional code, EXPLORE. These results were used by the two-dimensional code, FETRA, to obtain longitudinal distributions of sediment and Kepone. Hence, the results presented here are cross-sectionally averaged values changing with tidal flow. Comparison of computed results and field data for both sediment and Kepone concentrations indicates very good agreement, confirming the validity of the model. Mathematical simulation of Kepone transport under most probable flow conditions yields an estimate of 89.1 kg/yr of Kepone transported seaward from Burwell Bay. Of this 89.1 kg of total Kepone, 25.3% is carried by sediment, while 74.7% is in a dissolved phase.
Author:
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Category : Power resources
Languages : en
Pages : 692
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Author: Yasuo Onishi
Publisher:
ISBN:
Category : Chlordecone
Languages : en
Pages : 142
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Author: United States. Army. Corps of Engineers. Norfolk District
Publisher:
ISBN:
Category : Chlordecone
Languages : en
Pages : 590
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Author: Barry S. Levy
Publisher: American Public Health Association
ISBN: 9780875530437
Category : Medical
Languages : en
Pages : 628
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Author: Joseph Reynolds
Publisher: John Wiley & Sons
ISBN: 0470139021
Category : Science
Languages : en
Pages : 976
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Book Description
Because of the ubiquitous nature of environmental problems, a variety of scientific disciplines are involved in the development of environmental solutions. The Handbook of Chemical and Environmental Engineering Calculations provides approximately 600 real-world, practical solutions to environmental problems that involve chemical engineering, enabling engineers and applied scientists to meet the professional challenges they face day-to-day. The scientific and mathematical crossover between chemical and environmental engineering is the key to solving a host of environmental problems. Many problems included in the Handbook are intended to demonstrate this crossover, as well as the integration of engineering with current regulations and environmental media such as air, soil, and water. Solutions to the problems are presented in a programmed instructional format. Each problem contains a title, problem statement, data, and solution, with the more difficult problems located near the end of each problem set. The Handbook offers material not only to individuals with limited technical background but also to those with extensive industrial experience. Chapter titles include: Chemical Engineering Fundamentals Chemical Engineering Principles Air Pollution Control Equipment Solid Waste Water Quality and Wastewater Treatment Pollution Prevention Health, Safety, and Accident Management Ideal for students at the graduate and undergraduate levels, the Handbook of Chemical and Environmental Engineering Calculations is also a comprehensive reference for all plant and environmental engineers, particularly those who work with air, drinking water, wastewater, hazardous materials, and solid waste.
