Modeling Groundwater Flow and Pollution - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Modeling Groundwater Flow and Pollution write by Jacob Bear. This book was released on 2012-12-06. Modeling Groundwater Flow and Pollution available in PDF, EPUB and Kindle. Groundwater constitutes an important component of many water resource systems, supplying water for domestic use, for industry, and for agriculture. Management of a groundwater system, an aquifer, or a system of aquifers, means making such decisions as to the total quantity of water to be withdrawn annually, the location of wells for pumping and for artificial recharge and their rates, and control conditions at aquifer boundaries. Not less important are decisions related to groundwater qUality. In fact, the quantity and quality problems cannot be separated. In many parts of the world, with the increased withdrawal of ground water, often beyond permissible limits, the quality of groundwater has been continuously deteriorating, causing much concern to both suppliers and users. In recent years, in addition to general groundwater quality aspects, public attention has been focused on groundwater contamination by hazardous industrial wastes, by leachate from landfills, by oil spills, and by agricultural activities such as the use of fertilizers, pesticides, and herbicides, and by radioactive waste in repositories located in deep geological formations, to mention some of the most acute contamination sources. In all these cases, management means making decisions to achieve goals without violating specified constraints. In order to enable the planner, or the decision maker, to compare alternative modes of action and to ensure that the constraints are not violated, a tool is needed that will provide information about the response of the system (the aquifer) to various alternatives.
Modeling Groundwater Flow and Contaminant Transport
Modeling Groundwater Flow and Contaminant Transport - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Modeling Groundwater Flow and Contaminant Transport write by Jacob Bear. This book was released on 2010-01-18. Modeling Groundwater Flow and Contaminant Transport available in PDF, EPUB and Kindle. In many parts of the world, groundwater resources are under increasing threat from growing demands, wasteful use, and contamination. To face the challenge, good planning and management practices are needed. A key to the management of groundwater is the ability to model the movement of fluids and contaminants in the subsurface. The purpose of this book is to construct conceptual and mathematical models that can provide the information required for making decisions associated with the management of groundwater resources, and the remediation of contaminated aquifers. The basic approach of this book is to accurately describe the underlying physics of groundwater flow and solute transport in heterogeneous porous media, starting at the microscopic level, and to rigorously derive their mathematical representation at the macroscopic levels. The well-posed, macroscopic mathematical models are formulated for saturated, single phase flow, as well as for unsaturated and multiphase flow, and for the transport of single and multiple chemical species. Numerical models are presented and computer codes are reviewed, as tools for solving the models. The problem of seawater intrusion into coastal aquifers is examined and modeled. The issues of uncertainty in model input data and output are addressed. The book concludes with a chapter on the management of groundwater resources. Although one of the main objectives of this book is to construct mathematical models, the amount of mathematics required is kept minimal.
Mathematical Modeling of Groundwater Pollution
Mathematical Modeling of Groundwater Pollution - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Mathematical Modeling of Groundwater Pollution write by Ne-Zheng Sun. This book was released on 2014-07-08. Mathematical Modeling of Groundwater Pollution available in PDF, EPUB and Kindle. Groundwater is one of the most important resources in the world. In many areas, water supplies for industrial, domestic, and agricultural uses are de pendent on groundwater. As an "open" system, groundwater may exchange mass and energy with its neighboring systems (soil, air, and surface water) through adsorption, ion-exchange, infiltration, evaporation, inflow, outflow, and other exchange forms. Consequently, both the quantity and quality of groundwater may vary with environmental changes and human activities. Due to population growth, and industrial and agricultural development, more and more groundwater is extracted, especially in arid areas. If the groundwater management problem is not seriously considered, over extraction may lead to groundwater mining, salt water intrusion, and land subsidence. In fact, the quality of groundwater is gradually deteriorating throughout the world. The problem of groundwater pollution has appeared, not only in developed countries, but also in developing countries. Ground water pollution is a serious environmental problem that may damage human health, destroy the ecosystem, and cause water shortage.
3D-Groundwater Modeling with PMWIN
3D-Groundwater Modeling with PMWIN - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook 3D-Groundwater Modeling with PMWIN write by Wen-Hsing Chiang. This book was released on 2013-06-29. 3D-Groundwater Modeling with PMWIN available in PDF, EPUB and Kindle. This book and CD-ROM offer a complete simulation system for modeling groundwater flow and transport processes. The companion full-version software (PMWIN) comes with a professional graphical user-interface, supported models and programs and several other useful modeling tools. Tools include a Presentation Tool, a Result Extractor, a Field Interpolator, a Field Generator, a Water Budget Calculator and a Graphic Viewer. Book and CD-ROM are targeted at novice and experienced groundwater modelers.
Modeling Groundwater Flow and Pollution
Modeling Groundwater Flow and Pollution - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Modeling Groundwater Flow and Pollution write by Jacob Bear. This book was released on 1987. Modeling Groundwater Flow and Pollution available in PDF, EPUB and Kindle.
