Evaluation of pre-treatment methods for gold recovery …
100 kg of calcine tailings was obtained from a tailings dump in South Africa. The tailings were blended and divided into representative aliquots through cone and quartering, followed by riffle splitting, and finally rotary splitting to obtain 500 g samples. Sample characterization. The tailings were characterized using multiple techniques to
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How mine dumps in South Africa affect the health of …
How mine dumps in South Africa affect the health of communities living nearby Published: May 2, 2018 10:15am EDT. Vusumuzi ... known as tailings, produced during the mining process. Mine dumps are ...
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Feasibility of tailings retreatment to unlock value and create
tailings dump near Giy ani, South Africa. N.K. Singo 1 and J.D. Kramers 1. Synopsis. The reprocessing of tailings resources to extract gold on an industrial scale has become common practice.
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Mine dumps in South Africa: an ownership dilemma
The South African landscape is filled with mine dumps bearing testament to South Africa's rich mining heritage. In laymen's terms the phrase 'mine dump' refers to an area where excess material containing forms of mineral(s) were left (either valuable or of no value to the miner) by the person who won the minerals from the earth in accordance with his/her right or entitlement to …
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The Toxic Landscape of Johannesburg's Gold …
More than a century of gold mining has left towering piles of bleached mine waste, known as "tailings," all over Johannesburg's landscape. Discovery of gold in the region in 1886 led to the ...
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All that glitters... Acid mine drainage: The toxic legacy of …
The name Witwatersrand, literally "White Water Ridge" in Afrikaans, isubiquitous in South Africa. The namesake ridge, often called the Rand,passes through Johannesburg. This highly erosion- resistant quartziteridge forms the north side of the Witwatersrand goldfields, a300-kilometer …
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Bioreclamation of coalmine overburden dumps—with …
Tree species like Dalbergia sissoo, Eucalyptus, Cassia seamea, Acaccia mangium and Peltaphorum were found to be the best species for bioreclamation of overburden dumps. Major environmental impacts of opencast mining are degradation of landscape and aesthetics of the area by creating huge overburden dumps and deep voids at the mining sites. These …
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Where have all the mine dumps gone? | The Heritage Portal
The early methods of gold extraction would send the tailings (discard) to sand dumps, but as time went by improved methods of extraction would create a slime that could be disposed of by pumping to a slimes dam. After 1950 slimes dams had supplanted sand dumps as the preferred method of discarding the residue from the gold plant.
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DRDGold: South Africa's largest tailings project kicks into …
DRDGold has embarked on the first phase of what will be one of the largest tailings recovery operations in South Africa. ... Phase 1 involves upgrading the Driefontein 2 plant to process tailings from the Driefontein 5 dump at a rate of between 400 000 and 600 000 tpm and depositing the residue on the Driefontein 4 tailings dam.
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Location of mine dumps tailings in South Africa.
Gold mine tailing dumps are considered to be a major cause of air pollution due to wind and dust that blows, containing complex mixtures of heavy metals and trace elements that are dangerous to ...
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Geotechnical characterisation and dump design of historic …
the spoil is c'=15 kPa and ϕ'=20°, similar to the tested strengths for the 70% fines sa mples. Subsequently, the tip head heights were reduced to 10m. This resulted in a significant improve ment
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Development and application of a methodological …
South Africa has numerous voluminous tailings dumps that will certainly require rehabilitation. The aim of this work was to develop a methodological approach for prioritization of rehabilitation of abandoned …
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Do reconstructed landforms have multifractal characteristics…
Location of Antaibao opencast coalmine (the West Dump, the Internal Dump and the South Dump). (a, b, c) Sub-areas of the dumps; (d, e, f) Topography of the dumps; (g, h, i) Vegetation of the dumps. Three dumps (i.e., the South Dump, the West Dump and the Inner Dump) were selected as the specific study areas, and their areas were 1.75 km 2, 2. ...
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Mine Dumps in South Africa: an Ownership Dilemma
The South African landscape is filled with mine dumps bearing testament to South Africa's rich mining heritage. In laymen's terms the phrase 'mine dump' refers to an area where excess material containing forms of mineral(s) were left (either valuable or of no value to the miner) by the person who won the minerals from the earth in accordance with his/her right or entitlement to …
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Mogale Tailings Retreatment Project: Kickoff set for 2024
Load-and-haul mining will be used to extract resources from the smaller North Sands and South Sands tailings dumps. The re-mined tailings will be processed in a CIL plant of similar design to the Elikhulu operation, with an additional water treatment plant that will help limit corrosion and potentially improve gold recoveries.
