Oct 14 2016 0183 32 Amec Foster Wheeler Africa s mining division has received several requests for studies and feasibility studies on tailings projects and has noted an interest in tailings retreatment from gold...
Mining of minerals such as gold copper and platinum has been one of several activities sustaining the economy of South Africa However the mining sector has contributed significantly to environmental contamination through the improper disposal of mine tailings which covers vast areas of land Therefore this study utilised a vitrification process to manufacture glass from gold mine tailings...
There are 5906 abandoned mines in South Africa SAI 2009 In Limpopo Province there are approximately 729 abandoned min Gold mine tailings dams are the source of heavy metals contamination of soil and groundwater Consequently there is need to determine the concentrations of Pb Zn Cu As Co...
A laboratory investigation on the performance of South African acid producing gold mine tailings and its possible use in mine reclamation Gcasamba SP 1 Ramasenya K 1 Ekolu S 2 Vadapalli VRK 1 Author information 1 Council for Geoscience Pretoria South Africa...
Gold Fields is committed to implementing the 77 requirements set by the Global Industry Standard on Tailings Management GISTM developed by the PRI ICMM and UNEP The ICMM has allowed for a three-year implementation period August 2023 for Extreme and Very high consequence facilities and an additional two years for other facilities August...
Feb 01 2021 0183 32 Mining of gold in the Welkom and ia areas of the Free State Province in South Africa has produced numerous gold mine tailings which contain a variety of contaminants The extent of contamination of groundwater in the area was studied by measuring several water quality indicators at eight sampling sites and within three zon...
Feb 13 2021 0183 32 As a historic gold mining area the City of Benoni has numerous water bodies close to major tailings dams and mine dumps Here we assess spatial patterns in the sediment geochemistry of five dams and four natural pans within a 5-km radius of the core mining area to determine the degree of contamination7 by mining-associated pollutants XRF analysis was used with a geoaccumulation...
Jan 05 2012 0183 32 In the Witwatersrand goldfields 30 kilometers south of the caves more than a century of mining has left the region littered with mounds of waste known as tailings dumps and underlain by a deep underground network of abandoned mine shafts which are gradually filling with water...
Feb 21 2017 0183 32 Gold mining is a major source of metal and metalloid emissions into the environment Studies were carried out in Krugersdorp South Africa to evaluate the ecological and human health risks associated with exposure to metals and metalloids in mine tailings contaminated soils Concentrations of arsenic As cadmium Cd chromium Cr cobalt Co copper Cu lead Pb...
Abstract Numerous old gold sand and slimes tailings dumps on the Witwatersrand have been reprocessed since the 1980s for residual gold extraction using cyanide as a lixiviant There are numerous technologies available by which many cyanide species may be decomposed However at most gold mines in South Africa cyanide is simply discharged with the effluent and tailings based on the...
The tailings wheel Robinson gold Mine Johannesburg South Africa with miners smoking about 1900 JOHANNESBURG SOUTH AFRICA - Buildings in southern section of the central business district and mounds of gold mine tailings...
Background When gold-bearing rock is processed and the gold is extracted the remaining material is moved to tailings dams as waste as was the case at the Merriespruit No 4 facility Method of construction As is typical with gold tailings in South Africa the Merriespruit tailing dam was constructed using the upstream semi-dry paddock method where a daywall perimeter is...
Jun 18 2014 0183 32 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...
Key words gold mining mine tailings sediments seepage uranium contamination uranium mobility uranium pollution Abstract During more than a century of gold mining in South Africa large amounts of tailings were produced which now cover vast areas in densely populated regions These dumps contain elevated levels of uranium and other toxic...
Nov 27 2020 0183 32 Gold tailings retreatment offers an environmental solution Owing to its gold mining heritage Johannesburg is the most radioactive city on the planet says nonprofit organisation Earthlife Africa...
In South Africa the gold mining industry has existed for over a century As a result mine tailings are littered everywhere particularly in the Wonderfonteinspruit Catchment Area WCA posing a threat to local communiti The communities living around these areas are threatened by radioactive pollution mainly caused by uranium...
Dec 06 2018 0183 32 South Africa needs to refresh how it manages by-products from mining A gold tailings dam under construction in South Africa Author supplied To extract minerals from host rocks mines grind down...
2 GEOLOGY MINERALOGY AND CHEMISTRY OF THE GOLD ORE AND RELATED TAILINGS 14 21 HISTORICAL ANDGEOLOGICAL ASPECTS 14 22 MINERALOGy 16 221 Macroscopic description ofthe gold-bearing conglomerate 16 222 Mineralogical composition ofthegold-bearing conglomerate 16 223 Mineralogical composition ofgoldminetailings 17 23 CHEMISTRy 19...
Gold mining in South Africa resulted in vast volumes of tailings which have been deposited in impoundments Poor management of most of the tailings dams resulted in the escape of seepage adversely affecting soils and water quality Some tailings dams have been partially or completely reclaimed leaving contaminated footprints These zones pose a serious threat to the underlying...
