Metal Speciation And Contamination Of Soil
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Metal Speciation and Contamination of Soil
Author | : Herbert E. Allen,Chin-Pao Huang,George W. Bailey,Alan R. Bowers |
Publsiher | : CRC Press |
Total Pages | : 384 |
Release | : 1994-11-29 |
Genre | : Technology & Engineering |
ISBN | : 0873716973 |
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Metal Speciation and Contamination of Soil provides a thorough overview of the biogeochemical processes governing the behavior, transport, and bioavailability of heavy metals in contaminated soils and suggests alternative approaches for effective remediation. This important new book contains contributions from experts in various disciplines who explore the issues from theoretical, experimental, and pragmatic perspectives. Topics include redox chemistry, kinetics of metal reactions, spectroscopic characterization of metal ion reactions at surface, modeling hydrologic transport phenomena and colloid-associated transport of metals through the soil profile to ground water, and remediation alternatives.
The Importance of Chemical Speciation in Environmental Processes
Author | : M. Bernhard,F.E. Brinckman,P.J. Sadler |
Publsiher | : Springer Science & Business Media |
Total Pages | : 758 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9783642704413 |
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Report, the editors replaced the term "speciation" wherever it occurred by "identification and quantification," or "description of abundance," or "reactivity," or "transformation" of a chemical species, according to whichever one of the four meanings the author had evidently meant to convey. In line with the Dahlem Workshop Model, this Report comprises the background papers written in advance of the meeting on the current status of problems in environmental research and on advanced analytical tech niques for the identification and quantification of chemical species, as well as the group reports summarizing the results of the discussions held during the meeting. Each group report was prepared during the meeting by one "rapporteur" with the help of members of that group and finalized by the rapporteur (listed as the first author of the group report) after the meeting, taking into account both verbal comments made during the presentation of the reports in the plenary session at the end of the workshop and written comments received afterwards.
Metals Speciation in Soils
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 114 |
Release | : 1996 |
Genre | : Metals |
ISBN | : MINN:31951D02021010J |
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Heavy Metal Contamination of Water and Soil
Author | : Elham Asrari |
Publsiher | : CRC Press |
Total Pages | : 386 |
Release | : 2014-02-06 |
Genre | : Science |
ISBN | : 9781482239652 |
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This title includes a number of Open Access chapters. Although adverse health effects of heavy metals have been known for a long time, exposure to heavy metals continues and is even increasing in some areas. Remediating heavy metal contaminated soils and water is necessary to reduce the associated health and ecological risks, make the land resource available for agricultural production, enhance food security, and scale down land tenure problems. This book discusses the causes and the environmental impact of heavy metal contamination. It then explores many exciting new methods of analysis and decontamination currently studied and applied in the field today.
Assessing Speciation and Availability of Heavy Metals in Soils and Soil Solutions
Author | : Zongling Ren |
Publsiher | : Unknown |
Total Pages | : 0 |
Release | : 2014 |
Genre | : Electronic Book |
ISBN | : OCLC:903323358 |
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The elevated heavy metal contamination in soils has given rise to the accurate assessment of the availability and mobility of heavy metals and the development of remediation strategies. In this study, soi! column-Donnan membrane technique (SC-DMT) and diffusive gradients in thin¬films gels (DGT) were used to measure the concentration and speciation of Cd, Cu, Ni, Pb, and Zn in eighteen soil solutions, covering a wide range of metal sources (natural and anthropogenic) and concentrations. The availability of Cd, Cu, Pb, and Zn in nine contaminated soils was evaluated by combining chemical extractions with multi-elementary stable isotopic dilution (ID) method. The isotopically exchangeable pool and the operationally defined pool determined by chemical extractions were then compared to probe the relationships between metal availabilities and their bearing phases. The mufti-surface model was used to assess the rote of the major soil components (organic matter, clay, iron hydroxides, and manganese hydroxides) in controlling metal availability. The combination of analytical approaches and speciation modeling can provide mutual validation and a more comprehensive picture of the availability of metals. In our work, model calculation generally provided an adequate prediction of metal speciation in soi! solution and solid phase, and it can be a promising tool to decipher the underlying mechanisms of the differences in metal availabilities in soils.
Environmental Risk Assessment of Soil Contamination
Author | : Maria C. Hernandez Soriano |
Publsiher | : BoD – Books on Demand |
Total Pages | : 922 |
Release | : 2014-03-26 |
Genre | : Technology & Engineering |
ISBN | : 9789535112358 |
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Soil is an irreplaceable resource that sustains life on the planet, challenged by food and energy demands of an increasing population. Therefore, soil contamination constitutes a critical issue to be addressed if we are to secure the life quality of present and future generations. Integrated efforts from researchers and policy makers are required to develop sound risk assessment procedures, remediation strategies and sustainable soil management policies. Environmental Risk Assessment of Soil Contamination provides a wide depiction of current research in soil contamination and risk assessment, encompassing reviews and case studies on soil pollution by heavy metals and organic pollutants. The book introduces several innovative approaches for soil remediation and risk assessment, including advances in phytoremediation and implementation of metabolomics in soil sciences.
Heavy Metals Release in Soils
Author | : H. Magdi Selim,Donald L. Sparks |
Publsiher | : CRC Press |
Total Pages | : 266 |
Release | : 2001-06-15 |
Genre | : Technology & Engineering |
ISBN | : 1420032615 |
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Understanding the mechanisms associated with metal complexes and the sequestering metal contaminants in the environment is essential for effective remediation. Heavy Metal Release in Soils describes and quantifies desorption/release kinetics and dissolution reactions in the release of heavy metals from soil. The book focuses on: New techniques - microscopic surface techniques, NMR and electrophoresis, XAFS, SFM, and time-resolved ATR-FTIR Theoretical analysis and kinetic approaches - adsorption/desorption hysteresis, competitive sorption and transport, multi-component models, speciation kinetics, isotherms and soil and metal parameters, and the role of soil properties on transport Applications - arsenic speciation and mobility in contaminated soils, modeling activity of CD, Zn, and Cu in contaminated soils, and in situ chemical immobilization A timely addition to the literature, this book highlights the desorption/release mechanisms for the purpose of resolving remediation dilemmas in contaminated environments. It gives you the added advantage of case studies at both the microscopic and macroscopic scales, and provides both experimental and numerical investigations. With contributions from an international panel of authors, Heavy Metals Release in Soils fills a gap in the current literature concerned with subsurface contaminant fate and transport processes.
Heavy Metal Contamination of Soil
Author | : Iqbal Ahmad,S. Hayat,John Pichtel |
Publsiher | : Unknown |
Total Pages | : 272 |
Release | : 2005 |
Genre | : Heavy metals |
ISBN | : UOM:39015062617215 |
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This book is an up-to-date treatise on the impact of heavy metal pollution of agricultural soils primarily resulting from long-term application of wastewater, industrial effluents and sewage sludge, and atmospheric deposition. It addresses soil health, soil-microbe interactions, heavy metal accumulation in soil, behavior of metals in soil and bioremediation besides other pertinent topics.