Groundwater Contamination in Coastal Aquifers PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Groundwater Contamination in Coastal Aquifers PDF full book. Access full book title Groundwater Contamination in Coastal Aquifers by Senapathi Venkatramanan. Download full books in PDF and EPUB format.
Author: Senapathi Venkatramanan Publisher: Elsevier ISBN: 0323859747 Category : Science Languages : en Pages : 308
Book Description
Groundwater Contamination in Coastal Aquifers: Assessment and Management first describes groundwater contamination in coastal aquifers and then delves into specific topics surrounding various hydrogeochemical processes. Next, the book covers case studies of groundwater quality assessment using recent techniques, explains the various pollutants and contaminants in coastal aquifers, and covers management and remediation methods to control contamination in coastal aquifers. This key reference encompasses various topics in broader perspectives on groundwater contamination in coastal aquifers, providing a significant contribution to the field of hydrogeology. Presents global case studies that show the reader how this issue is affecting sites around the world Includes a remediation plan that solves problems surrounding the management of groundwater, water treatment techniques, and the management of available groundwater resources Provides advanced techniques that can be applied and used as methodologies for solving groundwater issues
Author: Senapathi Venkatramanan Publisher: Elsevier ISBN: 0323859747 Category : Science Languages : en Pages : 308
Book Description
Groundwater Contamination in Coastal Aquifers: Assessment and Management first describes groundwater contamination in coastal aquifers and then delves into specific topics surrounding various hydrogeochemical processes. Next, the book covers case studies of groundwater quality assessment using recent techniques, explains the various pollutants and contaminants in coastal aquifers, and covers management and remediation methods to control contamination in coastal aquifers. This key reference encompasses various topics in broader perspectives on groundwater contamination in coastal aquifers, providing a significant contribution to the field of hydrogeology. Presents global case studies that show the reader how this issue is affecting sites around the world Includes a remediation plan that solves problems surrounding the management of groundwater, water treatment techniques, and the management of available groundwater resources Provides advanced techniques that can be applied and used as methodologies for solving groundwater issues
Author: Jimmy Jiao Publisher: Cambridge University Press ISBN: 1107030595 Category : Business & Economics Languages : en Pages : 421
Book Description
Offers a comprehensive volume discussing groundwater problems in coastal areas, spanning fundamental science to practical water management.
Author: Uri Kafri Publisher: Springer Nature ISBN: 3030511480 Category : Science Languages : en Pages : 504
Book Description
This book presents a collection of essays that address various facets of the hydrogeology of Israel. Despite its small geographic size, Israel exhibits a variety of climates and is located between two regional fluctuating base levels. The respective chapters discuss the variety of hydrogeological configurations and hydrological processes produced by these geographical circumstances. In some cases, the interpretation of these aspects is deliberately left open to debate, because the authors were asked to provide, in addition to their own views, also alternative and even conflicting ones. Hydrogeological configurations similar to those in Israel can be found in other countries around the world. Therefore, researchers, scholars and professionals in this interdisciplinary field can benefit from and directly apply the considerable experience and expertise that has been gathered in Israel over the past few decades.
