Estimation, Optimization, and Value of Information in Groundwater Remediation

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Author :
Publisher : Stanford University
ISBN 13 :
Total Pages : 215 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Estimation, Optimization, and Value of Information in Groundwater Remediation by : Xiaoyi Liu

Download or read book Estimation, Optimization, and Value of Information in Groundwater Remediation written by Xiaoyi Liu and published by Stanford University. This book was released on 2011 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solving groundwater problems involves a system of methods in characterization and optimization. However, no matter how theoretically sound a method may be, when it is applied in the field, uncertainty is always an important factor that cannot be neglected. Indeed, a good theory or method has to be validated in field applications, and uncertainty propagates from one stage (e.g. characterization) of the application to the next (e.g. remediation optimization). Thus, it is essential for such methods not only to include uncertainty but also to quantify uncertainty in a practical sense. This dissertation covers three important topics in groundwater remediation: site characterization, remediation optimization, and value of information. First, groundwater contamination site characterization with Monte Carlo methods, specifically, Markov chain Monte Carlo (MCMC) methods, is introduced. Then, another subsurface characterization method, stochastic inverse modeling, is covered with an emphasis on solving large-scale characterization problems, meaning resolving the subsurface heterogeneity with a high-resolution. Both methods provide estimation of the site and uncertainty about the estimation. When these characterization results are used for site management such as remediation management, effects of uncertainty on optimization need to be quantified under the specific context of the remediation problem, and traditional measures of uncertainty such as variance and correlation coefficients cannot handle this job well because they do not necessarily depict the severity of uncertainty. In this dissertation, value of information (VOI), defined as the expected cost with the present state of uncertainty minus the expected cost if uncertainty were fully or partially removed, is proposed as a context-specific measure of uncertainty, i.e., it is dependent on site conditions and remediation strategies as well as specific remediation objectives and unit costs. Several laboratory and numerical applications on hydraulic tomography and DNAPL contamination remediation are included in this dissertation to show the efficacy of the methods proposed.

Estimation, Optimization, and Value of Information in Groundwater Remediation

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (742 download)

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Book Synopsis Estimation, Optimization, and Value of Information in Groundwater Remediation by : Xiaoyi Liu

Download or read book Estimation, Optimization, and Value of Information in Groundwater Remediation written by Xiaoyi Liu and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Solving groundwater problems involves a system of methods in characterization and optimization. However, no matter how theoretically sound a method may be, when it is applied in the field, uncertainty is always an important factor that cannot be neglected. Indeed, a good theory or method has to be validated in field applications, and uncertainty propagates from one stage (e.g. characterization) of the application to the next (e.g. remediation optimization). Thus, it is essential for such methods not only to include uncertainty but also to quantify uncertainty in a practical sense. This dissertation covers three important topics in groundwater remediation: site characterization, remediation optimization, and value of information. First, groundwater contamination site characterization with Monte Carlo methods, specifically, Markov chain Monte Carlo (MCMC) methods, is introduced. Then, another subsurface characterization method, stochastic inverse modeling, is covered with an emphasis on solving large-scale characterization problems, meaning resolving the subsurface heterogeneity with a high-resolution. Both methods provide estimation of the site and uncertainty about the estimation. When these characterization results are used for site management such as remediation management, effects of uncertainty on optimization need to be quantified under the specific context of the remediation problem, and traditional measures of uncertainty such as variance and correlation coefficients cannot handle this job well because they do not necessarily depict the severity of uncertainty. In this dissertation, value of information (VOI), defined as the expected cost with the present state of uncertainty minus the expected cost if uncertainty were fully or partially removed, is proposed as a context-specific measure of uncertainty, i.e., it is dependent on site conditions and remediation strategies as well as specific remediation objectives and unit costs. Several laboratory and numerical applications on hydraulic tomography and DNAPL contamination remediation are included in this dissertation to show the efficacy of the methods proposed.

