Download or read book Leaching of Arsenic from Fly Ashes Derived from Six Bituminous Coals Burned in Midwestern U S Electrical Power Plants written by Chandra U. Shekar and published by . This book was released on 1993 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Spectrographic Analysis of Arsenic in Anthracitic Coal Ashes written by Ronald Henry Hall and published by . This book was released on with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Utilizing Industrial Ash to Stabilize Arsenic in Soil Contaminated from Chromated Copper Arsenate CCA Treated Wood written by Rachel E. Blodgett and published by . This book was released on 2011 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: From 1980 to 1985, Shelby Wood Specialty Inc. operated on a 0.8 hectare site in Tenaha, Texas. As part of their operation, chromated copper arsenate (CCA) was used to pressure treat wood products. During the company's operation, CCA leached from stockpiled wood products contaminating nearby soil. A soil column study was performed to test what type and concentration of industrial fly ash would effectively stabilize arsenic in CCA contaminated soils. The types of fly ash used were wood fly ash, Class C coal fly ash, and Class F coal fly ash. Each ash type was tested at 0, 4, 10, 16, and 22 percent of soil volume. Weekly rain simulations were performed for 7 weeks by treating the columns with a 250 ml synthetic rain solution. Arsenic mobility was measured using Inductively Coupled Plasma (ICP) analysis, with a detection limit of 0.0265 ppm for arsenic, of leachate samples collected from the treated soil columns. A two way analysis of variance (ANOVA) of data showed a significant interaction between time and treatments (P
Download or read book Handbook of Arsenic Toxicology written by Swaran Jeet Singh Flora and published by Academic Press. This book was released on 2023-02-21 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Arsenic Toxicology, Second Edition presents the latest findings on arsenic, including its chemistry, sources and effects on the environment and human health. The book discusses both acute and chronic effects, discussing many aspects of arsenic, from physical and chemical properties, exposure, epidemiology, organ toxicity, diagnosis, prevention and treatment. Fully updated and revised, this new edition includes new topics on risk assessment, molecular mechanisms of arsenic, advances in the integrated approach to testing, assessment and development, evaluation and application of high content predictive models, and new alternative methods (NAMS) in the context of Adverse Outcome Pathways (AOPs) to assess toxicology. This comprehensive resource allows readers to effectively assess the risks related to arsenic, providing them with all they need to know on arsenic exposure, toxicity and toxicity prevention. - Brings together current findings on the effects of arsenic on the environment and human health - Includes state-of-the-art techniques in arsenic toxicokinetics, speciation and molecular mechanisms - Provides all the information needed for effective risk assessment, prevention and countermeasures
Download or read book The Behavior of Fly Ash Derived Arsenic in Seawater written by Vincent Thomas Breslin and published by . This book was released on 1982 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Medicine written by Committee on Curriculum Development in Environmental Medicine and published by National Academies Press. This book was released on 1995-05-12 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt: People are increasingly concerned about potential environmental health hazards and often ask their physicians questions such as: "Is the tap water safe to drink?" "Is it safe to live near power lines?" Unfortunately, physicians often lack the information and training related to environmental health risks needed to answer such questions. This book discusses six competency based learning objectives for all medical school students, discusses the relevance of environmental health to specific courses and clerkships, and demonstrates how to integrate environmental health into the curriculum through published case studies, some of which are included in one of the book's three appendices. Also included is a guide on where to obtain additional information for treatment, referral, and follow-up for diseases with possible environmental and/or occupational origins.
Download or read book Leaching of Arsenic and Selenium from Fly Ash in the Simulated Field Systems written by Lenin P. Kasthuri and published by . This book was released on 2006 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Fly ash accounts for nearly 60% of coal combustion products produced in the United States. Although fly ash is beneficially used in the cement and concrete industries, in waste stabilization, and as a structural fill, about 60% is disposed in landfills or ponds. Trace elements of major environmental concern such as As, Se, Hg, Cr, Cd, Ni, Pb, Cu, Co etc end up on fly ash particles as a result of coal combustion, which may be potentially released to the environment. For utilization purposes, fly ash is classified as class C or class F, depending primarily on its Si+Al+Fe content. The westernsub-bituminousminous coal typically produces class C fly ash, which is also higher in calcium than class F fly ash typically produced from eastern bituminous coal. Due to the differences in ash composition, the leaching behavior of trace elements varies between different types of fly ashes. In addition, activated carbon and ammonia may be used in power plants to control mercury and NOx emission, which also may affect trace element leaching. This study focused on the leaching potential of two major oxyanions of concern, arsenic and selenium, from different fly ashes under simulated field conditions. The results indicated that As and Se, which occur primarily as anionic species in water, were less leachable from the class C ash compared to the class F ash, at least partially due to the higher calcium content in the class C ash. Results also indicated that the mixing of class C ash and class F ash can significantly reduce the leaching of arsenic compared to the Class F ash alone. Activated carbon and ammonia based technologies do not seem to change the leaching characteristics of both arsenic and selenium from fly ash under natural conditions"--Abstract, leaf iv.
