Download or read book Use of Coal in Areas of Water Shortage written by Gordon R. Couch and published by . This book was released on 2005 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal written by National Research Council and published by National Academies Press. This book was released on 2007-12-21 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal will continue to provide a major portion of energy requirements in the United States for at least the next several decades. It is imperative that accurate information describing the amount, location, and quality of the coal resources and reserves be available to fulfill energy needs. It is also important that the United States extract its coal resources efficiently, safely, and in an environmentally responsible manner. A renewed focus on federal support for coal-related research, coordinated across agencies and with the active participation of the states and industrial sector, is a critical element for each of these requirements. Coal focuses on the research and development needs and priorities in the areas of coal resource and reserve assessments, coal mining and processing, transportation of coal and coal products, and coal utilization.
Download or read book Reducing Water Freshwater Consumption at Coal fired Power Plants written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal-fired power plants consume huge quantities of water, and in some water-stressed areas, power plants compete with other users for limited supplies. Extensive use of coal to generate electricity is projected to continue for many years. Faced with increasing power demands and questionable future supplies, industries and governments are seeking ways to reduce freshwater consumption at coal-fired power plants. As the United States investigates various freshwater savings approaches (e.g., the use of alternative water sources), other countries are also researching and implementing approaches to address similar - and in many cases, more challenging - water supply and demand issues. Information about these non-U.S. approaches can be used to help direct near- and mid-term water-consumption research and development (R & D) activities in the United States. This report summarizes the research, development, and deployment (RD & D) status of several approaches used for reducing freshwater consumption by coal-fired power plants in other countries, many of which could be applied, or applied more aggressively, at coal-fired power plants in the United States. Information contained in this report is derived from literature and Internet searches, in some cases supplemented by communication with the researchers, authors, or equipment providers. Because there are few technical, peer-reviewed articles on this topic, much of the information in this report comes from the trade press and other non-peer-reviewed references. Reducing freshwater consumption at coal-fired power plants can occur directly or indirectly. Direct approaches are aimed specifically at reducing water consumption, and they include dry cooling, dry bottom ash handling, low-water-consuming emissions-control technologies, water metering and monitoring, reclaiming water from in-plant operations (e.g., recovery of cooling tower water for boiler makeup water, reclaiming water from flue gas desulfurization [FGD] systems), and desalination. Some of the direct approaches, such as dry air cooling, desalination, and recovery of cooling tower water for boiler makeup water, are costly and are deployed primarily in countries with severe water shortages, such as China, Australia, and South Africa. Table 1 shows drivers and approaches for reducing freshwater consumption in several countries outside the United States. Indirect approaches reduce water consumption while meeting other objectives, such as improving plant efficiency. Plants with higher efficiencies use less energy to produce electricity, and because the greater the energy production, the greater the cooling water needs, increased efficiency will help reduce water consumption. Approaches for improving efficiency (and for indirectly reducing water consumption) include increasing the operating steam parameters (temperature and pressure); using more efficient coal-fired technologies such as cogeneration, IGCC, and direct firing of gas turbines with coal; replacing or retrofitting existing inefficient plants to make them more efficient; installing high-performance monitoring and process controls; and coal drying. The motivations for increasing power plant efficiency outside the United States (and indirectly reducing water consumption) include the following: (1) countries that agreed to reduce carbon emissions (by ratifying the Kyoto protocol) find that one of the most effective ways to do so is to improve plant efficiency; (2) countries that import fuel (e.g., Japan) need highly efficient plants to compensate for higher coal costs; (3) countries with particularly large and growing energy demands, such as China and India, need large, efficient plants; (4) countries with large supplies of low-rank coals, such as Germany, need efficient processes to use such low-energy coals. Some countries have policies that encourage or mandate reduced water consumption - either directly or indirectly. For example, the European Union encourages increased efficiency through its cogeneration directive, which requires member states to assess their national potential for cogeneration, analyze barriers to achieving the potential, and then establish support schemes to achieve the potential. China's Eleventh Five-Year Plan (2006-2010) has an energy strategy that specifies, among other things, that production should be optimized by promoting the development of large-scale, high-efficiency units, and that air-cooled technologies should be used in areas with water shortages. The United States lacks many of these drivers. There are no government requirements that mandate more efficient plants. The United States has ample supplies of relatively cheap coal, and U.S. water-short areas are not as extensive as in countries such as China, South Africa, and Australia. Often, other countries have deployed water-savings technologies to a greater degree than the United States.