Valuing Ground Water

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Author :
Publisher : National Academies Press
ISBN 13 : 0309175003
Total Pages : 203 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Valuing Ground Water by : National Research Council

Download or read book Valuing Ground Water written by National Research Council and published by National Academies Press. This book was released on 1997-07-10 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because water in the United State has not been traded in markets, there is no meaningful estimate of what it would cost if it were traded. But failing to establish ground water's valueâ€"for in situ uses such as sustaining wetlands as well as for extractive uses such as agricultureâ€"will lead to continued overuse and degradation of the nation's aquifers. In Valuing Ground Water an interdisciplinary committee integrates the latest economic, legal, and physical knowledge about ground water and methods for valuing this resource, making it comprehensible to decision-makers involved in Superfund cleanup efforts, local wellhead protection programs, water allocation, and other water-related management issues. Using the concept of total economic value, this volume provides a framework for calculating the economic value of ground water and evaluating tradeoffs between competing uses of it. Included are seven case studies where ground-water valuation has been or could be used in decisionmaking. The committee examines trends in ground-water management, factors that contribute to its value, and issues surrounding ground-water allocation and legal rights to its use. The book discusses economic valuation of natural resources and reviews several valuation methods. Presenting conclusions, recommendations, and research priorities, Valuing Ground Water will be of interest to those concerned about ground-water issues: policymakers, regulators, economists, attorneys, researchers, resource managers, and environmental advocates.

The Economics of Groundwater Remediation and Protection

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Publisher : CRC Press
ISBN 13 : 0203495810
Total Pages : 368 pages
Book Rating : 4.2/5 (34 download)

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Book Synopsis The Economics of Groundwater Remediation and Protection by : Paul E. Hardisty

Download or read book The Economics of Groundwater Remediation and Protection written by Paul E. Hardisty and published by CRC Press. This book was released on 2004-12-20 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Economic literature is often too theoretical for engineers and policymakers to put into practical use, while scientific literature on the remediation of contaminated aquifers rarely considers costs and benefits. Written by a hydrogeologist and an economist, The Economics of Groundwater Remediation and Protection integrates economics and cost-benefit analysis tools with optimal protection and remediation strategies for groundwater resources. The book provides a thorough introduction of the concepts of groundwater flow and contaminant transport, and the basics of economic decision making techniques. It illustrates the types of risks and impacts caused by groundwater contamination, and the economic benefits of its remediation. The volume reviews a wide range of issues such as cost, implementation, and expectations of success for the latest remediation trends and techniques. The book shows how economic analysis can be used to determine how much we should pay for groundwater clean-up, and when spending too much - or too little - actually makes us all worse-off. The authors' step-by-step methodology for decision-making focuses on determining optimal remedial objectives, from containment to extensive cleanup, and the selection of least-cost alternatives. They use examples from their personal experience to illustrate the methodologies in action and put the issues into perspective. Combining the theoretical and practical aspects of science, policy, and economics, this book places the importance of groundwater remediation in the context of environmental economics, protection, and preservation. The Economics of Groundwater Remediation and Protection is also an excellent introduction to innovative solutions for funding remediation projects, education, and incentive programs, such as mitigation banking, land pollution credit schemes, and conservation credit alternatives.

Practical Design Calculations for Groundwater and Soil Remediation, Second Edition

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Publisher : CRC Press
ISBN 13 : 1466585234
Total Pages : 324 pages
Book Rating : 4.4/5 (665 download)

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Book Synopsis Practical Design Calculations for Groundwater and Soil Remediation, Second Edition by : Jeff Kuo

Download or read book Practical Design Calculations for Groundwater and Soil Remediation, Second Edition written by Jeff Kuo and published by CRC Press. This book was released on 2014-06-02 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes Illustrative Applications of Practical Design Calculations Written in a straightforward style and user-friendly format, Practical Design Calculations for Groundwater and Soil Remediation, Second Edition highlights the essential concepts and important aspects of major design calculations used in soil and groundwater remediation. Drawing from the author’s teaching and consulting experience, this text provides practical information that addresses the current needs of practicing engineers, scientists, and legal experts in the field. What’s New in This Edition: This latest edition covers important aspects of major design calculations as well as practical and relevant working information for groundwater and soil remediation. Realistic examples are used liberally to illustrate the applications of the design calculations. Many examples are designed to assist the readers in building the right concepts. The text begins with an introductory chapter; it then illustrates the engineering calculations needed during site assessment and remedial investigation. It continues with a discussion on plume migration in soil and groundwater. It then covers the mass-balance concept, reaction kinetics, and types, configurations, and sizing of reactors. The author incorporates important design calculations for commonly used in situ and ex situ soil and groundwater remediation technologies, such as soil venting, air sparging, air stripping, bioremediation, and chemical oxidation, and off-gas treatment technologies. He also presents design calculations for capture zone and optimal well spacing. Includes both SI and US customary units, as well as unit conversions Presents examples that directly follow the design equations Provides discussion that assists engineers in building proper concepts Practical Design Calculations for Groundwater and Soil Remediation, Second Edition also serves as a reference or textbook for students dedicated to the study of site remediation.