Download or read book Heavy Metals in Soils written by B. J. Alloway and published by Springer Science & Business Media. This book was released on 1995 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heavy metals in soils continue to receive increasing attention due to the growing scientific and public awareness of environmental issues and the development of analytical techniques to measure their concentrations accurately. Building on the success and acclaim of the first edition, this book continues to provide an up-to-date, balanced and comprehensive review of the subject in two sections: the first providing an introduction to the metals chemistry, sources and methods used for their analysis; and the second containing chapters dealing with individual elements in detail.
Download or read book Reactions of Arsenic Compounds in Pyrite Ashes and Their Potential Influence on Underground Water Quality written by A. Lodolo and published by . This book was released on 2014 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Speciation of Arsenic Selenium and Chromium in Wildfire Impacted Soils and Ashes written by Ruth E. Wolf and published by . This book was released on 2010 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ashes and Arsenic written by SM Reine and published by SM Reine. This book was released on 2015-01-31 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agent Cèsar Hawke is in his element when he’s investigating magical crime. And with his boss out of town, Cèsar gets to pick which cases he works on. He’s bent on doing nothing involving demons, zombies, or fallen angels this time. Instead, he’s going to find the witch who used magic to rob a bank. Easy stuff. Cèsar plans to catch the perp before his boss gets home. But when he digs into the robbery, he finds much more than missing money. He also finds a deadly turf battle between two covens and a trail of bloody violence. A trail that leads directly to his brother, Domingo Hawke. Domingo wants Cèsar’s help taking down his enemies. Forget that Cèsar works for the Office of Preternatural Affairs, forget allegiances, forget pesky “contracts” and “conduct.” Domingo is calling in a favor and the Hawke family is too tight to refuse. Blood is the most powerful ingredient in any witch’s spell, after all…
Download or read book Arsenic Research and Global Sustainability written by Prosun Bhattacharya and published by CRC Press. This book was released on 2016-06-08 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Congress "Arsenic in the Environment" offers an international, multi- and interdisciplinary discussion platform for research and innovation aimed towards a holistic solution to the problem posed by the environmental toxin arsenic, with considerable societal impact. The congress has focused on cutting edge and breakthrough research in physical, chemical, toxicological, medical, agricultural and other specific issues on arsenic across a broader environmental realm. The Congress "Arsenic in the Environment" was first organized in Mexico City (As2006) followed by As2008 in Valencia, Spain, As2010 in Tainan, Taiwan, As2012 in Cairns, Australia and As2014 in Buenos Aires, Argentina. The 6th International Congress As2016 was held June 19-23, 2016 in Stockholm, Sweden and was entitled Arsenic Research and Global Sustainability. The Congress addressed the broader context of arsenic research along the following themes: Theme 1: Arsenic in Environmental Matrices and Interactions (Air, Water, Soil and Biological Matrices) Theme 2: Arsenic in Food Chain Theme 3: Arsenic and Health Theme 4: Clean Water Technology for Control of Arsenic Theme 5: Societal issues, Policy Studies, Mitigation and Management Long term exposure to low-to-medium levels of arsenic via contaminated food and drinking water can have a serious impact on human health and globally, more than 100 million people are at risk. Since the end of the 20th century, arsenic in drinking water (mainly groundwater) has emerged as a global health concern. In the past decade, the presence of arsenic in plant foods – especially rice – has gained increasing attention. In the Nordic countries in particular, the use of water-soluble inorganic arsenic chemicals (e.g. chromated copper arsenate, CCA) as wood preservatives and the mining of sulfidic ores have been flagged as health concern. The issue has been accentuated by discoveries of naturally occurring arsenic in groundwater, primarily in the private wells, in parts of the Fennoscandian Shield and in sedimentary formations, with potentially detrimental effects on public health. Sweden has been at the forefront of research on the health effects of arsenic, technological solutions for arsenic removal, and sustainable mitigation measures for developing countries. Hosting this Congress in Sweden was also relevant because historically Sweden has been one of the leading producer of As2O3 and its emission from the smelting industries in northern Sweden and has successfully implemented actions to reduce the industrial emissions of arsenic as well as minimizing the use of materials and products containing arsenic in since 1977. The Congress has gathered professionals involved in different segments of interdisciplinary research in an open forum, and strengthened relations between academia, industry, research laboratories, government agencies and the private sector to share an optimal atmosphere for exchange of knowledge, discoveries and discussions about the problem of arsenic in the environment and catalyze the knowledge generation and innovations at a policy context to achieve the goals for post 2015 Sustainable Development.
