Background

grazing in gold mine tailings dumps in sa

Mine site rehabilitation are we reinventing the wrong wheel?

partial successes, consequent on this approach. The examples include gold mining in Johannesburg, surface coal mining in Australia, and metalliferous mining in Australia, and focusses on the rehabilitation of steep mine slopes in tailings, spoil or waste rock. 2.1 Rehabilitation of Johannesburg's gold tailings dumps from 1910 to 1991

Defunct gold mine tailings are natural reservoir for ...

Mine tailing dumps are arguably one of the leading sources of environmental degradation with often both public health and ecologically consequences. The present study investigated the concentration of heavy metals in gold mine tailings, and used high throughput sequencing techniques to determine the …

Lifetime cancer risk due to gamma radioactivity in soils ...

The area is polluted by acid mine drainage (AMD) and other heavy metals due to the mining of gold in the past (Norgate & Haque, 2012). Environmentalists have tried to warn the residents about the radioactive dangers from the tailings dump, but it's been a difficult task. Even today, the residents grow pumpkins and corn in small gardens on the dump.

Release of toxic elements from rocks and mine wastes at ...

Gold mine Waste rocks Cyanidation tailings Leaching test Water The Furtei gold mine in Sardinia (Italy) exploits a volcanic-hosted high-sulphidation epithermal deposit. Large amounts of materials derived from exploitation are present in open pits, waste rock dumps and cyanidation tailings impoundment.

The Wake of South Africa's Abandoned Gold Mines

The Wake of South Africa's Abandoned Gold Mines. We have been covering Mining issues in South Africa extensively for the past 17 years but no subject on the matter is of greater importance than the absolute plethora of Abandoned Mines in South Africa and the devastation of Acid Mine Drainage pollution that is left in the wake.

Land Use After Mine Closure — Risk Assessment of Gold and ...

understood (Hoet et al., 2004) and to what extent gold tailings dust contributes to human metal ingestion and absorption has not been investigated in South Africa. With the curtailing of gold mining on the Witwatersrand, mining land is being redeveloped.

Tailings dump recovery concept - slideshare.net

business plan, concept note on mining of dumps. Tailings dump recovery concept 1. TAILINGS-DUMP RECOVERY CONCEPT DOCUMENT F l a t 1 4 0 3, S e d e r h o f, 3 3 3 N a n a S i t a S t r e e t, P r e t o r i a, 0 0 0 2 P h i l l i p 0 7 1 S h a m b a r …

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 mine.

From Tailings to Treasure? Miners Make ... - Advancing Mining

DRD Gold extracted 33,600 ounces of gold, worth nearly US$40 million, in the last quarter of 2013. Mintails, a mine tailings processor, has developed new technology to process 350,000 tons of slimes from its extensive tailings resources. It expects to recover 58 kg of gold per month, and has enough slimes to last until 2025.

The Nature and Articulation of Ethical Codes on Tailings ...

In this paper, the term "tailings" is used interchangeably with the broader term "mine residue deposits" (MRDs), which is used in South Africa to denote dumps, heaps, piles, fillings or tailings dams consisting of mine residue, which usually project above the natural ground surface, but may occupy the space of a pre-existing excavation .

Radionuclides and toxic elements transfer from the ...

The Princess dump is one of the mine dumps of a previously active gold mine in the Witwatersrand Mining Basin in Roodepoort. The dump forms an L-shape and there is a park (Victory Park) inside the shape. At the edge of the dump are houses. Fig. 1(a), Fig. 1(b) and Fig. 2 give a better insight into the place. Download : Download high-res image (2MB)

Selected extracts from South Africa's environmental ...

Selected extracts from South Africa's environmental legislation, challenges with M Liefferink the management of gold tailings within the Witwatersrand gold fields and case studies 52 Paste 2019, Cape Town, South Africa Court laid a solid foundation for an integrated understanding of the right to development‐in‐environment

Potential use of biological soil crusts and silicate on ...

historic gold tailings dams in the Witwatersrand area of South Africa is being investigated. The objective is to recover uranium and residual gold from the tailings, as well as to oxidize the sulphides to eliminate long term environmental liabilities associated with acid mine drainage. The tailings from the re-processing plant will be re-

CHAPTER 5 GOLD MINE TAILINGS AS A SOURCE OF …

THE INFLUENCE OF THE TAILINGS ON THE pH AND EC OF THE UNDERLYING SOILS The gold mine tailings produces acidic leachate as discussed in Chapter 2, due to the oxidation of pyrite and other sulphide minerals. The acidity and associated trace elements will leach into the underlying soils under normal soil drainage conditions.

Potential use of biological soil crusts and silicate on ...

Introduction. The Rehabilitation of Gold Mine Tailings is one of the Southern Africa Resilience Innovation Lab (SA RILab) innovation projects implemented in South Africa by a University of Pretoria student. The project falls under the Youth Spark Innovation Grant with the ultimate focus to improve health of people or communities living within the vicinity of the mine dumps.

