Download or read book Pollutant Migration Through Clay Soils written by University of Sydney. School of Civil and Mining Engineering and published by . This book was released on 1985 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Migration and Fate of Pollutants in Soils and Subsoils written by Domenico Petruzzelli and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experts in soil and environmental sciences as well as in the theory of wave propagation and numerical modeling methods provide a comprehensive account of different aspects of pollutant migration in soils, aquifers, and other geological formations. Emphasis is laid on the analysis of contributing phenomena and their interactions, modeling, and the practical use of such knowledge and models for guidance in disposal operations, preventive measures to minimize ecological damage, prediction of consequences of seepage, and design of remedial actions. Topics covered include the chemical behavior of soils, sorption and retardation, biochemistry of pollutants, ion exchange and kinetics of reactions in soils, measurement of adsorption and desorption, multiphase hydrodynamics, multicomponent wave theory and the coherence concept, nonlinear wave propagation in geological formations, multiphase convective transport, diffusion and fast reaction, modeling pollutant transport, numerical methods, dispersion of contaminants from landfills, risk analysis, water reuse, and radioactive soil contamination at Chernobyl.
Download or read book Inorganic Contaminant Transport Through Unsaturated Clay Soil written by Mohammad Reza Sabour and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fate of contaminant migration through the subsurface environment as well as their potential hazard to humans, animals, and aquatic life has become one of the major current concerns of the scientific community. Accordingly, various theoretical and experimental studies have been conducted on the saturated soil by many researchers. The literature review emphasizes that the problem of the unsaturated transport of contaminants through porous media has received little attention. Thus, the present work is carried out to contribute to the study of heavy metals migration within unsaturated clay soil through mathematical modeling of the mechanisms and parameters which influence the transport phenomenon. For successful modeling, it is imperative that parameters which affect the transport phenomenon be investigated and determined properly. Hence, the study was conducted through two principal parts. The first part is an experimental investigation to quantify the various soil-water (solution) interactions that have an effect on the flow and contaminant transport and to derive the constitutive relationships required in mathematical modeling. The second part develops a contaminant migration mathematical model which includes unsaturated flow, hydrodynamic dispersion, and physico-chemical reaction between the solid and the liquid phase, employing the theory of mass transport. The experimental investigation contains two main sets of laboratory tests: (i) some independent tests in order to isolate and better understand the individual processes, and (ii) some tests on experimental models of the real phenomena to verify the related parameters in a combined kinetic situation. The results of all experiments are followed by discussion, in order to better understand the phenomenon behavior, and to realize the relationships among the various processes. Based on the above mechanisms, the governing equations of the problem are derived to provide a quantitative account of the behavior of the phenomenon. Finally, a finite volume algorithm is developed, on the basis of the mathematical model, in order to solve the contaminant transport equations numerically. Using experimental results, the numerical model is then calibrated and verified. The developed computer code provides the ability to predict the contaminant migration for any depth and period of time. Based on this capability the concentration variations of the solution along the soil profile, especially for long time periods, are predicted and illustrated.
Download or read book Bioavailability of Contaminants in Soils and Sediments written by National Research Council and published by National Academies Press. This book was released on 2003-05-03 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
Download or read book Soil and Aquifer Pollution written by Hillel Rubin and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Environmental Geochemistry written by Benedetto DeVivo and published by Elsevier. This book was released on 2017-09-18 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Geochemistry: Site Characterization, Data Analysis and Case Histories, Second Edition, reviews the role of geochemistry in the environment and details state-of-the-art applications of these principles in the field, specifically in pollution and remediation situations. Chapters cover both philosophy and procedures, as well as applications, in an array of issues in environmental geochemistry including health problems related to environment pollution, waste disposal and data base management. This updated edition also includes illustrations of specific case histories of site characterization and remediation of brownfield sites. Covers numerous global case studies allowing readers to see principles in action Explores the environmental impacts on soils, water and air in terms of both inorganic and organic geochemistry Written by a well-respected author team, with over 100 years of experience combined Includes updated content on: urban geochemical mapping, chemical speciation, characterizing a brownsfield site and the relationship between heavy metal distributions and cancer mortality
Download or read book Investigation of Landfill Leachate Pollutant Attenuation by Soils written by Wallace H. Fuller and published by . This book was released on 1978 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil pollution a hidden reality written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-04-30 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents key messages and the state-of-the-art of soil pollution, its implications on food safety and human health. It aims to set the basis for further discussion during the forthcoming Global Symposium on Soil Pollution (GSOP18), to be held at FAO HQ from May 2nd to 4th 2018. The publication has been reviewed by the Intergovernmental Technical Panel on Soil (ITPS) and contributing authors. It addresses scientific evidences on soil pollution and highlights the need to assess the extent of soil pollution globally in order to achieve food safety and sustainable development. This is linked to FAO’s strategic objectives, especially SO1, SO2, SO4 and SO5 because of the crucial role of soils to ensure effective nutrient cycling to produce nutritious and safe food, reduce atmospheric CO2 and N2O concentrations and thus mitigate climate change, develop sustainable soil management practices that enhance agricultural resilience to extreme climate events by reducing soil degradation processes. This document will be a reference material for those interested in learning more about sources and effects of soil pollution.