Download or read book Treated Bottom Ash Medium and Method of Arsenic Removal from Drinking Water written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A method for low-cost arsenic removal from drinking water using chemically prepared bottom ash pre-treated with ferrous sulfate and then sodium hydroxide. Deposits on the surface of particles of bottom ash form of activated iron adsorbent with a high affinity for arsenic. In laboratory tests, a miniscule 5 grams of pre-treated bottom ash was sufficient to remove the arsenic from 2 liters of 2400 ppb (parts per billion) arsenic-laden water to a level below 50 ppb (the present United States Environmental Protection Agency limit). By increasing the amount of pre-treated bottom ash, even lower levels of post-treatment arsenic are expected. It is further expected that this invention supplies a very low-cost solution to arsenic poisoning for large population segments.
Download or read book Arsenic written by Charles O. Abernathy and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Society of Environmental Geochemistry and Health (SEGH) Second International Conference on Arsenic Exposure and Health Effects was held June 12-14, 1995 in San Diego, California. The conference was at tended by 152 people who heard 41 presentations on all aspects of arsenic research. The speakers represented 14 countries. Approximately 40 of the participants and speakers were from countries other than the US. The participants represented government, academia, industry and the interested public. The sponsorship ofthe conference is a good indicationofthe wide spread interest in the subject and the meeting. The sponsors, in addition to SEGH, were the US Environmental Protection Agency (US EPA), the Agency for Toxic Substances and Disease Registry (ATSDR), the Atlantic Richfield Company (ARCO), the Electric Power Research Institute (EPRI), the American Water Works Association Research Foundation (AWWARF), Kennecott Corporation, the American Smelting and Refining Company (ASARCO), and the International Council on Metals in the Environment (ICME). The funding was split approximately equally between industry (including industrial organizations such as EPRI) and government. In addition to the many fine presentations, the meeting provided a forum for scientists from different countries to compare experiences and share information. It also provided a forum for the discussion of both scientific and policy issues between representatives of various governmental bodies (at the local, state, and federal level) and representatives of various indus trial organizations. These discussions occurred both in the formal meetings and informal settings during the meeting.
Download or read book Biological and Environmental Effects of Arsenic written by B.A. Fowler and published by Elsevier. This book was released on 2013-10-22 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics in Environmental Health, Volume 6: Biological and Environmental Effects of Arsenic focuses on the properties, characteristics, and reactions of arsenic and its effects on the environment. The selection first tackles the mobilization of arsenic by natural and industrial processes and emissions, cycling, and effects of arsenic in soil ecosystems. Discussions focus on the effects of arsenic on plants and soil microorganisms, exposure through consumption, sources of arsenic, and mobilization of arsenic by natural processes and industrial activities. The publication then ponders on environmental reaction and analysis methods and arsenical metabolism and toxicity to freshwater and marine species. The text examines the metabolism of arsenic and epidemiology of human arsenic exposure, including acute and chronic effects by arsenic in man, absorption, tissue distribution and retention, and elimination and biological half-time. The publication then takes a look at the toxicity of arsenic and its compounds, as well as biological transformation of arsenic compounds in soil ecosystems and effects on plants; biotransformation of arsenic compounds and toxicity to freshwater and marine biota; and environmental transformation of arsenic in freshwater/marine ecosystems. The selection is a dependable reference for readers interested in the biological and environmental effects of arsenic.
Download or read book Handbook of Practical X Ray Fluorescence Analysis written by Burkhard Beckhoff and published by Springer Science & Business Media. This book was released on 2007-05-18 with total page 897 pages. Available in PDF, EPUB and Kindle. Book excerpt: X-Ray fluorescence analysis is an established technique for non-destructive elemental materials analysis. This book gives a user-oriented practical guidance to the application of this method. The book gives a survey of the theoretical fundamentals, analytical instrumentation, software for data processing, various excitation regimes including gracing incidents and microfocus measurements, quantitative analysis, applications in routine and micro analysis, mineralogy, biology, medicine, criminal investigations, archeology, metallurgy, abrasion, microelectronics, environmental air and water analysis. This book is the bible of X-Ray fluorescence analysis. It gives the basic knowledge on this technique, information on analytical equipment and guides the reader to the various applications. It appeals to researchers, analytically active engineers and advanced students.
Download or read book The Analysis of Ashes and Alloys written by L. Parry and published by . This book was released on 1908 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