Mines for sale | Businesses4Sale

About this opportunity: On offer 51% share @ $13.7m * Over 20 million tons of tailings in the dumps * The mine is currently dormant * Equipment installed, processing facilities * Life expectancy of mine = 12 years * Valid mining permit to extract gold from tailings and the mining of gold * Processing plant has been established and needs minor ...

South African Legislation Pertinent to Gold Mine Closure ...

mining company and its directors, in their personal capacity, remain liable. Gold is largely mined from sulphidic ores in South Africa, and there are approximately 6 billion tonnes of gold mine tailings in unlined facilities on the Witwatersrand Basin of South Africa (Chevrel et …

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 ...

Extraction of Gold from Sands and Slimes Tailings Dump ...

The average grade of the tailings is 1.1 g/t. This paper describes the test work, process design of a processing system at the Mazowe Mine that will improve the extraction efficiency from gold tailings material. The recovery is derived from the separation of the gold contained within the sulphides of the tailings material and a dedicated ...

The Toxic Landscape of Johannesburg's Gold Mines | WIRED

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 …

South Africa, gold mines continue poisoning communities ...

Radioactive dumps in communities. Johannesburg and surrounding communities' main concern are mine mountain dumps, made up of crushed, sand-like refuse materials known as tailings produced during the mining process, a complex mixture of metals and dust particles. Read more: The Kabwe lead mine, closed over 20 years ago, is poisoning thousands of children in Zambia

MINE TAILINGS AND THEIR POTENTIAL IMPACTS: A CASE …

MINE TAILINGS AND THEIR POTENTIAL IMPACTS: A CASE STUDY OF SOUTH AFRICAN GOLD TAILINGS DAMS Ogola, J.S. Department of Mining and Environmental Geology, School of Environmental Sciences University of Venda, Private Bag X5050, South Africa, [email protected] LIMPOPO MINERALS CONFERENCE 7 TRADE SHOW MOKOPANE NOVEMBER 10-13, 2015

Impacts of Gold Mill Tailings Dumps on Agriculture Lands ...

At Kolar Gold Fields (KGF), Karnataka, about 40 million tonnes of mill tailings were generated during beneficiation of gold ore[1], which have covered about 2-sq. km. of the area[2]. Though plantations on the dumps are almost nil but some grasses have come on the dump surface.

Ezulwini gold and uranium mining, Gauteng, South Africa ...

[9] Report by Wise and Somo 2011 by Fleur Scheele : Uranium from Africa. ISBN:978-90-7 [click to view] [8] Perceptions of external costs of dust fallout from gold mine tailings: West Wits Basin [click to view] [6] FRANK WINDE, 2009, URANIUM POLLUTION OF WATER RESOURCES IN MINED-OUT AND ACTIVE GOLDFIELDS OF SOUTH AFRICA - A CASE STUDY IN THE …

Geochemical properties of soil from gold mine tailing dump ...

Download scientific diagram | Geochemical properties of soil from gold mine tailing dump. from publication: Dataset on Assessment of pollution level of selected trace metals in farming area within ...

Hazards identified and the need for health risk assessment ...

South Africa has many decommissioned mines and large mine tailings dumps and dams. It has been estimated that there are more than 270 tailings dams related to gold mining alone, covering a total area of about 180 km 2 . 90 Most of the tailings dams and dumps are located close to human dwellings and agricultural land. 91 When mining ceases, the ...

SOIL, LAND USE AND LAND CAPABILITY ASSESSMENT FOR …

the open cast and below-surface mining operations. Open cast mining, infrastructure complexes and waste rock dumps would affect soils, however, as these soils are deemed to be unsuitable for cultivation or grazing, the impact significance is considered to be low. Key mitigation measures include:

Where have all the mine dumps gone? | The Heritage Portal

Mine dumps in the south from Soccer City (The Heritage Portal) Forty years ago the view from the top of the Carlton Centre when looking south, east and west was to see mine dumps that stretched into the distance, from then until now the mine dumps have been levelled to the ground and their footprints have been rehabilitated in order that the land be redeveloped for commercial use.

Re-Processing Gold Tailings in South Africa

historic gold tailings dams in the Witwatersrand area of South Africa is being investigated. The objective is to recover uranium and residual gold from the tailings, as well as to oxidize the sulphides to eliminate long term environmental liabilities associated with acid mine drainage. The tailings from the re-processing plant will be re-

Failure of a mine waste dump in Zimbabwe: Causes and ...

A combination of factors are considered important in causing the failure and subsequent development of a flowslide of a gold mine waste dump (or tailings dam) at Arcturus, near Harare, Zimbabwe. These factors comprise poor basal drainage, steep perimeter walls, saturation of the walls and basal sediments through continued spigoting of slurry during a period of heavy rainfall, and the effect of ...

gold tailings reprocessing techniques in malaysia

Gold cyanidation Wikipedia. Gold cyanidation is a hydrometallurgical technique for extracting gold from low grade ore by converting the gold to a water soluble coordination complex It is the most commonly used leaching process for gold extraction Production of reagents for mineral processing to recover gold copper zinc Studies show that residual cyanide trapped in the gold mine tailings caus