Uranium In The Environment

This book presents the results from the Uranium Mining and Hydrogeology Congress held in September 2005, in Freiberg, Germany. It addresses scientists and engineers involved in the areas of uranium mining and milling sites, clean-up measures, emissions of nuclear power plants and radioactive waste disposal, as well as political decision-makers. The topics covered are: impact on groundwater from radionuclide emission, analytical specification techniques, chemical toxicity, radioisotope plant uptake, microbiology, geochemical and reactive transport, case studies on active and abandoned uranium mines and milling sites, long-term storage of radioactive waste, passive in situ treatment techniques and risk assessment studies. The accompanying CD-ROM includes all papers in colour.

In recent years, radioactive contamination in the environment by uranium (U) and its daughters has caused increasing concerns globally. This book provides recent developments and comprehensive knowledge to the researchers and academicians who are working on uranium contaminated areas worldwide. This book covers topics ranging from the beginning of the nuclear age until today, including historical views and epidemiological studies. Modelling practices and evaluation of radiological and chemical impact of uranium on man and the environment are included. Also covered are analytical methods used for the determination of uranium in geo/bio environments. Some chapters explore factors which influence uranium speciation and in consequence plant uptake/translocation. Last but not least, several chapters provide approaches and practices for remediation of uranium contaminated areas.

Uranium is an element to be found ubiquitous in rock, soil, and water. Uranium concentrations in natural ground water can be more than several hundreds μg/l without impact from mining, nuclear industry, and fertilizers. Considering the WHO recommendation for drinking water of 15 μg/l (has been as low as 2 μg/l before) due to the chemical toxicity of uranium the element uranium has become an important issue in environmental research. Besides natural enrichment of uranium in aquifers uranium mining and milling activities, further uranium processing to nuclear fuel, emissions form burning coal and oil, and the application of uranium containing phosphate fertilizers may enrich the natural uranium concentrations in soil and water by far. In October 1995 the first international conference on Uranium Mining and Hydrogeology (UMH I) was held in Freiberg being organized by the Department of Geology at the Technical University Bergakademie Freiberg by the support of the Saxon State Ministry of Geology and Environment. Due to the large scientific interest in the topic of uranium a second conference (UMH II) took place in Freiberg in September 1998. Furthermore, in September 2002 scientists working on the topic of uranium mining and hydrogeology attended the third conference (UMH III) which was jointly held together with the International Mine Water - sociation (IMWA) Symposium 2002. The reviewed papers and posters of the 2002 conference have been published by Springer entitled Uranium in the aquatic en- ronment (edited by Merkel, Planer-Friedrich and Wolkersdorfer).

Uranium mining in the Commonwealth of Virginia has been prohibited since 1982 by a state moratorium, although approval for restricted uranium exploration in the state was granted in 2007. Uranium Mining in Virginia examines the scientific, technical, environmental, human health and safety, and regulatory aspects of uranium mining, milling, and processing as they relate to the Commonwealth of Virginia for the purpose of assisting the Commonwealth to determine whether uranium mining, milling, and processing can be undertaken in a manner that safeguards the environment, natural and historic resources, agricultural lands, and the health and well-being of its citizens. According to this report, if Virginia lifts its moratorium, there are "steep hurdles to be surmounted" before mining and processing could take place within a regulatory setting that appropriately protects workers, the public, and the environment, especially given that the state has no experience regulating mining and processing of the radioactive element. The authoring committee was not asked to recommend whether uranium mining should be permitted, or to consider the potential benefits to the state were uranium mining to be pursued. It also was not asked to compare the relative risks of uranium mining to the mining of other fuels such as coal. This book will be of interest to decision makers at the state and local level, the energy industry, and concerned citizens.

Uranium is a naturally occurring, ubiquitous heavy metal. In various chemical forms, natural uranium is found in all soils, rocks, seas and oceans. It is also present in drinking water and food. Uranium was discovered in 1781 by Klaprot, a pharmacist in Berlin, in the Joachisthal silver mines. This book starts with a short history of uranium. It continues with the legacy of uranium mining and the authors go on to discuss the environmental and health effects of depleted uranium, which has the unique potential to threaten all natural resources, including human society because of its radiotoxic effects. Uranium migration properties are explored through the geological structures and the groundwater systems based on the determination of its total concentration essential for environmental studies. Other chapters examine the recovery of uranium from phosphate rock; the influence of uranium on the environment and the studies of content of uranium in soil, building materials, drinking water and even in the urine of specific population such as in the Czech Republic, a uranium rich territory; the types of uranium deposits; uranium bioremediation as an eco-friendly, promising approach, which will play an irreplaceable role in global nuclear energy development; discussions on uranium as one of the most widespread contaminants in groundwater in mining areas, as well as in surface waters in Brazil; and an examination of fuel materials that have been developed for use in nuclear power reactors including uranium. Bulk uranium-based systems are very complex and it is difficult to draw unambiguous conclusion on their properties and reaction mechanisms from experiments. Therefore in this book, laboratory experiments using simple model systems - thin films, for single effect studies which have a ground-breaking nature are explored in detail in this book.

This book addresses scientists and engineers involved in the areas of uranium mining and milling sites, clean-up measures, emissions of nuclear power plants and radioactive waste disposal, as well as political decision-makers. The topics covered are: impact on groundwater from radionuclide emission, analytical speciation techniques, chemical toxicity, radioisotope plant uptake, microbiology catalyzing U(6+) to U(4+) reduction, geochemical and reactive transport, case studies on abandoned uranium mines and milling sites, long-term storage of radioactive waste, passive in situ treatment techniques and risk assessment studies.

Rising fossil fuel prices and concerns about greenhouse gas emissions are fostering a nuclear power renaissance and a revitalized uranium mining industry across the American West. In The Price of Nuclear Power, environmental sociologist Stephanie Malin offers an on-the-ground portrait of several uranium communities caught between the harmful legacy of previous mining booms and the potential promise of new economic development. Using this context, she examines how shifting notions of environmental justice inspire divergent views about nuclear power’s sustainability and equally divisive forms of social activism. Drawing on extensive fieldwork conducted in rural isolated towns such as Monticello, Utah, and Nucla and Naturita, Colorado, as well as in upscale communities like Telluride, Colorado, and incorporating interviews with community leaders, environmental activists, radiation regulators, and mining executives, Malin uncovers a fundamental paradox of the nuclear renaissance: the communities most hurt by uranium’s legacy—such as high rates of cancers, respiratory ailments, and reproductive disorders—were actually quick to support industry renewal. She shows that many impoverished communities support mining not only because of the employment opportunities, but also out of a personal identification with uranium, a sense of patriotism, and new notions of environmentalism. But other communities, such as Telluride, have become sites of resistance, skeptical of industry and government promises of safe mining, fearing that regulatory enforcement won’t be strong enough. Indeed, Malin shows that the nuclear renaissance has exacerbated social divisions across the Colorado Plateau, threatening social cohesion. Malin further illustrates ways in which renewed uranium production is not a socially sustainable form of energy development for rural communities, as it is utterly dependent on unstable global markets. The Price of Nuclear Power is an insightful portrait of the local impact of the nuclear renaissance and the social and environmental tensions inherent in the rebirth of uranium mining.