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Guidance Note QGN 29
Tailings form a slurry that can be placed into a TSF to confine the tailings. The term TSF refers to the overall storage facility and may include one or more tailings dams, associated pumping, decanting, monitoring and warning systems, storm water diversion and drainage channels etc. This warrants an integrated management approach.
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Maps
Maps. Active Underground Bituminous Coal Mining Application The Active Underground Bituminous Coal Mining application enables users to view and select active and historic mining activity in the Pennsylvania's bituminous coal seams including: active underground permit boundaries, longwall mining panels, longwall panel plus dates and mined out areas.
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Converting Tailings Dumps into Mineral Resources …
Extraction of valuable metals from tailings dumps (or residues or low grade stockpiles) traditionally regarded as waste, has long been researched by metallurgists. A number of developments in mineral processing technology …
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Operations
Cash generative, low-cost operations on the Eastern and Western Limbs of the Bushveld Igneous Complex, South Africa. The Sylvania Dump Operations (SDO) comprises six chrome beneficiation and PGM processing plants, treating a combination of ROM and current and historical chrome tailings at host mine-sites. ... Tailings dumps: Production capacity ...
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Feasibility of tailings retreatment to unlock value and …
This study explores the possibility of reclaiming the tailings dump of the Louis Moore Mine in the Giyani Greenstone Belt, investigates potential hazards to communities in the vicinity, and …
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Converting tailings dumps into mineral resources
Similarly, tailings dumps arising from the processing of chrome ore in the Lower Group reefs of the BC are also being retreated to recover PGEs. Several commercially profitable enterprises have also been set up with the sole intention of retreating tailings dumps arising from South Africa's Witwatersrand gold processing operations.
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F 2020 Responsible tailings management
around waste rock dumps and TSFs is conducted to alert operations to negative impacts. Ground water modelling predicts the potential impact of tailings disposal on aquifers and allows for mitigation measures. Our main priority is ensuring the stability of our TSFs. The responsible and safe management of tailings is a strategic
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Mogale Tailings Retreatment Project: Kickoff set …
Load-and-haul mining will be used to extract resources from the smaller North Sands and South Sands tailings dumps. The re-mined tailings will be processed in a CIL plant of similar design to the Elikhulu operation, with …
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Ecological restoration of acidic coalmine overburden dumps …
DOI: 10.2462/09670513.637 Corpus ID: 129575208; Ecological restoration of acidic coalmine overburden dumps - an Indian case study @article{Maiti2005EcologicalRO, title={Ecological restoration of acidic coalmine overburden dumps - an Indian case study}, author={Subodh Kumar Maiti and Mrinal Kanti Ghose}, journal={Land Contamination & Reclamation}, …
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Ecorestoration of Coal Mine Overburden Dump to Prevent Environmental
Bioreclamation of coalmine overburden dumps-with special empasis on micronutrients and heavy metals accumulation in tree species. Environ. Monitor. Assess., 125: 111-122. ... Phytostabilization of mine tailings in arid and semiarid environments-an emerging remediation technology. Environ. Health Perspect., 116: 278-283.
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The Haunting Legacy of South Africa's Gold Mines …
Thousands of abandoned gold mines are scattered across South Africa, polluting the water with toxics and filling the air with noxious dust. For the millions of people who live around these derelict sites, the health impacts can …
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Treasure from trash: how mining waste can be mined a …
Tailings dumps can be gold mines – literally, in some cases. The opportunity Society's appetite for commodities is shifting in favour of critical or strategic metals such as lithium, indium ...
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(PDF) Reclamation of coalmine overburden dump …
Reclamation of coalmine overburden dump through environmental friendly method 5 Please cite this article in press as: Arshi, A. Reclamation of coalmine overburden dump through environmental ...
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The impacts and conflicts associated with defunct gold tailings …
Gold mining generates large quantities of tailings waste. These tailings can have a significant negative impact on the surrounding environment, with concomitant effects on local ecosystems, as well as on human health and quality of livelihoods. The latter is a concern in the Witwatersrand goldfields of South Africa, where communities are located in close proximity to gold mining …
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The Toxic Landscape of Johannesburg's Gold …
There are more than 200 mining dumps containing six billion tons of waste. Year-round winds---ferocious during the winter---continually scatter dust from the tailings and coat the city....
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