Least-Cost Groundwater Remediation Design Using Uncertain Hydrogeological Information

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Author :
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (684 download)

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Book Synopsis Least-Cost Groundwater Remediation Design Using Uncertain Hydrogeological Information by :

Download or read book Least-Cost Groundwater Remediation Design Using Uncertain Hydrogeological Information written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this research is to develop a computer code that will facilitate design of robust risk based pump and treat groundwater remediation and management systems. The resulting systems will operate under both gradient and concentration constraints. The design is a least cost design. The element of risk in the remediation design considered in this work is that due to the uncertainty in the hydraulic conductivity of the contaminated aquifer in question. Considerable work has been done in the field of optimal groundwater remediation and management design. Existent design algorithms depend upon the reliability of the groundwater flow and transport models to predict the movement of contamination in a given aquifer. The reliability of these mathematical models is, in turn, dependent upon variables that describe the physical attributes of the aquifer in question. The hydraulic conductivity of the aquifer is the most influential of the state variables that are used to de scribe groundwater flow and transport. Many models assume the hydraulic conductivity is known with certainty. However, field data shows that the hydraulic conductivity is uncertain An immediate goal of this research is to successfully apply a new method of optimization to incorporate uncertainty in hydraulic conductivity into the groundwater remediation design subject to gradient and concentration constraints. In doing this, a new method of sampling uncertainty distributions has been formulated and successfully implemented. A new method of solving nonconvex optimization problems has also been successfully developed and applied. This method, called the tunneling method, is an efficient technique for solving optimization problems where multiple interior local minimum values exist in the feasible region (3). The results of this work provide a tool to create cost-effective design-risk-based groundwater-management systems.

Statistical estimation and visualization of groundwater contamination data

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Publisher : DIANE Publishing
ISBN 13 : 1428902236
Total Pages : 59 pages
Book Rating : 4.4/5 (289 download)

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Book Synopsis Statistical estimation and visualization of groundwater contamination data by :

Download or read book Statistical estimation and visualization of groundwater contamination data written by and published by DIANE Publishing. This book was released on with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Physicochemical Groundwater Remediation

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 0306469286
Total Pages : 368 pages
Book Rating : 4.3/5 (64 download)

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Book Synopsis Physicochemical Groundwater Remediation by : James A. Smith

Download or read book Physicochemical Groundwater Remediation written by James A. Smith and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: As we transition into the 21st century, it is apparent that this is an exciting time for environmental engineers and scientists studying remediation technologies. There has been a rapid development of new ways to clean-up polluted groundwater. Research activities of the past and next 10 years will have a dramatic impact on the quality of the subsurface environment for the next century. In 20, or even 10 years from now, our approach to subsurface remediation will probably be vastly different than it is today. Many of the emerging technologies presented in this book will form the basis of standard remediation practices of the future. Physicochemical Groundwater Remediation presents detailed information on multiple emerging technologies for the remediation of the contaminated subsurface environment. All of these technologies apply our knowledge of physical and chemical processes to clean up ground water and the unsaturated zone, and many (if not all) of these emerging technologies will help define standard practices in the future. These technologies include in situ sorptive and reactive treatment walls, surfactant-enhanced aquifer remediation, optimization analyses for remediation system design, chemical, electrochemical, and biochemical remediation processes, and monitored natural attenuation. You will learn how palladium catalyzes the dehalogenation of chlorinated solvents. You will find out how barometric pumping can naturally remove significant quantities of volatile organic pollutants from shallow ground water and the unsaturated zone. You can learn about mobilizing non-aqueous phase liquids (NAPLs) without risking significant downward migration of the NAPL. You can find out how processes such as electroosmosis and electromigration can be exploited for groundwater remediation purposes and how zero-valent iron and zeolite treatment walls can be used in situ to treat and control contaminant plume migration. Contributors to this book are experts in groundwater remediation processes, and they represent industry, consulting, academia, and government. If your work involves the clean up of contaminated soil and groundwater, this book is an essential reference to keep you up to date on the most promising new developments in remediation research.

