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Author : C. J. Warren
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (247 download)
Download or read book Mobilization and Attenuation of Trace Elements in an Artificially Weathered Fly Ash written by C. J. Warren and published by . This book was released on 1986 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. J. Warren
Publisher :
ISBN 13 :
Total Pages : 89 pages
Book Rating : 4.:/5 (151 download)
Download or read book Mobilization and Attenuation of Trace Elements in an Artificially Weathered Fly Ash written by C. J. Warren and published by . This book was released on 1986 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kenneth S. Sajwan
Publisher : Springer Science & Business Media
ISBN 13 : 1475747578
Total Pages : 347 pages
Book Rating : 4.4/5 (757 download)
Download or read book Chemistry of Trace Elements in Fly Ash written by Kenneth S. Sajwan and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Sidhartha Bhattacharyya
Publisher :
ISBN 13 :
Total Pages : 255 pages
Book Rating : 4.:/5 (663 download)
Download or read book Investigation of Natural Weathering Processes and Artificial Treatment Techniques in the Attenuation of Toxic Metals from Coal Fly Ash written by Sidhartha Bhattacharyya and published by . This book was released on 2010 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal fly ash contains high levels of hazardous trace elements such as As, B, Cr, Mo, Ni, Se, Sr and V, which may have a negative impact on the environment due to potential leaching by acid rain and groundwater. This study seeks to develop new fly ash management techniques by determining the effects of natural weathering on trace element mobility in fly ash and by evaluating the potential use of surfactant-modified zeolite and ferrous sulfate treatment for attenuating the mobility of trace elements associated with fly ash. The effects of weathering on trace element mobility in fly ash were studied using batch competitive adsorption experiments. Fresh fly ash shows high adsorption capacity for As, V and Mo, while weathered fly ash shows high affinity for Ni, Sr, As and V. Both fresh and weathered fly ash show low adsorption capacity for Se and B. Weathering reduced the adsorption capacities of fresh fly ash for As, B, Cr, Mo, Se and V, indicating increased mobility in ash disposal environments. The effectiveness of surfactant-modified zeolite (SMZ) as a PRB material was studied using batch experiments under competitive adsorption conditions. The results showed that SMZ preferably adsorbed V, Mo and Cr over As and Se. Unmodified zeolite (UMZ) showed high adsorption capacities for Ni and Sr. Both SMZ and UMZ failed to remove B from solution. The use of SMZ as a PRB material in coal fly ash management will be limited by its low affinity for B as well as its relatively low affinity for As, Se and cations. Ferrous sulfate treatment of coal fly ash successfully reduced the mobility of oxyanionic trace elements. The unbuffered 1:30 FS treatment was highly successful; oxyanion mobility reductions were: As (24-91%), Cr (82-97%), Mo (79-100%), Se (41-87%) and V (55-100%). On the other hand, the 1:30 FS fly ash treatment failed to reduce the mobility of B, Ni and Sr. Ferrous sulfate treatment is cost effective and can be applied directly to fresh fly ash produced in electric power plants, as well as to the fly ash already placed in the ash disposal facilities.
Author : D.J. Swaine
Publisher : Springer Science & Business Media
ISBN 13 : 9401584966
Total Pages : 322 pages
Book Rating : 4.4/5 (15 download)
Download or read book Environmental Aspects of Trace Elements in Coal written by D.J. Swaine and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Happy he who could learn the causes of things (Virgil, Georgics 11) There is clearly a place for a book on the environmental aspects of trace elements in coal, especially with the increasing use of coal for power production. Our aim is to provide relevant background information and to update the situation regarding trace elements during beneficiation, combustion, .atmospheric deposition, leaching from wastes anti reclamation. The outcome is a balanced account of the overall situation. The initial chapter gives the rationale behind the planning of the book and puts the topics into the context of trace elements in the environment, while the final chapter summarises the subject matter and conclusions of each chapter. The choice of authors was based on their specialised knowledge. Although every effort has been made to ensure uniformity in layout, use of units, references and the like, authors have been given some latitude in expression and their styles have not been curbed. This book is intended primarily for coal scientists and technologists involved in environmental aspects of trace elements during the mining of coal, its beneficiation and usage, especially for power generation, and for regulatory bodies. It is considered to be suitable for relevant postgraduate courses. Just as it has been said that one of Bruckner's symphonies has enough melodies for a Beethoven to have written ten symphonies, so this book has several chapters that could be themes for other books.
Author :
Publisher :
ISBN 13 :
Total Pages : 716 pages
Book Rating : 4.:/5 (3 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1986 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Author : A.J. Chandler
Publisher : Elsevier
ISBN 13 : 0080537189
Total Pages : 1009 pages
Book Rating : 4.0/5 (85 download)
Download or read book Municipal Solid Waste Incinerator Residues written by A.J. Chandler and published by Elsevier. This book was released on 1997-04-09 with total page 1009 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text covers a broad spectrum of topics pertinent to the management of incinerator residues. Background information includes a history of incineration, and the influence of municipal waste composition, incinerator type air pollution control technologies on residue quality. Physical, chemical and leaching characteristics for the various ash streams are described, along with recommended sampling and evaluation methodologies. Residue handling and management options, including, treatment utilisation and disposal are also discussed in detail.