Oct 01 2021 0183 32 In South Africa the principle management guidance document for tailings storage facilities is SANS 10286 the origin of which dates back to 1998 This standard contains fundamental objectives the principles and minimum requirements for best practice all aimed at ensuring that no unavoidable risks problems and/or legacies are left to future...
Radiological hazards associated with exposure to Naturally Occurring Radionuclides Materials from gold mine tailings in the province of Gauteng in South Africa were evaluated A comparison was made with soil samples from a control area In this study gamma spectroscopy was used to measure the activ...
Exceedance of environmental exposure limits to crystalline silica in communities surrounding gold mine tailings storage facilities in South Africa Sci Total Environ 2018 Apr 1 619-620 504-516 doi 101016/jscitotenv201711135...
MINE TAILINGS AND THEIR POTENTIAL IMPACTS A CASE STUDY OF SOUTH AFRICAN GOLD TAILINGS DAMS Ogola JS Department of Mining and Environmental Geology School of Environmental Sciences University of Venda Private Bag X5050 South Africa ogolaj univenacza LIMPOPO MINERALS CONFERENCE 7 TRADE SHOW MOKOPANE NOVEMBER 10-13 2015...
Jun 27 2019 0183 32 Uranium U measurements in water soil and food related to gold mining activities in populated areas in Gauteng Province South Africa suggest the possibility of exposure levels that may lead to adverse health consequences including cancer Theoretical considerations on pathways of human uptake of significant exposures are plausible but few data on directly measured human...
In South Africa uranium is a by-product of gold mining >See also Database Index Uranium Mining in Sub-Saharan Africa African Development Information Services Historical uranium production to 1996 395k PDF - Chamber of Mines Beatrix mine Free State Province Beisa Reef mining area...
Venda Private Bag X5050 Thohoyandou 0950 South Africa Abstract In South Africa there are about 6 000 abandoned mines and the cost of their rehabilitation is about US 10 billion The main concern here is the tailings dams most of which are associated with gold mining Consequently there is need to identify new strategies for the...
Sep 14 2017 0183 32 An Assessment of Radiological Hazards from Gold Mine Tailings in the Province of Gauteng in South Africa by Kamunda C Mathuthu M Madhuku M in International Journal of Environmental Research and Public Health Vol 13 No 1 January 2016 138 Open Access Caution the abstract reached with this link contains a number of typographical...
mining facilities such as waste woodland common to central and south-central Africa and is the dominant design and operation of tailings storage facilities NEWMONT GHANA GOLD LTD AHAFO SOUTH PROJECT for the Ahafo South Mining Project in compliance with Region of Ghana West Africa for reclamation of tailings and other...
The mineral assets are historical gold plant tailings material from the mining of auriferous and uraniferous ore from the goldbearing late Archaean 27Ga to 32Ga Witwatersrand Basin in...
The aim of this study was therefore to investigate the occurrence of cyanobacteria and algae on gold mine tailings storage facilities in the Northwest province in South Africa that are...
Gold mining in South Africa resulted in vast volumes of tailings being deposited in impoundments and poor management of some tailings dams resulted in seepage adversely affecting soils and water...
1 Gold Mining and Human Rights in South Africa 13 The Origins and Early Effects of Gold Mining in the Witwatersrand 13 The Mining Industry in the Apartheid Era 15 Post-Apartheid South Africa and Its Human Rights Commitments 16 Gold Mining in Modern South Africa 18 2 Human Rights Framework 19 Economic Social and Cultural Rights 19...
In-situ densities and void ratios for gold tailings 2-67 Permeability values for gold tailings 2-69 Coefficient of Compressibility C e of gold tailings 2-71 Coefficients of consolidation c v for gold tailings 2-72 Static shear strength parameters for gold tailings 2-74 Mine Metallurgical Report for Mizpah Whole Tailings March 1997...
About Gold Fields Gold Fields is a globally diversified gold producer with nine operating mines in Australia Peru South Africa and West Africa including the Asanko JV as well as one project in Chile during mining Tailings can be in the form of liquid solid or a slurry of fine particl...
May 07 2015 0183 32 DRD Gold one of the first South African companies to abandon traditional mining to focus on extracting gold from tailings New technology allows it to recover up to 40 of the gold left in particle form in tailings DRD Gold extracted 33 600 ounces of gold worth nearly US 40 million in the last quarter of 2013...
Mine tailings especially historical ones can contain economically feasible resources and given the right condition such tailings could be reutilised through a waste valorisation concept A prominent example are the Witwatersrand gold mine tailings in South Africa which...
From Tailings to Treasure Miners Make - Advancing Mining...
Dec 02 2020 0183 32 Gold Tailings The Environment Owing to its gold mining heritage Johannesburg is the most radioactive city on the planet says nonprofit organisation Earthlife Africa Uranium was considered merely a waste product in the late 1800s and was haphazardly discarded without any thought of recovery...