Subsurface Transport and Fate Processes

Subsurface Transport and Fate Processes PDF

Author: Robert C. Knox

Publisher: CRC Press

Published: 2018-01-10

Total Pages: 446

ISBN-13: 1351085441

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This book represents the first comprehensive reference volume available on subsurface transport and fate processes. The volume is organized into four sections covering the basics of contaminant properties and how they affect transport and fate, the fundamental processes affecting subsurface transport and fate of contaminants, applications of transport and fate information to various contaminant types, and utilization of transport and fate information for predicting contaminant behavior. Specific topics such as traditional hydrodynamic processes of advection and dispersion, facilitated transport and contaminant flushing, and individual ground water contaminants are also explored in detail. Subsurface Transport and Fate Processes is ideal for environmental and ground water consultants, regulatory agency personnel, and educators in geology, hydrogeology, civil engineering, and environmental engineering.

Fate and Transport of Subsurface Pollutants

Fate and Transport of Subsurface Pollutants PDF

Author: Pankaj Kumar Gupta

Publisher: Springer Nature

Published: 2020-10-20

Total Pages: 348

ISBN-13: 9811565643

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This volume offers detailed information on the behaviour of various water pollutants, and on the principles and concepts of groundwater flow and transport. It will help readers to understand and execute the planning, supervision, and review of solute transport and groundwater modeling projects. The book also discusses the role and fate of elements that have been identified as major contaminants in surface and subsurface waters, and their adverse effects on ecology and human health. The book explores this theme throughout four sections – a. Understanding Soil-Water Systems, b. Fate and Transport of Pollutants, c. Physico-Chemical Treatment of Wastewater and d. Microbial Techniques Used to Decontaminate Soil-Water Systems. Introducing readers to a range of recent advances concerning the fundamentals of subsurface water treatment, it offers a valuable guide for teachers, researchers, policymakers, and undergraduate and graduate students of hydrology, environmental microbiology, biotechnology and the environmental sciences. It also provides field engineers and industrial practitioners with essential support in the effective remediation and management of polluted sites.

Chemical Fate and Transport in the Environment

Chemical Fate and Transport in the Environment PDF

Author: Harold F. Hemond

Publisher: Academic Press

Published: 2022-08-03

Total Pages: 530

ISBN-13: 0128222530

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Chemical Fate and Transport in the Environment, Fourth Edition explains the fundamental principles of mass transport, chemical partitioning, and chemical/biological transformations of pollutants and naturally occurring chemicals in surface waters, in the subsurface (which includes soil and groundwater), and in the atmosphere. Each of these three major environmental media is introduced by a descriptive overview, followed by presentations of the governing physical, chemical, and biological processes. The text emphasizes intuitively based mathematical models for chemical equilibria, transformations, and transport in the environment. This book serves as a primary text for graduate and senior undergraduate courses in environmental science and engineering, provides relevant scientific knowledge for students of public health and environmental policy, and is a useful reference for environmental practitioners. This fourth edition builds on the third edition, which won a 2015 Textbook Excellence Award (Texty) from The Text and Academic Authors Association. This updated textbook expands the discussion of global climate change, presents concepts of stationarity and sustainability, provides additional coverage of wastewater treatment and air pollution abatement technologies, and includes information on additional anthropogenic pollutants such as plastics, PFAS, and nanoparticles. Tables, figures, and references are updated, and worked examples and practice exercises are included for each chapter. Illustrates the interconnections, similarities, and contrasts among three major environmental media: surface waters, the subsurface (which includes soil and groundwater), and the atmosphere Discusses and builds upon fundamental concepts, teaching students to realistically address environmental problems and preparing students for more advanced studies Each chapter includes many worked examples and extensive practice exercises; a solutions manual is available for instructors

