9,671 research outputs found
The enviornmental assessment of a contemporary coal mining system
A contemporary underground coal mine in eastern Kentucky was assessed in order to determine potential off-site and on-site environmental impacts associated with the mining system in the given environmental setting. A 4 section, continuous room and pillor mine plan was developed for an appropriate site in eastern Kentucky. Potential environmental impacts were identified, and mitigation costs determined. The major potential environmental impacts were determined to be: acid water drainage from the mine and refuse site, uneven subsidence of the surface as a result of mining activity, and alteration of ground water aquifers in the subsidence zone. In the specific case examined, the costs of environmental impact mitigation to levels prescribed by regulations would not exceed $1/ton of coal mined, and post mining land values would not be affected
A methodology for the environmental assessment of advanced coal extraction systems
Procedures developed to identify and assess potential environment impacts of advanced mining technology as it moves from a generic concept to a more systems definition are described. Two levels of assessment are defined in terms of the design stage of the technology being evaluated. The first level of analysis is appropriate to a conceptual design. At this level it is assumed that each mining process has known and potential environmental impacts that are generic to each mining activity. By using this assumption, potential environmental impacts can be identified for new mining systems. When two or more systems have been assessed, they can be evaluated comparing potential environmental impacts. At the preliminary stage of design, a systems performance can be assessed again with more precision. At this level of systems definition, potential environmental impacts can be analyzed and their significane determined in a manner to facilitate comparisons between systems. At each level of analysis, suggestions calculated to help the designer mitigate potentially harmful impacts are provided
Application of EREP imagery to fracture-related mine safety hazards in coal mining and mining-environmental problems in Indiana
The author has identified the following significant results. This investigation evaluated the applicability of a variety of sensor types, formats, and resolution capabilities to the study of both fuel and nonfuel mined lands. The image reinforcement provided by stereo viewing of the EREP images proved useful for identifying lineaments and for mined lands mapping. Skylab S190B color and color infrared transparencies were the most useful EREP imagery. New information on lineament and fracture patterns in the bedrock of Indiana and Illinois extracted from analysis of the Skylab imagery has contributed to furthering the geological understanding of this portion of the Illinois basin
Ecomining as a pattern of integrated approach towards sustainable mining
This paper briefly describes the Educational Project “EcoMining: Development of Integrated PhD
Program for Sustainable Mining & Environmental Activities” (2019–2022), which is being implemented
between Dnipro University of Technology (DUT, Ukraine) and Technical University Bergakademie
Freiberg (TU BAF, Germany) under support of German Academic Exchange Service (DAAD)
Application of LANDSAT-2 data to the implementation and enforcement of the Pennsylvania Surface Mining Conservation and Reclamation Act
The author has identified the following significant results. Evaluation of LANDSAT imagery indicates severe limitations in its utility for surface mine land studies. Image stripping resulting from unequal detector response on satellite degrades the image quality to the extent that images of scales larger than 1:125,000 are of limited value for manual interpretation. Computer processing of LANDSAT data to improve image quality is essential; the removal of scanline stripping and enhancement of mine land reflectance data combined with color composite printing permits useful photographic enlargements to approximately 1:60,000
Assessment of mining activities with respect to the environmental protection
This paper deals with the impact of mining on the environment. Coal mining is still among the most widespread and most intense mining activity, which disturbs the landscape around us bringing regional environmental, economic and aesthetic problems. However, for many countries in the world, including the Czech Republic, deposits of raw materials play an important role, especially for purposes of producing electricity and thermal energy. At the same time, growing emphasis laid on the environmental protection can be observed worldwide. To meet the increasing ecological demands, it is reasonable to consider the most significant aspects of mining activities from the environmental point of view, as well as to consider the possibilities of the abandoned mines utilization as possible waste dumps. Parts of this problem consist in: the monitoring, environmental impacts assessment of exploration and mining activities and waste disposal mining, which may significantly contribute to the environmental protection in the future. Several parameters that can significantly affect the usability of the waste disposal mining, such as geological structure, hydro-geological conditions, material composition and physical and mechanical properties of rocks are discussed in detail in this work.
The article also includes a practical example of Environmental Impact Assessment process for the particular activity of OKD stock company, which is the only producer of hard coal (bituminous coal) in the Czech Republic. Its coal is mined in the southern part of the Upper Silesian Coal Basin - in the Ostrava-Karvina coal district.