Download or read book Water Requirements Availabilities Constraints and Recommended Federal Actions written by United States. Interagency Task Force on Water Resources and published by . This book was released on 1974 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is a technical analysis of the Water Resources Council prepared to determine the degree to which the water resources of the United States will be able to accommodate potential increases in energy production. The study considers the competition of energy-related water requirements with existing or anticipated future water uses for other purposes; accommodation of energy-related water requirements with other competing uses; the magnitude and extent of any water supply shortages, water quality, institutional and other water supply problems (environmental, capital investment, manpower, inter-basin transfer) that may restrict or prevent selected future condition energy development scenarios from being implemented; water-related Federal actions required to overcome problems and constraints of the nature described above; the requirements which need to be placed on hydroelectric power generation capability to assist in meeting the Nation's energy needs.
Download or read book The Role of Environmental NGOs Russian Challenges American Lessons written by National Research Council and published by National Academies Press. This book was released on 2002-01-08 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: An NRC committee was established to work with a Russian counterpart group in conducting a workshop in Moscow on the effectiveness of Russian environmental NGOs in environmental decision-making and prepared proceedings of this workshop, highlighting the successes and difficulties faced by NGOs in Russia and the United States.
Download or read book The Direct Use of Coal written by United States. Congress. Office of Technology Assessment and published by Grand River Publishing. This book was released on 1979 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Underground Coal Mining on Ground Water in the Eastern United States written by Jeffrey P. Sgambat and published by . This book was released on 1980 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Management in China s Power Sector written by Xiawei Liao and published by Routledge. This book was released on 2020-11-04 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines water resource management in China’s electric power sector and the implications for energy provision in the face of an emerging national water crisis and global climate change. Over 75% of China’s current electricity comes from coal. Coal-fired power plants are reliant on water, with plants using significant volumes of water every year, yet water resources are unevenly distributed. In the face of serious environmental concerns and increasing electricity demand, this book examines the environmental impacts that coal power plants have on water resources and the impact water availability has on the electricity sector in a country with a significant number of water-scarce provinces and a large number of power plants located on inland waterways. It discusses the water impacts and constraints for transforming the electric power sector away from coal to renewable energy sources, such as hydropower and concentrated solar power. The book adopts a mix-method approach, combining a plant-level quantitative analysis on water impacts and dependencies in China’s electricity sector and a qualitative analysis of relevant institutions in both sectors. By reviewing policy and institution cases in China’s water and electricity sectors, the book provides important recommendations calling for coordinated institutions to shift away from the current paradigm where water and electricity are governed independently. Enriching the water-energy nexus literature, this book will be of great interest to students and scholars working on water resource management, energy industries and Chinese environmental policy, as well as policymakers and practitioners in those fields.
Download or read book Water Quality Impacts of Increased Coal Utilization written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential cumulative water quality impacts of expanded future coal use in the United States was investigated under the National Energy Plan (NEP). The NEP calls for nearly doubling of coal production and use over the next ten years. A surface water quality model was developed to estimate regional water quality impacts. The quantity of pollutants expected to be discharged as a result of coal extraction, coal-fired steam electric power generation, and industrial coal use was characterized in detail for individual sources with specific control requirements that take into account regional differences. From the pollutant loadings, the model calculates the incremental impacts based on dilution capacity of streams. It is concluded that, although water quality impacts from industrial coal use are expected to be greatly reduced due to the enactment of recent environmental laws, intense development of coal mining and coal-burning facilities may cause water quality problems in a few areas, notably the Upper Ohio River Basin, the Northern Great Plains, and the Upper Colorado River Basin. Judicious siting of coal mines and coal-burning facilities is needed to avoid adverse water quality impacts in areas where stream assimilative capacity is limited. Improved mine-sealing techniques for reducing acid mine drainage from underground mines in the East are also required. Additional critical water quality issues demanding close attention are: (1) leaching and migration of trace elements contained in uncombusted coal residuals; (2) acidification of water resources resulting from increased emissions and deposition of sulfur dioxide and nitrogen oxide; and (3) local and regional water quality problems resulting from reduced surface water dilution capacity due to increased water consumption.