Author : United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment
Publisher :
ISBN 13 :
Total Pages : 316 pages
Book Rating : 4.3/5 (91 download)
Download or read book Coal Combustion Waste Storage and Water Quality written by United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment and published by . This book was released on 2009 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trace Elements in Coal and Coal Wastes written by and published by . This book was released on 1989 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Leslie L. Sloss
Publisher :
ISBN 13 : 9789290294405
Total Pages : 54 pages
Book Rating : 4.2/5 (944 download)
Download or read book Trace Elements and Fly Ash Utilisation written by Leslie L. Sloss and published by . This book was released on 2007 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ishwar P. Murarka
Publisher :
ISBN 13 :
Total Pages : 532 pages
Book Rating : 4.F/5 ( download)
Download or read book Proceedings--Environmental Research Conference on Groundwater Quality and Waste Disposal written by Ishwar P. Murarka and published by . This book was released on 1990 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309039932
Total Pages : 320 pages
Book Rating : 4.3/5 (9 download)
Download or read book Ground Water Models written by National Research Council and published by National Academies Press. This book was released on 1990-02-01 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of toxic pollution at Love Canal brought ground water contamination to the forefront of public attention. Since then, ground water science and modeling have become increasingly important in evaluating contamination, setting regulations, and resolving liability issues in court. A clearly written explanation of ground water processes and modeling, Ground Water Models focuses on the practical aspects of model application. It: examines the role of models in regulation, litigation, and policy development; explains ground water processes and describes specific applications for models; presents emerging technologies; and offers specific recommendations for better use of ground water science in policy formation.
Author : R. Gieré
Publisher : Geological Society of London
ISBN 13 : 9781862391673
Total Pages : 694 pages
Book Rating : 4.3/5 (916 download)
Download or read book Energy, Waste and the Environment written by R. Gieré and published by Geological Society of London. This book was released on 2004 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides incentives for further development of sustainable fuel cycles through a novel and interdisciplinary approach to an Earth science-related topic. The main focus is on geochemical concepts in immobilizing, isolating or neutralizing waste derived from energy production and consumption. The book also addresses the issue of using some types of energy-derived waste as alternative raw materials. Moreover, it highlights research on how certain wastes can be used for energy production, an increasingly important aspect of modern integrated waste management strategies. The main objectives are to: (a) identify the most serious environmental problems related to various types of power generation and associated waste accumulation; (b) present strategies, based on natural analogue materials, for the immobilization of toxic and radioactive waste components through mineralogical barriers; (c) discuss modern procedures for reuse of waste or certain waste components; and (d) review the importance of geochemical modelling in describing and predicting the interaction between waste and the environment.
Author : Candace E. Wall
Publisher :
ISBN 13 :
Total Pages : 302 pages
Book Rating : 4.:/5 (865 download)
Download or read book Assessing the Release of Bioactive Trace Elements from Coal Fly Ash Into Natural Fresh Waters written by Candace E. Wall and published by . This book was released on 2013 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gautham Parangusa Das
Publisher :
ISBN 13 :
Total Pages : 366 pages
Book Rating : 4.:/5 (841 download)
Download or read book Trace Metal Control for Fly Ash Through Attenuation and Solidification written by Gautham Parangusa Das and published by . This book was released on 2004 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research was to investigate two different approaches for controlling trace metals that leach from coal combustion fly ash. In particular, one part of the research program consisted of a systematic evaluation of an array of sorbents for possible use as permeable reactive material. The second part of the research considered the use of mixtures of lime, fly ash, and flue gas desulfurization material (FGD) to stabilize the ash and reduce leachability. To assess the ability of the additives to attenuate heavy metals, batch and column sorption tests were conducted. The methodology involved screening a wide variety of low cost (e.g., steel byproducts, rubber dust, compost) and innovative materials (e.g., kudzu, biofilm, pondweed) as well as conventional additives (activated carbon and alumina, zeolites) for benchmarking purposes. Promising additives included limestone and steel byproducts. In the case of limestone, batch sorption studies revealed large distribution coefficients (K[subscript]d) of 15,740, 1520 and 540 L/kg, for cadmium, chromium and selenium, respectively. However, subsequent column testing yielded K[subscript]d values less than 10 L/kg, suggesting a kinetic limitation on the reaction mechanism for the flow rates investigated. Solidification was investigated on both laboratory and field-scales, where fly ash blended with varying amounts of lime was subjected to various leach procedures. Leaching results showed that arsenic leached below the reporting limit (10 [mu]g/L) for fly ash alone, while the 0.50% lime amendment increased the leachability to nearly 50 [mu]g/L. There is a threshold level of lime amendment, beneath which may result in an increase in pH and leachability of oxyanions such as arsenic, chromium, and selenium. Sufficient lime must be added to engender the cementitious reactions which are responsible for immobilizing contaminants.
Author : Mandar Raghunath Gadgil
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.:/5 (68 download)
Download or read book The Leachability of Trace Elements from Biomass Fly Ash Samples written by Mandar Raghunath Gadgil and published by . This book was released on 2006 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jonathan B. O'Donnell
Publisher :
ISBN 13 :
Total Pages : 163 pages
Book Rating : 4.:/5 (664 download)
Download or read book Leaching of Trace Elements from Roadway Materials Stabilized with Fly Ash written by Jonathan B. O'Donnell and published by . This book was released on 2009 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:
