Characterising the Acid Mine Drainage Potential of Fine Coal Wastes PDF Download
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Author: Lerato Olga Kotelo Publisher: ISBN: Category : Acid mine drainage Languages : en Pages : 302
Book Description
Acid mine drainage (AMD) is one of the major environmental challenges facing the South African mining sector. Acid mine drainage has received significant public attention in recent years. South Africa's long mining history has led to a growing concern that coal-related AMD from these mines (both operational and defunct) will continue for centuries to come. Pyrite bearing fine waste, generated during coal preparation and beneficiation, is thought to carry a significant amount of AMD pollution risk. Coal-related AMD generation has not been afforded the same exposure as AMD generation from high sulphide minerals such as gold and copper ores. This is exacerbated by the growing concern over water quality degradation in the Mpumalanga region of South Africa. The development of integrated solutions to address the management of coal-related AMD requires an understanding of the principle causes behind coal-related AMD. To date, most of the prediction methods described in literature have been derived for the prediction of AMD in metal bearing ores. Furthermore, some of these methods are based on assumptions and do not take into consideration the various sulphur species present. Additionally, some of these methods have limited applicability to coal due to the high total organic carbon content (TOC) of the material. This research project attempts to address these short comings and uncertainties by developing a systematic and meaningful framework for the characterisation of South African coal and coal waste. The research project contributes to the knowledge of coal-related AMD with particular emphasis on the characterisation methods responsible for sulphur speciation and mineralogy for coal. The approach entails carrying out a case study assessment aimed at empirically assessing a coal tailings sample according to: particle size distribution, textural reference, mineralogical characteristics, and how the aforementioned factors influence the acid potential in coal.
Author: Lerato Olga Kotelo Publisher: ISBN: Category : Acid mine drainage Languages : en Pages : 302
Book Description
Acid mine drainage (AMD) is one of the major environmental challenges facing the South African mining sector. Acid mine drainage has received significant public attention in recent years. South Africa's long mining history has led to a growing concern that coal-related AMD from these mines (both operational and defunct) will continue for centuries to come. Pyrite bearing fine waste, generated during coal preparation and beneficiation, is thought to carry a significant amount of AMD pollution risk. Coal-related AMD generation has not been afforded the same exposure as AMD generation from high sulphide minerals such as gold and copper ores. This is exacerbated by the growing concern over water quality degradation in the Mpumalanga region of South Africa. The development of integrated solutions to address the management of coal-related AMD requires an understanding of the principle causes behind coal-related AMD. To date, most of the prediction methods described in literature have been derived for the prediction of AMD in metal bearing ores. Furthermore, some of these methods are based on assumptions and do not take into consideration the various sulphur species present. Additionally, some of these methods have limited applicability to coal due to the high total organic carbon content (TOC) of the material. This research project attempts to address these short comings and uncertainties by developing a systematic and meaningful framework for the characterisation of South African coal and coal waste. The research project contributes to the knowledge of coal-related AMD with particular emphasis on the characterisation methods responsible for sulphur speciation and mineralogy for coal. The approach entails carrying out a case study assessment aimed at empirically assessing a coal tailings sample according to: particle size distribution, textural reference, mineralogical characteristics, and how the aforementioned factors influence the acid potential in coal.
Author: Bernd Lottermoser Publisher: Springer Science & Business Media ISBN: 3662051338 Category : Science Languages : en Pages : 290
Book Description
Today's best practice in environmental mine-waste management requires a thorough understanding of the wastes produced. The knowledge of mine wastes represents a new interdisciplinary science and this book provides an introductory, descriptive and analytic overview of the wastes produced in the mineral industry. It describes the characterization, prediction, monitoring, disposal and treatment as well as environmental impacts. Intended for undergraduate courses, it systematically builds the reader’s understanding and knowledge of the wastes produced, their physical and chemical characteristics, and how to deal responsibly with them on a short and long-term basis. The text employs 22 case studies spanning the world’s mineral industry that elucidate best practice and specific challenges in mine-waste management and site rehabilitation.
Author: Thomas Heise Publisher: GRIN Verlag ISBN: 3640631587 Category : Science Languages : en Pages : 197
Book Description
Bachelor Thesis from the year 2010 in the subject Geography / Earth Science - Geology, Mineralogy, Soil Science, grade: 1,0, , course: Montanuniversität Leoben, language: English, abstract: Water is a natural resource of high significance for human beings, fauna and flora. Therefore, the protection of water resources is one of the highest aims of each industrial site. The mining sector and its subsectors have a lot of applications for water, also causing a high potential to interfere with water systems. Mineral extraction, mineral resource storages, mineral processing and mine waste storage form important potential pollutant emitters. The weathering of sulphidic minerals cause the most severe mine-water-related problems, because it involves a decrease in the pH level as well as an increase in dissolved total solids, especially metal concentrations. This acid mine waters are categorized as acid mine drainage. The drainage of acidic water represents the biggest conflict between mining and environment in the world. This thesis deals with the characterization of waterbodies impacted by acid mine drainage. A discussion of the fundamental processes forms the basis of this paper. The classification of mine drainage, the weathering of pyrite and potential pollution sources are discussed in detail. However, impacts of acid mine drainage, drinking-water-specific values and legal and political aspects are mentioned as well. Based on this theoretical part, various international, especially European case studies will be reviewed. Each of these examples includes a brief introduction to the general mine-water related situation and with a focus on a specific development of the site, thus ensuring to illustrate the complexity of this environmental concern. Finally, a conclusion is drawn from the discussion of the case studies, complementing the theory part.
Author: James A. Jacobs Publisher: John Wiley & Sons ISBN: 1118749243 Category : Technology & Engineering Languages : en Pages : 502
Book Description
Provides the tools needed to analyze and solve acid drainage problems Featuring contributions from leading experts in science and engineering, this book explores the complex biogeochemistry of acid mine drainage, rock drainage, and acid sulfate soils. It describes how to predict, prevent, and remediate the environmental impact of acid drainage and the oxidation of sulfides, offering the latest sampling and analytical methods. Moreover, readers will discover new approaches for recovering valuable resources from acid mine drainage, including bioleaching. Acid Mine Drainage, Rock Drainage, and Acid Sulfate Soils reviews the most current findings in the field, offering new insights into the underlying causes as well as new tools to minimize the harm of acid drainage: Part I: Causes of Acid Mine Drainage, Rock Drainage and Sulfate Soils focuses on the biogeochemistry of acid drainage in different environments. Part II: Assessment of Acid Mine Drainage, Rock Drainage and Sulfate Soils covers stream characterization, aquatic and biological sampling, evaluation of aquatic resources, and some unusual aspects of sulfide oxidation. Part III: Prediction and Prevention of Acid Drainage discusses acid-base accounting, kinetic testing, block modeling, petrology, and mineralogy studies. It also explains relevant policy and regulations. Part IV: Remediation of Acid Drainage, Rock Drainage and Sulfate Soils examines both passive and active cleanup methods to remediate acid drainage. Case studies from a variety of geologic settings highlight various approaches to analyzing and solving acid drainage problems. Replete with helpful appendices and an extensive list of web resources, Acid Mine Drainage, Rock Drainage, and Acid Sulfate Soils is recommended for mining engineers and scientists, regulatory officials, environmental scientists, land developers, and students.
Author: Lerato Olga Kotelo
Author: Lerato Olga Kotelo
Author: Bernd Lottermoser
Author: Z. V. Kosowski
Author: 
Author: Thomas Heise
Author: Bituminous Coal Research, Inc
Author: John J. Renton
Author: James A. Jacobs
Author: Richard M. Smith
Author: Lewis Van Carpenter