Contaminants in the Subsurface

Contaminants in the Subsurface PDF

Author: National Research Council

Publisher: National Academies Press

Published: 2005-04-23

Total Pages: 371

ISBN-13: 030909447X

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At hundreds of thousands of commercial, industrial, and military sites across the country, subsurface materials including groundwater are contaminated with chemical waste. The last decade has seen growing interest in using aggressive source remediation technologies to remove contaminants from the subsurface, but there is limited understanding of (1) the effectiveness of these technologies and (2) the overall effect of mass removal on groundwater quality. This report reviews the suite of technologies available for source remediation and their ability to reach a variety of cleanup goals, from meeting regulatory standards for groundwater to reducing costs. The report proposes elements of a protocol for accomplishing source remediation that should enable project managers to decide whether and how to pursue source remediation at their sites.

Analytical Modeling of Solute Transport in Groundwater

Analytical Modeling of Solute Transport in Groundwater PDF

Author: Mark Goltz

Publisher: John Wiley & Sons

Published: 2017-02-08

Total Pages: 272

ISBN-13: 1119300274

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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

Characterization, Modeling, Monitoring, and Remediation of Fractured Rock

Characterization, Modeling, Monitoring, and Remediation of Fractured Rock PDF

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2021-01-29

Total Pages: 177

ISBN-13: 0309373727

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Fractured rock is the host or foundation for innumerable engineered structures related to energy, water, waste, and transportation. Characterizing, modeling, and monitoring fractured rock sites is critical to the functioning of those infrastructure, as well as to optimizing resource recovery and contaminant management. Characterization, Modeling, Monitoring, and Remediation of Fractured Rock examines the state of practice and state of art in the characterization of fractured rock and the chemical and biological processes related to subsurface contaminant fate and transport. This report examines new developments, knowledge, and approaches to engineering at fractured rock sites since the publication of the 1996 National Research Council report Rock Fractures and Fluid Flow: Contemporary Understanding and Fluid Flow. Fundamental understanding of the physical nature of fractured rock has changed little since 1996, but many new characterization tools have been developed, and there is now greater appreciation for the importance of chemical and biological processes that can occur in the fractured rock environment. The findings of Characterization, Modeling, Monitoring, and Remediation of Fractured Rock can be applied to all types of engineered infrastructure, but especially to engineered repositories for buried or stored waste and to fractured rock sites that have been contaminated as a result of past disposal or other practices. The recommendations of this report are intended to help the practitioner, researcher, and decision maker take a more interdisciplinary approach to engineering in the fractured rock environment. This report describes how existing tools-some only recently developed-can be used to increase the accuracy and reliability of engineering design and management given the interacting forces of nature. With an interdisciplinary approach, it is possible to conceptualize and model the fractured rock environment with acceptable levels of uncertainty and reliability, and to design systems that maximize remediation and long-term performance. Better scientific understanding could inform regulations, policies, and implementation guidelines related to infrastructure development and operations. The recommendations for research and applications to enhance practice of this book make it a valuable resource for students and practitioners in this field.

Oil Spill Dispersants

Oil Spill Dispersants PDF

Author: Committee on Understanding Oil Spill Dispersants: Efficacy and Effects

Publisher:

Published: 2005

Total Pages: 408

ISBN-13:

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Approximately 3 million gallons of oil or refined petroleum products are spilled into U.S. waters every year. Oil dispersants (chemical agents such as surfactants, solvents, and other compounds) are used to reduce the effect of oil spills by changing the chemical and physical properties of the oil. By enhancing the amount of oil that physically mixes into the water, dispersants can reduce the potential that a surface slick will contaminate shoreline habitats. Although called for in the Oil Pollution Act of 1990 as a tool for minimizing the impact of oil spills, the use of chemical dispersants has long been controversial. This book reviews the adequacy of existing information and ongoing research regarding the effectiveness of dispersants as an oil spill response technique, as well as the effect of dispersed oil on marine and coastal ecosystems. Oil Spill Dispersants also includes recommended steps for policy makers faced with making hard choices regarding the use of dispersants as part of spill contingency planning efforts or during actual spills.

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