KeywordsWeb of Science221937
Determine utility of ERTS-1 to detect and monitor area strip mining and reclamation
The author has identified the following significant results. Computer techniques were applied to process ERTS tapes acquired over coal mining operations in southeastern Ohio on 21 August 1972 and 3 September 1973. ERTS products obtained included geometrically correct map overlays showing stripped earth, partially reclaimed earth, water, and natural vegetation. Computer-generated tables listing the area covered by each land-water category in square kilometers and acres were produced. By comparing these mapping products, the study demonstrates the capability of ERTS to monitor changes in the extent of stripping, success of reclamation, and the secondary effects of mining on the environment
Alaska mining and water quality
The Institute of Water Resources has sought financial assistance
for some time in an attempt to initiate research relative to the impact
of mining on water quality. Attempts were made as early as 1971 by Dr.
Timothy Tilsworth and later by Dr. Donald Cook and Dr. Sage Murphy.
These investigators anticipated growth in placer gold mining and the
development of natural resources in Alaska during a period of national
and environmental concern. The subsequent energy "crisis," the major
increase in the price of gold on the world market, and dwindling nonrenewable
resource supplies have resulted in large-scale mineral
exploration in Alaska. This exploration, coupled with development of
the trans-Alaska oil pipeline, has attracted considerable capital for
potential investment and development in Alaska. Expected industrial
growth has already started and major new projects are "just around the
corner."
Yet, as of 1976, no major research effort has occurred to determine
the extent of or potential for water quality impacts from mining operations
in Alaska. Recently a series of interdisciplinary research projects
have been completed in Canada; however, the application of Canadian data
to Alaskan problems is uncertain. Although, state and federal government
agencies have been advised and are aware of this potential problem
and lack of baseline data they have not sought out new information or
rational solutions. Even now, with deadlines of Public Law 92-500 at
hand, some regulatory agencies give the impression of attempting to
ignore the situation. Interim limitations are proposed and permits
are issued with no discernible rationale or basis. Data have not been
obtained relative to the Alaskan mining operations and thus are not
available for use in seeking solutions compatible with mining and environmental protection. Numbers appear to have been arbitrarily
assigned to permits and water quality standards. When permits are
issued, self-monitoring requirements are negligible or nonexistent.
Nor have regulatory agencies demonstrated the ability or inclination
to monitor mining operations or enforce permits and water quality
standards.
It was hoped that the project would bring together miners, environmentalists, and regulators in a cooperative effort to identify the
problems and seek solutions. The investigators recognized the political
sensitivity of the subject matter but proceeded optimistically.
Relatively good cooperation, though not total, occurred early in the
project. In April 1976, a symposium was held to exchange ideas and
determine the state-of-the-art. Although the symposium had good
attendance and an exchange of information occurred, the symposium
itself was somewhat of a disappointment. With few exceptions, the
participants aligned on one side or the other in preconceived fixed
positions. Some even chose not to attend and were therefore able to
avoid the issues. Little hard data was presented.
Optimistically, some of the miners, environmentalists, and
regulators are prepared to resolve their differences. This report,
hopefully, will be of benefit to them. It is our experience that
miners and environmentalists share a love of the land that is uniquely
Alaska. We feel that technology is available for application to this
problem for those who care about doing the job right in the "last
frontier." Whether or not it will be effectively applied to protect
Alaska's water resources is a question which remains unanswered.The work upon which this report is based was supported in part by
funds provided by the United States Department of the Interior, Office
of Water Resources Research Act of 1964, Public Law 88-379, as amended
(Project A-055-ALAS)
Utilizing Skylab data in on-going resources management programs in the state of Ohio
The author has identified the following significant results. The use of Skylab imagery for total area woodland surveys was found to be more accurate and cheaper than conventional surveys using aerial photo-plot techniques. Machine-aided (primarily density slicing) analyses of Skylab 190A and 190B color and infrared color photography demonstrated the feasibility of using such data for differentiating major timber classes including pines, hardwoods, mixed, cut, and brushland providing such analyses are made at scales of 1:24,000 and larger. Manual and machine-assisted image analysis indicated that spectral and spatial capabilities of Skylab EREP photography are adequate to distinguish most parameters of current, coal surface mining concern associated with: (1) active mining, (2) orphan lands, (3) reclaimed lands, and (4) active reclamation. Excellent results were achieved when comparing Skylab and aerial photographic interpretations of detailed surface mining features. Skylab photographs when combined with other data bases (e.g., census, agricultural land productivity, and transportation networks), provide a comprehensive, meaningful, and integrated view of major elements involved in the urbanization/encroachment process
The relevance of ERTS-1 data to the state of Ohio
There are no author-identified significant results in this report
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