Computationally Efficient Optimization of Groundwater Remediation Using Derivative-based and Heuristic Algorithms

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Author :
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Computationally Efficient Optimization of Groundwater Remediation Using Derivative-based and Heuristic Algorithms by : Raju Marcus Rohde

Download or read book Computationally Efficient Optimization of Groundwater Remediation Using Derivative-based and Heuristic Algorithms written by Raju Marcus Rohde and published by . This book was released on 2002 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Valuing Ground Water

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Publisher : National Academies Press
ISBN 13 : 0309523621
Total Pages : 203 pages
Book Rating : 4.3/5 (95 download)

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Book Synopsis Valuing Ground Water by : Committee on Valuing Ground Water

Download or read book Valuing Ground Water written by Committee on Valuing Ground Water and published by National Academies Press. This book was released on 1997-07-24 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because water in the United State has not been traded in markets, there is no meaningful estimate of what it would cost if it were traded. But failing to establish ground water's value--for in situ uses such as sustaining wetlands as well as for extractive uses such as agriculture--will lead to continued overuse and degradation of the nation's aquifers. In Valuing Ground Water an interdisciplinary committee integrates the latest economic, legal, and physical knowledge about ground water and methods for valuing this resource, making it comprehensible to decisionmakers involved in Superfund cleanup efforts, local wellhead protection programs, water allocation, and other water-related management issues. Using the concept of total economic value, this volume provides a framework for calculating the economic value of ground water and evaluating tradeoffs between competing uses of it. Included are seven case studies where ground-water valuation has been or could be used in decisionmaking. The committee examines trends in ground-water management, factors that contribute to its value, and issues surrounding ground-water allocation and legal rights to its use. The book discusses economic valuation of natural resources and reviews several valuation methods. Presenting conclusions, recommendations, and research priorities, Valuing Ground Water will be of interest to those concerned about ground-water issues: policymakers, regulators, economists, attorneys, researchers, resource managers, and environmental advocates.

Soil and Groundwater Remediation Technologies

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Publisher : CRC Press
ISBN 13 : 1000046826
Total Pages : 351 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Soil and Groundwater Remediation Technologies by : Yong Sik Ok

Download or read book Soil and Groundwater Remediation Technologies written by Yong Sik Ok and published by CRC Press. This book was released on 2020-03-23 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers various soil and water treatment technologies due to increasing global soil and water pollution. In many countries, the management of contaminated land has matured, and it is developing in many others. Topics covered include chemical and ecological risk assessment of contaminated sites; phytomanagement of contaminants; arsenic removal; selection and technology diffusion; technologies and socio-environmental management; post-remediation long-term management; soil and groundwater laws and regulations; and trace element regulation limits in soil. Future prospects of soil and groundwater remediation are critically discussed in this book. Hence, readers will learn to understand the future prospects of soil and groundwater contaminants and remediation measures. Key Features: Discusses conventional and novel aspects of soil and groundwater remediation technologies Includes new monitoring/sensing technologies for soil and groundwater pollution Features a case study of remediation of contaminated sites in the old, industrial, Ruhr area in Germany Highlights soil washing, soil flushing, and stabilization/solidification Presents information on emerging contaminants that exhibit new challenges This book is designed for undergraduate and graduate courses and can be used as a handbook for researchers, policy makers, and local governmental institutes. Soil and Groundwater Remediation Technologies: A Practical Guide is written by a team of leading global experts in the field.

