treatment of mine dumps

treatment of mine dumps

Environmental impact of mining - Wikipedia

Erosion. Erosion of exposed hillsides, mine dumps, tailings dams and resultant siltation of drainages, creeks and rivers can significantly impact the surrounding areas, a prime example being the giant Ok Tedi Mine in Papua New Guinea.In wilderness areas mining may cause destruction of ecosystems and habitats, and in areas of farming it may disturb or destroy productive grazing and croplands.

How crafty Joburgers found a way to make use of mine dumps

At the mine site of New Modder in Benoni on the East Rand is a dump called Mount Mayhem. They use dune boards (actually, original snowboards), boots and goggles, and they whoop it up down the ...

Mining Waste Treatment Technology Selection

Mining Waste Treatment Technology Selection. Introduction Mining is essential to the economy of the United States, but historical mining practices and the absence of routine mined-land reclamation, remediation, and restoration have led to legacy sites with significant environmental and …

Pyritic metals sequestration on mine dumps treated with ...

Treatment effects on heavy metal concentrations in mine waste and oyster mushroom fruit bodies and trends in mine dump waste pH were performed using Generalized One-Way ANOVA of completely randomized blocks in Latin square design . Flux data on concentrations of heavy metals were log-transformed if needed, to normalize the distributions before ...

The impact of acid mine drainage in South Africa ...

Acid mine drainage (also sometimes referred to as acid rock drainage) is a well-understood process 2. and arises primarily when the mineral pyrite ('fool's gold' or iron disulphide) comes into contact with oxygenated water.. The pyrite undergoes oxidation in a two-stage process, the first producing sulphuric acid and ferrous sulphate and the second orange-red ferric hydroxide and more ...

MANAGEMENT OF MINING, QUARRYING AND ORE …

the mine and the mining company. This raises a legal problem as regards the responsibility for maintenance and repair of these facilities since liability, under most laws, cannot be endless. Even where the facility becomes a permanent structure, it is still necessary to fit the site with a permanent analytical and inspection system. Closure

Classification and Environmental Impact of Mine Dumps ...

Jan 01, 2017· Formation of mine dumps leads to such negative consequences as changing the properties of rocks underlying dumps, modification of regional hydrological and hydrogeological regimes (Chalov et al., 2015, Pashkevich and Petrova, 2016, Romero et al., 2015, Schreck, 1998), and occurrence of geological processes and phenomena that can cause disastrous effects (Aragão and de …

Costs of Remediation at Mine Sites,

----- Costs of Remediation TABLE OF CONTENTS 1.0 INTRODUCTION 1 1.1 Cost Factors 1 1.2 Organization of Report 3 2.0 ACID ROCK DRAINAGE 4 2.1 Waste Rock Pile 5 2.2 Underground Mine Drainage 10 3.0 SEEPAGE AND OVERFLOW FROM LEACH SYSTEMS AND TAILINGS IMPOUNDMENTS 13 3.1 Overflow or Breach of an Impoundment Structure 13 3.2 Leakage from the Face or Toe of a Dam 14 4.0 MINE …

Acid Mine Drainage (AMD): causes, treatment and case ...

Jan 01, 2006· This paper describes Acid Mine Drainage (AMD) generation and its associated technical issues. As AMD is recognized as one of the more serious environmental problems in the mining industry, its causes, prediction and treatment have become the focus of a number of research initiatives commissioned by governments, the mining industry, universities and research establishments, with …

Lecture 4: Mining waste

Passive water treatment is cheaper than active treatment, which generally is a large cost within the mine operations. However, there are still difficulties in treating highly acidic waters with passive techniques. The combination of active and passive treatment techniques can be used to lower costs. Chemicals used in processing

Mine waste dump management - Thickening, Filtering, CCD ...