Author: Meththika Vithanage Publisher: Springer ISBN: 9783642178344 Category : Science Languages : en Pages : 200
Book Description
The goal of this monograph is to disseminate a fundamental understanding of the physical processes of saltwater contamination of shallow sandy aquifers due to an event like December 2004 tsunami or a storm surge event like Hurricane Katrina in the United States in 2005. The main objectives of this book are, 1. Describe the processes occurring in the unstable phenomena associated with tsunami contamination and its nature 2. Disseminate knowledge on parameters which influence saltwater plume migration, use of field experiments, physical experiments and computational modeling, 3. Provide guidelines for mitigation of such contamination and water use after such incident Summary Contaminants are typically released into the subsurface as constituents of a liquid phase in small concentrations with low contaminating speed. Tsunami is a natural hazard which is very fast and therefore the contamination time is also fast. However, the contamination resides very long as well as it can make huge devastation for the whole environment including groundwater. First chapter will discuss the characteristics of tsunami as a natural hazard and its effects. Tsunamis occurs in coastal areas and therefore the groundwater in coastal regions faces contamination by saltwater during a tsunami event. Before discussing the contamination of the aquifer it is important to know the characteristics of such aquifer systems. The nature of the hydrogeologic environment such as the heterogeneity, permeability, conductivity and porosity will affect the subsequent transport process in the subsurface. Hence, the Chapter 2 will introduce the characteristics and the vulnerability of the coastal aquifers especially sandy aquifers. Chapter 3 addresses several aspects of the effect of tsunami on groundwater, including different contamination modes, cleaning of drinking water after the catastrophic event and the studies carried out with regard to water. Three important contamination modes can be pointed out from few others. Direct infiltration, infiltration through saltwater filled wells and infiltration through topographic depressions are those. Chapter 4 outlines the basic parameters, to be tested in different types of field experiments such as water quality investigations, flow and transport modeling etc. separately. For each of these, characterization methods and tools that can be used, including invasive and non invasive sampling approaches, methods for laboratory analysis will be discussed. Geophysics is an important tool for subsurface characterization especially when saltwater is present as a contaminant. Use of geophysics, challenging data and disadvantages of inadequate characterization of the aquifer will also be discussed in this chapter. Physical experiments are very useful in understanding the behavior of subsurface contaminant flow and affecting factors. However, with spatial scale, time and stratigraphy of the media the results may show differences. Specific sensors can be used to detect the concentrations of saltwater with time thus the types, advantages and disadvantages of the sensors will be included in here, Chapter 5. There are few critical parameters needed in these physical experiments such as porosity, dispersion coefficient etc. Methods of obtaining this information will also be incorporated as a guide. Plume shape and behavior changes mainly with the subsurface characteristics of the media. Overall time taken for refreshing the aquifer to the pre-contamination stage will be focused in this chapter. With the increase of computer power, numerical modeling of groundwater flow and solute transport started focusing on density driven flow for risk assessment of the aquifers. Numerous modeling studies were carried out to examine the propagation of dense leachate plumes and also to understand the fundamental issues of hydrodynamic instability and fingering phenomena in density driven flow and transport problems. During variable density flow modeling, plume instability may arise due to many circumstances. Numerical dispersion (artificial, grid dependant smearing of sharp solute concentration fronts) and oscillation (overshooting and undershooting of true solution) are well known difficulties in simulating advection-dominated solute transport problems. It is very important to distinguish between truncation errors and numerical oscillation because truncation errors can result in a different picture from the real physics of the actual system. Numerical studies of dense contaminant plumes from tsunami or storm surge like events and the aquifer cleansing times has not been performed in great detail and so knowledge of variable density plume behavior remains incomplete and this will be addressed in Chapter 6. Chapter 7 explains the different case studies carried out afterwards the Dec, 2004 tsunami to observe and enhance the knowledge on the effect of tsunami on groundwater. Chapter 8 is dedicated to present the technologies and activities that can serve as possible candidates for remediation the saltwater pollution in the aquifers as well as to provide drinking water to the public. Several different techniques have become increasingly popular after the South Asian tsunami incident and this chapter will present those technologies and methods, their strengths and weaknesses as well as cost considerations. Finally, guidelines for use of wells plus drinking water will be given in here.