Estimating Groundwater Recharge

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Publisher : Cambridge University Press
ISBN 13 : 1139491393
Total Pages : pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Estimating Groundwater Recharge by : Richard W. Healy

Download or read book Estimating Groundwater Recharge written by Richard W. Healy and published by Cambridge University Press. This book was released on 2010-09-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding groundwater recharge is essential for successful management of water resources and modeling fluid and contaminant transport within the subsurface. This book provides a critical evaluation of the theory and assumptions that underlie methods for estimating rates of groundwater recharge. Detailed explanations of the methods are provided - allowing readers to apply many of the techniques themselves without needing to consult additional references. Numerous practical examples highlight benefits and limitations of each method. Approximately 900 references allow advanced practitioners to pursue additional information on any method. For the first time, theoretical and practical considerations for selecting and applying methods for estimating groundwater recharge are covered in a single volume with uniform presentation. Hydrogeologists, water-resource specialists, civil and agricultural engineers, earth and environmental scientists and agronomists will benefit from this informative and practical book. It can serve as the primary text for a graduate-level course on groundwater recharge or as an adjunct text for courses on groundwater hydrology or hydrogeology. For the benefit of students and instructors, problem sets of varying difficulty are available at http://wwwbrr.cr.usgs.gov/projects/GW_Unsat/Recharge_Book/

The Role of Uncertainty in the Optimization of Groundwater Remediation Systems

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Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (347 download)

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Book Synopsis The Role of Uncertainty in the Optimization of Groundwater Remediation Systems by : Changlin Huang

Download or read book The Role of Uncertainty in the Optimization of Groundwater Remediation Systems written by Changlin Huang and published by . This book was released on 1996 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Natural Attenuation for Groundwater Remediation

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Publisher : National Academies Press
ISBN 13 : 0309132800
Total Pages : 288 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Natural Attenuation for Groundwater Remediation by : Commission on Geosciences, Environment, and Resources

Download or read book Natural Attenuation for Groundwater Remediation written by Commission on Geosciences, Environment, and Resources and published by National Academies Press. This book was released on 2000-07-31 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past decade, officials responsible for clean-up of contaminated groundwater have increasingly turned to natural attenuation-essentially allowing naturally occurring processes to reduce the toxic potential of contaminants-versus engineered solutions. This saves both money and headaches. To the people in surrounding communities, though, it can appear that clean-up officials are simply walking away from contaminated sites. When is natural attenuation the appropriate approach to a clean-up? This book presents the consensus of a diverse committee, informed by the views of researchers, regulators, and community activists. The committee reviews the likely effectiveness of natural attenuation with different classes of contaminants-and describes how to evaluate the "footprints" of natural attenuation at a site to determine whether natural processes will provide adequate clean-up. Included are recommendations for regulatory change. The committee emphasizes the importance of the public's belief and attitudes toward remediation and provides guidance on involving community stakeholders throughout the clean-up process. The book explores how contamination occurs, explaining concepts and terms, and includes case studies from the Hanford nuclear site, military bases, as well as other sites. It provides historical background and important data on clean-up processes and goes on to offer critical reviews of 14 published protocols for evaluating natural attenuation.

Methodology for Estimating Times of Remediation Associated with Monitored Natural Attenuation

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Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Methodology for Estimating Times of Remediation Associated with Monitored Natural Attenuation by :

Download or read book Methodology for Estimating Times of Remediation Associated with Monitored Natural Attenuation written by and published by . This book was released on 2003 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Contaminated Ground Water and Sediment

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Publisher : CRC Press
ISBN 13 : 0203494156
Total Pages : 288 pages
Book Rating : 4.2/5 (34 download)

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Book Synopsis Contaminated Ground Water and Sediment by : Calvin C. Chien

Download or read book Contaminated Ground Water and Sediment written by Calvin C. Chien and published by CRC Press. This book was released on 2003-11-24 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the documented result of an expert workshop, Modeling and Management of Emerging Environmental Issues, held at Penn State University. This event assembled four panels of modeling experts from the U.S. and Canada to discuss modeling technology development and application in order to promote sound and cost-effective environmental decision-making. This thorough analysis provides an overview on the state-of-the-art in current practice and identifies emerging research and development trends within modeling technology. Each of the discussions considers not only technical issues, but regulatory and cost factors as well.

Remediation system evaluation Claremont Polychemical Superfund site, Old Bethpage, New York

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Publisher : DIANE Publishing
ISBN 13 : 1428900535
Total Pages : 38 pages
Book Rating : 4.4/5 (289 download)

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Book Synopsis Remediation system evaluation Claremont Polychemical Superfund site, Old Bethpage, New York by :

Download or read book Remediation system evaluation Claremont Polychemical Superfund site, Old Bethpage, New York written by and published by DIANE Publishing. This book was released on with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: