Download or read book The Environmental Geochemistry of Sulfide Mine wastes written by David W. Blowes and published by . This book was released on 1994 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Environmental Geochemistry of Sulfide Mine wastes written by and published by . This book was released on 1994 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Environmental geochemistry of sulfide mine wastes written by Mineralogical Association of Canada and published by . This book was released on 1994 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Aspects of Mine Wastes written by J. L. Jambor and published by . This book was released on 2003 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Environmental Geochemistry of Sulfide Mine Waste written by D. W. Blowes and published by . This book was released on 1994 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Short Course Handbook on Environmental Geochemistry of Sulfide Mine wastes written by David W. Blowes and published by . This book was released on 1994 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Environmental Geochemistry of Sulfide Mine wastes written by and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Geochemistry of Sulfide Oxidation written by Charles N. Alpers and published by Wiley-VCH. This book was released on 1994-02-15 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: From a symposium at the 204th National Meeting of the American Chemical Society, Washington, D.C., August 1992. The research in this area is motivated by the locally severe environmental impacts and toxicity associated with the products of sulfide oxidation. Thirty- nine multidisciplinary papers address various aspects of sulfide oxidation: laboratory studies of kinetics; numerical modeling in tailings, waste rock, and in situ deposits; solubility and sorption control in formation of sulfide-oxidation products; transport products in surface waters, and in sediments; effects on ground-water geochemistry; processes in wetlands and the oceans; analytical methods; and remediation and prevention of environmental effects. Annotation copyright by Book News, Inc., Portland, OR
Download or read book Environmental Geochemistry written by B. Sherwood Lollar and published by Elsevier. This book was released on 2005-05-21 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Treatise on Geochemistry is the first work providing a comprehensive, integrated summary of the present state of geochemistry. It deals with all the major subjects in the field, ranging from the chemistry of the solar system to environmental geochemistry. The Treatise on Geochemistry has drawn on the expertise of outstanding scientists throughout the world, creating the reference work in geochemistry for the next decade. Each volume consists of fifteen to twenty-five chapters written by recognized authorities in their fields, and chosen by the Volume Editors in consultation with the Executive Editors. Particular emphasis has been placed on integrating the subject matter of the individual chapters and volumes. Elsevier also offers the Treatise on Geochemistry in electronic format via the online platform ScienceDirect, the most comprehensive database of academic research on the Internet today, enhanced by a suite of sophisticated linking, searching and retrieval tools.
Download or read book The Environmental Geochemistry of Sulfide Mineral Wastes written by Mineralogical Association of Canada. Short course and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mine Waste Hydrogeochemistry written by D. Kirk Nordstrom and published by Elsevier. This book was released on 2021-06-01 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mine Waste Hydrogeochemistry covers all the fundamental properties and principles associated with metal mining and coal mining wastes, their environmental consequences, and their remediation. It provides a solid scientific basis for planning and managing solid and liquid wastes from mining activities which will inform students, researchers, engineers, and mine managers. The degradation of air quality, water quality, and soil and sediment quality from mining activities involves complex processes involving physics, chemistry, microbiology, fluid dynamics, and mineralogy and mineral processing. This subject matter is complex and requires technical skill in laboratory work, field work, and theoretical calculations. This book provides the most up-to-date synthesis of the numerous papers and studies on this subject available in one book for students, instructors, consultants, and researchers. Mine Waste Hydrogeochemistry is intended to fill that void. Covers the basic scientific principles necessary to understand mine waste contamination Includes real-world examples of remediation activities and their successes and failures Synthesizes information gained from hundreds of studies including tailings and waste piles worldwide, stream and river studies affected by mine drainage, and mineralogical characterization combined with water compositions
Download or read book Mine Wastes written by Bernd Lottermoser and published by Springer Science & Business Media. This book was released on 2010-07-09 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is not designed to be an exhaustive work on mine wastes. It aims to serve undergraduate students who wish to gain an overview and an understanding of wastes produced in the mineral industry. An introductory textbook addressing the science of such wastes is not available to students despite the importance of the mineral industry as a resource, wealth and job provider. Also, the growing imp- tance of the topics mine wastes, mine site pollution and mine site rehabilitation in universities, research organizations and industry requires a textbook suitable for undergraduate students. Until recently, undergraduate earth science courses tended to follow rather classical lines, focused on the teaching of palaeontology, cryst- lography, mineralogy, petrology, stratigraphy, sedimentology, structural geology, and ore deposit geology. However, today and in the future, earth science teachers and students also need to be familiar with other subject areas. In particular, earth science curriculums need to address land and water degradation as well as rehabili- tion issues. These topics are becoming more important to society, and an increasing number of earth science students are pursuing career paths in this sector. Mine site rehabilitation and mine waste science are examples of newly emerging disciplines. This book has arisen out of teaching mine waste science to undergraduate and graduate science students and the frustration at having no appropriate text which documents the scienti?c fundamentals of such wastes.
Download or read book The Environmental Geochemistry of Mineral Deposits written by Geoffrey S. Plumlee and published by . This book was released on 1999 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mine Wastes written by Bernd G. Lottermoser and published by Springer Science & Business Media. This book was released on 2007 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive, up-to-date overview of the accumulation of wastes at mine, including sulfidic mine wastes, mine water, tailings, cyanidation wastes of gold-silver ores, radioactive wastes of uranium ores, and wastes of phosphate and potash ores. The updated second edition includes new case studies; presents crucial aspects of mine wastes as scientific issues; reflects major developments and contemporary issues in mine waste science; additional figures; and an updated reference list.
Download or read book Geochemistry written by Tariq A. Altalhi and published by John Wiley & Sons. This book was released on 2021-03-17 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to explore basic principles, concepts and applications of geochemistry. Topics include chemical weathering, impacts on living beings and water, geochemical cycles, oxidation and redox reactions in geochemistry, isotopes, analytical techniques, medicinal, inorganic, marine, atmospheric, and environmental applications, as well as case studies. This book helps in understanding the chemical composition of the earth and its applications. It also includes beneficial effects, bottlenecks, solutions, and future directions in geochemistry.
Download or read book A Mechanistic Approach to Assessment of the Geochemical Evolution of Low Sulfide Mine waste Rock written by David Wilson and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential for mine wastes to generate elevated concentrations of solutes including metals, sulfate, and reduced pH exists wherever mine-waste rock is stockpiled at the Earth's surface representing one of the world's largest environmental problems. The assessment of the long-term geochemical evolution of mine wastes is of critical importance in the process of mine-life planning because of the potential for adverse impacts of released solutes and low pH effluent to receiving environments. The Diavik Waste Rock Project included laboratory and field experiments investigating the geochemical evolution of low-sulfide mine-waste rock at different scales. The experiments included small-scale humidity cells (0.1 m high; laboratory), medium-scale lysimeters (2 m high; field), and large-scale test piles (15 m high; field) to facilitate development of a mechanistic approach to scaling results of the laboratory experiments to make assessments regarding the geochemical evolution at the larger field experiments. This process, generally referred to scale-up, often involves the use of humidity cell experiment results coupled with empirical scale factors to make predictions about the long term geochemistry of effluent released form mine-waste stockpiles. The empirical factors used typically include parameters known to influence rates of sulfide oxidation including mineral content, particle-size distribution, temperature, moisture content, and oxygen availability. These scale-up factors often fail to account for site specific heterogeneities in physical and chemical properties that can strongly influence the prediction process. Mechanistic approaches (i.e., the use of geochemical models including reactive transport models) have the potential to include complex heterogeneities that facilitate a quantitative assessment of the long-term geochemical evolution of mine wastes. A conceptual model of the geochemical evolution of low-sulfide waste rock was developed to facilitate numerical simulations of the small-scale experiments and then was used to simulate the geochemical evolution in the larger scale field experiments. The conceptual model, based on oxidation of sulfide minerals coupled with the geochemical weathering of host minerals present in waste rock produced at the Diavik Diamond Mine (NT, Canada), was implemented using the reactive transport code MIN3P. The 1-D model was calibrated to capture the effluent concentrations from the laboratory-scale experiments then used to simulate the geochemical evolution at the larger scale field experiments, without further calibration, to assess the efficacy of the mechanistic scale-up approach. Geostatistical analyses of mineralogical and particle-size distribution samples were conducted to assess the heterogeneity of S, C, and saturated hydraulic conductivity. The results of the geostatistical analyses were used to inform spatial distributions of S, C, and saturated hydraulic conductivity as input to reactive transport simulations of the large-scale field experiment. The 2-D simulations were conducted to assess the influence of heterogeneity in S, C, and saturated hydraulic conductivity on the geochemical evolution of the waste rock. The results of the humidity cell simulations indicate that the conceptual model represents the primary geochemical processes of the low-sulfide waste rock weathering. The simulated effluent concentrations compares well with the measured solute concentrations from the humidity cells, although some divergence for specific parameters was observed. Mineral surface area, mineral content, temperature, and pH were identified as important factors controlling the geochemical evolution of the waste rock. The results of the model developed and calibrated at the humidity-cell scale suggested that the conceptual model could be representative of the DWRP waste rock weathering in general and the implemented model could be used to simulate waste rock weathering for the field scale experiments. The implementation of the conceptual model at the medium-scale field experiments involved inclusion of measured temporally dynamic temperature and infiltration to better represent the physical conditions at the field experiments. Implementation at the large-scale test pile experiments included providing spatially dynamic temperature. Inclusion of these parameters as model input facilitated completion of multi-year simulations essential to making long-term assessments of the geochemical evolution of waste rock. Scaling the humidity cell conceptual model to simulate the geochemical evolution at the field-experiment scales resulted in good visual agreement between measured and simulated concentrations and mass flux of most parameters. The pH was generally over estimated in the medium- and large-scale field simulations. Supplemental simulations indicate that calcite availability was lower for the field experiments (approximately 20% of measured content). The field experiment simulations did not rely on geochemical data for calibration; however, these simulations did rely on site-specific physical data, including mineralogy-related parameters such as volume fraction, hydrology-related parameters including hydraulic conductivity, grain-size distribution, porosity, and water-retention curve values, and environmental parameters including temperature, precipitation, and O2 concentration (the field systems were not O2 limited); to facilitate an assessment of the geochemical evolution of waste rock. The reactive transport simulations demonstrated that a comprehensive, integrated conceptual model representing the geochemical evolution of low-sulfide waste rock, implemented and calibrated at the humidity-cell scale can be applied to field-scale experiments using a small number of measurable parameters to constrain the simulations. Parameters should include mineral content, bulk mineral surface area, and particle-size distribution, water flow and infiltration characteristics as well as general climatic conditions (specifically temperature and precipitation). The reliance on readily available, measurable parameters suggests that this approach could be implemented at other sites using the appropriate site specific parameters. This mechanistic approach provides the basis for predictive scale-up. Consideration of the influence of temperature on the geochemical reactions was a major factor facilitating the scale-up of the model. The humidity cell experiments were conducted at temperatures 5 °C and 22 °C to allow calibration for the influence of temperature, which was a critical component in the scale-up process because of the varied temperatures at which surface-stored waste rock is exposed. Measurement of temperature at the field scale would be an important component of any scale-up program. The results of the geostatistical analyses indicate the spatial distributions of S, C, and saturated hydraulic conductivity in the test-pile experiments could be approximated using a log normal distribution with mean and standard deviation calculated from samples collected during test pile construction for each parameter. A lack of spatial dependence for matrix hydraulic conductivity was significant because the matrix material exerted strong control over the flow of water through the test-pile experiments. The spatial distributions of S, C, and saturated hydraulic conductivity in the test piles experiments provides a foundation from which full-scale waste-rock piles could be characterized using the geostatistical methods described. The spatial dependence of saturated hydraulic conductivity in larger piles may also depend on the influence of features which were not present in the test-pile experiments (e.g., traffic surfaces). The investigation of the influence of mineralogical and physical heterogeneity on the geochemical evolution in the Type III test-pile suggested that heterogeneous distributions of S and C mineralogy and saturated hydraulic conductivity field resulted in variations of effluent concentrations that were at times, consistent with the measured variation. Analysis of the results of the heterogeneous simulations indicate that the distribution of solute mass fluxes from the test-pile experiment for most parameters could be best approximated with a log normal probability density function.
Download or read book Environmental Geochemistry of Potentially Toxic Metals written by Frederic R. Siegel and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
