Long Term Management Of The Environmental Effects Of Tailings Dams
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Long Term Management Of The Environmental Effects Of Tailings Dams
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Author : Jennifer A. Boshier
language : en
Publisher:
Release Date : 1997
Long Term Management Of The Environmental Effects Of Tailings Dams written by Jennifer A. Boshier and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Gold mines and mining categories.
Long Term Management Of The Environmental Effects Of Tailings Dams
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Author :
language : en
Publisher:
Release Date : 1997
Long Term Management Of The Environmental Effects Of Tailings Dams written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Gold mines and mining categories.
Case Studies On Tailings Management
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Author : International Council on Metals and the Environment
language : en
Publisher: UNEP/Earthprint
Release Date : 1998
Case Studies On Tailings Management written by International Council on Metals and the Environment and has been published by UNEP/Earthprint this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Barrages categories.
To enhance understanding of tailings management & demonstrate how the mining industry is managing the risks associated with tailings disposal, this publication offers a collection of 21 case studies prepared by technical experts throughout the industry in many parts of the world. Fully illustrated, it also provides an overview describing tailings, the main concerns & issues relating to them, & how they are managed by industry.
The Environmental Impact Of Seepage From Gold Mine Tailings Dams Near Johannesburg South Africa
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Author : Thorsten Rosner
language : en
Publisher:
Release Date : 2013
The Environmental Impact Of Seepage From Gold Mine Tailings Dams Near Johannesburg South Africa written by Thorsten Rosner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Gold mining in South Africa resulted in vast volumes of waste material, mainly in the form of tailings material. Poor management of most of the tailings dams resulted in the release of acid mine drainage that in some cases caused soil degradation and water contamination underneath and around these sites. Although many tailings dams have been partially or completely reclaimed, their contaminated footprints pose a serious threat to the water quality of the underlying aquifers (e.g. dolomitic aquifers). This study investigated the geotechnical, mineralogical and geochemical parameters of eleven selected partially or completely reclaimed sites situated near Johannesburg. The main objective of the field and laboratory experiments was to assess the pathway of contaminant migration resulting from acid mine drainage from tailings materials through the unsaturated zone into the groundwater system. Comparing extractable contaminant concentrations with a soil standard from literature represents the environmental short-term impact. In contrast, total element concentrations in the soil compared with background values were used to describe the long-term impact or worst-case scenario. Extraction tests have shown that only a minor portion of contaminants (i.e. Co, Ni and Zn) is mobile in acidic soils. This implies that plant growth could be limited because of phytotoxic elements occurring in the topsoils, complicating rehabilitation measures. In addition, the soils often contain anomalous trace element concentrations, providing a pool for future contamination. Buffer minerals will eventually be depleted and the subsequent acidification of the subsoil, could result in the remobilization of contaminants from the subsoil into the groundwater system in the long term. It is important to understand the parameters, which control the balance between retention and mobility of contaminants in soils. Therefore a risk assessment approach would be required for all tailings dams and reclaimed sites to identify those sites, which need rehabilitation and to define the type and extent of remedial measures. Minimum rehabilitation requirements at reclaimed sites could consist of soil management measures such as liming and the addition of organic material and fertilisers to minimise the contaminant migration from the topsoil into the subsoil and groundwater as well as to provide suitable conditions for vegetation growth and future land use. Removal of remaining tailings and excavation of those portions of the soil, which are excessively contaminated, are necessary. Tailings dams which pose a high risk to the environment would require a well-engineered soil and vegetation cover to limit rainfall infiltration into the impoundment, and thus to reduce the oxidation of sulphide-bearing minerals such as pyrite. Long-term monitoring is an absolute prerequisite to ensure the success of rehabilitation, and therefore the safe use of land and water.
Draft Environmental Impact Statement Molycorp Guadalupe Mountain Tailings Disposal Facility
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Author :
language : en
Publisher:
Release Date : 1988
Draft Environmental Impact Statement Molycorp Guadalupe Mountain Tailings Disposal Facility written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Government publications categories.
Proceedings Of The Workshop On Future Directions In Tailings Environmental Management
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Author : C. J. Asher
language : en
Publisher:
Release Date : 1999
Proceedings Of The Workshop On Future Directions In Tailings Environmental Management written by C. J. Asher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Science categories.
Tailings Dam Failure
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Author : Robert C. Lo
language : en
Publisher: Springer
Release Date : 2023-01-15
Tailings Dam Failure written by Robert C. Lo and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-15 with Science categories.
Mining has evolved in the 21st century into an indispensable industry that provides a variety of mineral products needed to sustain a modern society. To achieve efficiency, it has also grown into an integrated enterprise of enormous size, wielding substantial economic power. Tailings is essentially a fine-particle mine-waste byproduct. Its management has gone through major transformations in the last century. In early years tailings was disposed of out of sight and literally out of mind. However, due to the physical and chemical characteristics of tailings, this laissez-faire approach in dealing with its disposal led to significant environmental degradation such as pollution and blockage of watercourses, etc. With the rising environmental protection movement, the mining operation is under increasing regulatory constraints and governmental monitoring. Modern tailings dams have become major hydraulic structures designed, constructed, monitored until they are properly closed and reclaimed after the completion of mining tenure. These dams are often higher than 100 m, with a storage capacity of over hundreds of million cubic metres, serving a vital industrial function for the public. Unfortunately, when such a dam fails, it unleashes enormous destructive power causing inundation of water and tailings mud over the downstream area resulting in fatalities and lasting environmental degradation. This book presents a condensed monograph on forensic investigations of select case histories of failed tailings dams. The selection tends to emphasize recent cases that have representative characteristics including those affecting the evolution of the current practice of tailings dam engineering. Efforts are made to facilitate readers’ understanding of important factors involved by using plain language. Technical terms are clearly explained before their usage. The objective of the monograph is to provide a neutral reference on tailings dam failures for all stakeholders. The author hopes ongoing dialogues by all stakeholders on the important topics of dam safety will raise the safety standard of tailings dams to a new level compatible with public expectations of the sustainable mining industry.
Mine Wastes
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Author : Bernd Lottermoser
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-18
Mine Wastes written by Bernd Lottermoser and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-18 with Science categories.
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.
Reclaiming The Future
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Author : Jane Kelsey
language : en
Publisher: Bridget Williams Books
Release Date : 2015-12-21
Reclaiming The Future written by Jane Kelsey and has been published by Bridget Williams Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-21 with Political Science categories.
Jane Kelsey’s exploration of the effects of globalisation on the New Zealand economy was eye-opening when published in 1999. She offered a trenchantly expressed response to the neoliberal slogan of the time, ‘There is no alternative.’ Kelsey’s analysis remains a critical yardstick for current policies and an alternative perspective on the development of global relationships. The recent global financial meltdown and subsequent recession give new relevance to her questions about globalisation’s consequences for sovereignty and democracy. Kelsey continues to offer a bold voice of challenge and critique, pointing the way for open-eyed engagement with the economic realities of the future.
Mineral Processing Technology
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Author : B. A. Wills
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Mineral Processing Technology written by B. A. Wills and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
Mineral Processing Technology, Third Edition: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery details the fundamentals of contemporary ore processing-techniques. The title first introduces the basics of ore-processing, and then proceeds to tackling technical topics in the subsequent chapters. The text covers methods and procedures in ore handling, industrial screening, and ore sorting. The selection also deals with ore-processing equipment, such as crushers and grinding mills. The book will be of great use to students and professionals of disciplines involved in mining industry.