Author: Jacob Bear Publisher: Springer Science & Business Media ISBN: 9401729697 Category : Science Languages : en Pages : 652
Book Description
Coastal aquifers serve as major sources for freshwater supply in many countries around the world, especially in arid and semi-arid zones. Many coastal areas are also heavily urbanized, a fact that makes the need for freshwater even more acute. Coastal aquifers are highly sensitive to disturbances. Inappropriate management of a coastal aquifer may lead to its destruction as a source for freshwater much earlier than other aquifers which are not connected to the sea. The reason is the threat of seawater intrusion. In many coastal aquifers, intrusion of seawater has become one of the major constraints imposed on groundwater utilization. As sea water intrusion progresses, existing pumping wells, especially those close to the coast, become saline and have to be abandoned. Also, the area above the intruding seawater wedge is lost as a source of natural replenishment to the aquifer. Despite the importance of this subject, so far there does not exist a book that integrates our present knowledge of seawater intrusion, its occurrences, physical mechanism, chemistry, exploration by geo physical and geochemical techniques, conceptual and mathematical modeling, analytical and numerical solution methods, engineering measures of combating seawater intrusion, management strategies, and experience learned from case studies. By presenting this fairly comprehensive volume on the state-of-the-art of knowledge and ex perience on saltwater intrusion, we hoped to transfer this body of knowledge to the geologists, hydrologists, hydraulic engineers, water resources planners, managers, and governmental policy makers, who are engaged in the sustainable development of coastal fresh ground water resources.
Author: V. Subramanian Publisher: Springer Science & Business Media ISBN: 9048130026 Category : Science Languages : en Pages : 264
Book Description
This book deals with the major issues being faced by the coastal population in Asia with emphasis on natural and man-made hazards, climate change impact and pressures caused by mega cities along Asian coasts. The edited book contains chapters authored by experts who are well known in their own fields of specialization relevant to coastal processes. Emphasis has been given to almost all regions of Aisan coast although coverage for south and south eastern regions of Asia is rather strong. Each chapter has been peer reviewed and revised before acceptance. In this book practical suggestions to mitigate problems in sustainable management of coastal regions are also discussed. The book will be useful for students, researchers in physical and social science, policy makers and climate change specialists.
Author: Hillel Rubin Publisher: Springer Science & Business Media ISBN: 3662036746 Category : Science Languages : en Pages : 428
Book Description
The Water Research Institute at the Technion (Israel Institute of Technology) is proud to have initiated and sponsored the International Workshop "Soil and Aquifer Pollution: Non-Aqueous Phase Liquids - Contamination and Recla- tion", held May 13th-15th, 1996, on the Technion campus in Haifa. Groundwater contamination is one of the pressing issues facing Israel and other countries which depend on groundwater for water supply. In Israel, 60% of the water supply comes from groundwater, most of it from two large aquifers. The Coastal Aquifer underlies the area where the largest concentration of human activity already takes place, and where much of future development is expected to occur. It is a phreatic sandstone aquifer, vulnerable to pollution from activities at the surface. The Mountain Aquifer is recharged in the higher terrain to the east, and flows, first in a phreatic zone, then confined, westward and underneath the Coastal Aquifer. This limestone aquifer has higher permeabilities and flow velo- ties, so pollution can reach the groundwater quite readily. Smaller local aquifers are also important components in the national water system. While measures are taken to protect these aquifers from pollution, there are locations where contamination has already occurred. Furthermore, accidental pollution may not be totally avoided in the future. Therefore, understanding the processes of groundwater contamination, recommending the proper measures for preventing it, and determining the best means for reclamation once pollution has occurred, are of great practical importance. Non-aqueous phase liquids (NAPLs) are among the most significant contaminants.
Author: United States. Environmental Protection Agency. Office of Air and Water Programs Publisher: ISBN: Category : Groundwater Languages : en Pages : 108
Book Description
Report on processes and methods of controlling water pollution (pollution control) resulting from salt water intrusion - examines the effects of salt water intrusion on water quality and includes comments on relevant legislation. Graphs, illustrations and references.
Author: Senapathi Venkatramanan
Author: Senapathi Venkatramanan
Author: Jimmy Jiao
Author: Uri Kafri
Author: Meththika Vithanage
Author: Emilio Custodio
Author: Jacob Bear
Author: V. Subramanian
Author: Paul M. Barlow
Author: Hillel Rubin
Author: United States. Environmental Protection Agency. Office of Air and Water Programs