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The accumulation of large amounts of ash from fossil fuel combustion for electric power plant generation is becoming a major environmental concern in the United States. Furthermore, stringent environmental regulations mandated by the Environmental Protection Agency through the Clean Air Act, Clean Water Act, Resource Conservation and Recovery Act, as well as state and local environmental regulations may result in even more ash production with subsequent contact with the environment. The concentrations of trace elements in coal residues are extremely variable and depend on the composition of the original coal, conditions during combustion, the efficiency of emission control devices, storage and handling ofbyproducts, and climate. The research papers in this book were presented as a part of the Sixth International Conference on the Biogeochemistry of Trace Elements held at the University of Guelph, Ontario, Canada, from July 29-August 2, 2001. The purpose of this corit'erence was to present current knowledge on the source, pathways, behavior and effects of trace elements in soils, waters, plants and animals. In addition, the book also includes invited research papers from scientists who have done significant research in the area of coal and coal combustion byproducts. All the research papers presented herein have been subjected to peer review.
Sommario
1. The Production and Use of Coal Combustion Products.- Environmental Impact of Coal Combustion Residues.- 2. Occurrence and Mobilization Potential of Trace Elements from Disposed Coal Combustion Fly Ash.- 3. Trace Elements and Their Mobility in Coal Ash/Fly Ash from Indian Power Plants in View of Its Disposal and Bulk Use in Agriculture.- 4. The Effects of Switching from Coal to Alternative Fuels on Heavy Metals Emissions from Cement Manufacturing.- 5. Practical and Regulatory Challenges in Controlling Trace Element Inputs to Soils from Land Application of Fluidized Bed Combustion Residues.- 6. The Mine Water Leaching Procedure: Evaluating the Environmental Risk of Backfilling Mines with Coal Ash.- 7. Moisture Retention and Hydraulic Conductivity of Coarse-Textured Soils Amended with Coal Combustion Fly Ash.- 8. Geochemistry of an Abandoned Landfill Containing Coal Combustion Waste: Implications for Remediation.- Trece Elements in Fly Ashes.- 9. Selenium Content and Oxidation States in Fly Ashes from Western U.S. Coals.- 10. Rare Earth Elements in Fly Ashes as Potential Indicators of Anthropogenic Soil Contamination.- Transport and Leachability of Metals from Coal and Ash Piles.- 11. Mobility and Adsorption of Trace Elements in a Coal Residues-Affected Swamp.- 12. Potential Use of Fly Ash to Remove Cadmium from Aqueous Systems.- 13. Comparative Study of Elemental Transport and Distribution in Soils Amended with Fly Ash and Sewage Sludge Ash.- 14. Arsenic Speciation in a Fly Ash Settling Basin System.- 15. Lead Desorption and Remobilization Potential by Colloid Particles Contaminated Sites.- 16. Selenium and Molybdenum Adsorption on Kaolinite Clay Mineral Coated with Hydrous Oxides of Iron and Aluminum.- Use of Coal Ash as Agricultural Soil Amendment.- 17. Influence ofCoal Ash/Organic Waste Application on Distribution of Trace Metals in Soil, Plant, and Water.- 18. The Effect of Flue Gas Desulfurization Residue on Corn (Zea mays L.) Growth and Leachate Salinity Multiple Season Data from Amended Mesocosms.- 19. Use of Coal Combustion By-Products (CCBP) in Horticultural and Turfgrass Industries.- 20. Heavy Metal Distribution and Bioavailability in Coal Ash and Sludge Amended Acid Latetritic Soil under Field Conditions.- 21. Mine Soil Remediation Using Coal Ash and Compost Mixtures.- 22. Soil Amendments Promote Vegetation Establishment and Control Acidity in Coal Combustion Waste.- About the Editors.
Riassunto
The accumulation of large amounts of ash from fossil fuel combustion for electric power plant generation is becoming a major environmental concern in the United States. Furthermore, stringent environmental regulations mandated by the Environmental Protection Agency through the Clean Air Act, Clean Water Act, Resource Conservation and Recovery Act, as well as state and local environmental regulations may result in even more ash production with subsequent contact with the environment. The concentrations of trace elements in coal residues are extremely variable and depend on the composition of the original coal, conditions during combustion, the efficiency of emission control devices, storage and handling ofbyproducts, and climate. The research papers in this book were presented as a part of the Sixth International Conference on the Biogeochemistry of Trace Elements held at the University of Guelph, Ontario, Canada, from July 29-August 2, 2001. The purpose of this corit'erence was to present current knowledge on the source, pathways, behavior and effects of trace elements in soils, waters, plants and animals. In addition, the book also includes invited research papers from scientists who have done significant research in the area of coal and coal combustion byproducts. All the research papers presented herein have been subjected to peer review.