Download or read book Research Report written by University of Kentucky. Water Resources Institute and published by . This book was released on 1976 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific Investigations Report written by Sharon E. Kroening and published by . This book was released on 2004 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study on the Optimal Allocation of Water Resources Systems and the Comprehensive Utilization of Water Resources in Arid Semiarid Multiple Mining Areas written by Shuning Dong and published by Springer. This book was released on 2016-04-22 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arid-semiarid regions have suffered from sharp conflicts among water resource utilization, mining, and the environmental protection. Sustainable development in these regions requires a close coordination between economy, society and the environment. Based on systematic hydrogeological investigations, laboratory and in-situ tests, and application of innovative methodologies including theoretical analysis modeling and prediction to study water resource distribution (including surface water, groundwater, mine water and coal mine domestic water) in mining areas, this dissertation provides detailed analysis of the current situation and trend of water uses in domestic supply, agriculture and industry. It evaluates the status development and utilization, evolution trend, exploitation and utilization potential of water resources in Shen-Dong Coal Mine area, one of China’s extra-large coal bases. Incorporated with the long and intermediate terms' development strategies of this area, the dissertation lays out a scientific allocation scheme of water resources in different hydrological years and proposes a planning mode of water resources development and utilization and a technical scheme for comprehensive water resources utilization to provide technical supports for the optimal allocation, rational exploitation, comprehensive utilization and scientific management of water resources. This dissertation is one of the best in Chang’an University because of the volume of reliable data, defensible scientific analysis, and world significance of the research results.
Download or read book Management and Effects of Coalbed Methane Produced Water in the Western United States written by National Research Council and published by National Academies Press. This book was released on 2010-10-15 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: In some coalbeds, naturally occurring water pressure holds methane-the main component of natural gas-fixed to coal surfaces and within the coal. In a coalbed methane (CBM) well, pumping water from the coalbeds lowers this pressure, facilitating the release of methane from the coal for extraction and use as an energy source. Water pumped from coalbeds during this process-CBM 'produced water'-is managed through some combination of treatment, disposal, storage, or use, subject to compliance with federal and state regulations. CBM produced water management can be challenging for regulatory agencies, CBM well operators, water treatment companies, policy makers, landowners, and the public because of differences in the quality and quantity of produced water; available infrastructure; costs to treat, store, and transport produced water; and states' legal consideration of water and produced water. Some states consider produced water as waste, whereas others consider it a beneficial byproduct of methane production. Thus, although current technologies allow CBM produced water to be treated to any desired water quality, the majority of CBM produced water is presently being disposed of at least cost rather than put to beneficial use. This book specifically examines the Powder River, San Juan, Raton, Piceance, and Uinta CBM basins in the states of Montana, Wyoming, Colorado, New Mexico, and Utah. The conclusions and recommendations identify gaps in data and information, potential beneficial uses of CBM produced water and associated costs, and challenges in the existing regulatory framework.
Download or read book The United Nations World Water Development Report N 5 2014 written by UNESCO and published by UNESCO. This book was released on 2014-03-21 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: The WWDR 2014 on Water and Energy is now an annual and thematic report with a focus on different strategic water issues each year. It is shorter in the order of 100 pages with a standardized structure and data and case studies annexes related to the theme. The WWDR 2014 will be launched during the main World Water Day celebrations in Tokyo, Japan on 21 March 2014. Water and energy are closely interconnected and highly interdependent. Trade-offs need to be managed to limit negative impacts and foster opportunities for synergy. Water and energy have crucial impacts on poverty alleviation both directly, as a number of the Millennium Development Goals depend on major improvements in access to water, sanitation, power and energy sources, and indirectly, as water and energy can be binding constraints on economic growth the ultimate hope for widespread poverty reduction. This fifth edition of the United Nations World Water Development Report (WWDR 2014) seeks to inform decision-makers
Download or read book Environmental Engineering for the 21st Century written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-03-08 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental engineers support the well-being of people and the planet in areas where the two intersect. Over the decades the field has improved countless lives through innovative systems for delivering water, treating waste, and preventing and remediating pollution in air, water, and soil. These achievements are a testament to the multidisciplinary, pragmatic, systems-oriented approach that characterizes environmental engineering. Environmental Engineering for the 21st Century: Addressing Grand Challenges outlines the crucial role for environmental engineers in this period of dramatic growth and change. The report identifies five pressing challenges of the 21st century that environmental engineers are uniquely poised to help advance: sustainably supply food, water, and energy; curb climate change and adapt to its impacts; design a future without pollution and waste; create efficient, healthy, resilient cities; and foster informed decisions and actions.
Download or read book Siting Potential for Coal Gasification Plants in the United States written by Alec E. Lindquist and published by . This book was released on 1977 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impacts of Coal Mining Utilization written by M.J. Chadwick and published by Elsevier. This book was released on 2013-10-22 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: As coal is considered as a substitute for other fuels, more serious attention is being given to the environmental impacts of the whole coal fuel cycle: mining, transport, storage, combustion and conversion. This volume presents an up-to-date account of these environmental impacts and the recent developments to combat and control them. A feature of the book is the way in which it discusses not only the experience and developments in North America and Western Europe but also presents much information made available for this study on the developments in the socialist countries of Eastern Europe.