Download or read book Advances in Remediation Techniques for Polluted Soils and Groundwater written by Pankaj Kumar Gupta and published by Elsevier. This book was released on 2021-12-02 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Remediation Techniques for Polluted Soils and Groundwater focuses on the thematic areas for assessment, mitigation, and management of polluted sites. This book covers advances in modelling approaches, including Machine Learning (ML)/ Artificial Intelligence (AI) applications; GIS and remote sensing; sensors; impacts of climate change on geogenic contaminants; and socio-economic impacts in the poor rural and urban areas, which are lacking in a more comprehensive manner in the previous titles. This book encompasses updated information as well as future directions for researchers working in the field of management and remediation of polluted sites. Introduces fate and transport of multi-pollutants under varying subsurface conditions Details underlying mechanisms of biodegradation and biodetoxification of geogenic, industrial and emerging pollutants Presents recent advances and challenges in assessment, water quality modeling, uncertainty, and water supply management Provides authoritative contributions on the diverse aspects of management and remediation from leading experts around the world
Download or read book Contaminant Migration Effect on Dispersion Coefficients written by RN. Yong and published by . This book was released on 1990 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, the variable nature of the dispersion coefficients of some typical contaminant ions is evaluated through experiments with leaching columns. Three clay soils were used: a natural clay soil (60% clay content) obtained near an operating landfill site, and laboratory-prepared kaolinite and illite clay soils. Sufficient quantities of the contaminant leachate obtained from the nearby operating municipal solid-waste landfill site were used for all the leaching tests. The ions chosen for evaluation in this paper were chloride, potassium, magnesium, and calcium ions.
Download or read book Liners of Natural Porous Materials to Minimize Pollutant Migration written by Wallace H. Fuller and published by . This book was released on 1981 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Pollution written by Ibrahim Mirsal and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: This graduate-level text and reference work is unique among the soil literature. It deals with the interdisciplinary fields of soil pollution and remediation. It starts off with a thorough and comprehensible introduction to the relevant fundamentals of mineralogy, chemistry, and soil properties. Readers are thus well prepared to understand the biochemical aspects of soil remediation then presented. The book’s holistic approach and narrative style are complemented by numerous and detailed illustrations. Soil pollution is an asset not only to graduate students and instructors, but also to professionals from the environmental and agricultural sciences, as it provides an integrated overview of previously separately treated material.
Download or read book Hazardous and Industrial Solid Waste Testing and Disposal written by American Society for Testing and Materials and published by ASTM International. This book was released on 1986 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landfilling of Waste written by T.H. Christensen and published by CRC Press. This book was released on 2020-10-28 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: In view of the great demand for information regarding landfills, a series of international reference books on landfilling of waste has been established. This book, the second volume, deals with lining and leachate collection. It consists of edited, selected contributions to the International Symposia on Sanitary Landfills held in Sardinia every second year.
Download or read book Assessment Restoration and Reclamation of Mining Influenced Soils written by Jaume Bech and published by Academic Press. This book was released on 2017-09-09 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assessment, Restoration and Reclamation of Mining Influenced Soils covers processes operating in the environment as a result of mining activity, including the whole spectra of negative effects of anthropopressure and the environment, from changes in soil chemistry, changes in soil physical properties, geomechanical disturbances, and mine water discharges. Mining activity and its waste are an environmental concern. Knowledge of the fate of potentially harmful elements and their effect on plants and the food chain, and ultimately on human health, is still being understood. Therefore, there is a need for better knowledge on the origin, distribution, and management of mine waste on a global level. This book provides information on hazard assessment and remediation of the disturbed environment, including stabilization of contaminated soils and phytoremediation, and will help scientists and public authorities formulate answers to the daily challenges related to the restoration of contaminated land. Provides a thorough overview of the processes operating on mining-devastated areas, as well as origin, distribution, and deactivation of harmful elements Includes outcomes and recommendations of the Global Mining Initiative that are widely regarded as the code of conduct in the minerals industry Contains global case studies that elucidate various aspects of assessment and restoration of mine-contaminated land
Download or read book Soil Subsurface Change written by Bruno Yaron and published by Springer Science & Business Media. This book was released on 2012-02-18 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book combines soil science, earth science, and environmental geochemistry, providing comprehensive background information for specialists interested in chemical-induced changes in the soil-subsurface system. Readers are introduced to the chemistry of contaminants that often disturb the natural soil-subsurface equilibrium as a result of human activity. While the soil-subsurface system has in many cases been affected by human impact, the effects of chemical contaminants on the actual matrix and properties have been largely neglected. The major focus of the book is on changes to the soil-subsurface matrix and properties caused by chemical pollution. By integrating results available in the literature, we observe that chemical pollutants may lead to the irreversible formation of a new soil-subsurface regime characterized by a matrix and properties different than those of the natural regime. In contrast to the geological time scales dictating natural changes to the matrix and properties of the soil-subsurface system, the time scale associated with chemical pollutant-induced changes is far shorter and extends over a “human lifetime scale.” The numerous examples presented in the book confirm that chemical contamination should be considered as an additional factor in the formation of a contemporary soil-subsurface regime that is different than that of the pristine system.
Download or read book Advances in Groundwater Pollution Control and Remediation written by Mustafa Aral ARAL and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past decades, environmental scientists, economists and physicists have been juggling critical issues within environmental strategies and environmental management styles in order to find a feasible medium between limited resources, long term demands and objectives, and interest groups. In the search for best management alternatives, practice has undergone a pendulum swing between stages that can be characterised as frontier economics, radical environmentalism, resource management/allocation, selective environmentalism and sustainable environmental management. The next stage of management must answer such questions as: `Can there be a global - uniform environmental strategy?', or `Based on their characteristics, can different issues, different regions and different applications have unique environmental strategies?' Based on this premise, the next stage of management may be identified as risk based sustainable environmental management. The goal of this style will be the risk based, long term, harmonious management of economic resources and environmental preservation for health, safety and prosperity of sustainable populations. When evaluation of risk or risk based ranking of management alternatives enter the picture as part of the overall puzzle, then social policy, ethics and health issues assume a very important role in the management strategy. Economic incentives and environmental constraints have to be considered harmoniously, the main emphasis being placed on protection and preservation of human health and the long term sustaining of populations.