As we all know, the correct mine waste rock dump management in piles is one of the key actions to control and prevent ARD and NMD release in the environment. The costs of the required and correct controls for the new waste rock dumps (including the project phase) it's being a challe

Mine Rehabilitation and Closure Cost

issue of mine rehabilitation onto the political radar. The controversy surrounding the Queensland Nickel Refinery, the closure of the equally controversial Ranger Uranium Mine and the Century Zinc Mine in Queensland and the first closure of "mega" coal mines in NSW (Anglo American's Drayton) and Queensland (Rio Tinto's

Surface recovery

The retreatment business is high-volume and low-risk. Vast quantities of material are processed monthly through the plant in order to recover gold from old mine dumps at a recovery rate that varies depending on the material being treated. As each old dump or dam is depleted, others are brought on stream.

Ecorestoration of Coal Mine Overburden Dump to Prevent ...

Acid Mine Drainage (AMD) due to mine waste dump: Coal and metal mining disturb large volumes of geological materials and are exposed to the environment. The exposure to air and water, the sulfide minerals commonly associated with coals and metal deposits are oxidized and hydrolyzed resulting in Acid Mine Drainage ( Baruah and Khare, 2010 ).

Environmental and Health Impact of Solid Waste Disposal in ...

hazards to people living in the vicinity of such dumps. One of the main aspects of concern is the pollution caused to the earth—be it land, air and water. According to Nguyen [1] many cities in developing countries face serious environmental degradation and health risks . due to the weakly developed municipal solid waste man-agement system.

Topic 4: Mine wastes - SlideShare

May 17, 2009· Mines wastes:Mine wastes are problematic because they contain hazardous substances that can be (or are) released into the environment around the mine – heavy metals, metalloids, radioactive elements, acids, process chemicals – and therefore require treatment, secure disposal, and monitoring.Wastes are not only produced during mining, but ...

Tailings dump recovery concept - SlideShare

Feb 28, 2014· The retreatment business is high-volume and low-risk. Vast quantities of material are processed through the plant in order to recover gold from old mine dumps at a recovery rate that varies depending on the material being treated. A 10 000 tonne dump with a gold recovery capacity of 1gramme/tonne will produce 10 kg's of gold.

Mine dust and you - Fact sheets - Ministry of Health

Concerns about amenity from mine site dust often relate to "visibility" of dust plumes and dust sources. Visible dust is usually due to short-term episodes of high emissions, such as from blasting. Other amenity impacts include dust depositing on fabrics (such as washing) or on house roofs, and the transport of dust from roofs to water tanks ...

Mine Dumps - Urgent Treatment Needed

Nov 28, 2008· Though WUC's solution addresses water pollution, tailings dams (mine dumps) pose a threat to local communities. Rand Uranium, which is 40%-owned by Harmony Gold, will re mine existing dumps for gold, uranium and sulphates. Harmony environmental manager Rex Zorab says it is a commercial solution to rehabilitation of all dumps in the area.

Can we mitigate environmental impacts from mining ...

Water Treatment. The most common treatment for acidic and metal-bearing waters is the addition of a neutralizing material, such as lime, to reduce the acidity. This "active" treatment process, which causes the dissolved metals to precipitate from the water, usually requires the construction of a treatment facility.

Tailings - Wikipedia

Aug 02, 2020· The Environmental Protection Agency is proposing a permanent mine waste dump site north of Silverton, but the agency needs approval from the landowner, Sunnyside Gold Corp.

Acid Mine Drainage in South Africa

underground mine shafts, runoff and discharge from open pits and mine waste dumps, tailings and ore stockpiles, which make up nearly 88% of all waste produced in South Africa. Drainage from abandoned underground mine shafts into surface water systems (decant) may occur as the mine shafts fill with water. Although the chemistry of

(PDF) Old tailing rehabilitation with regard to ...

environmental hazar d as new mine dumps from processing have to be disposed of in acc ordance with present environmental standards. There are more than 350kgs of gold in the Mooteh tailing dam.

Mine Waste Transfer and Disposal Methods - Mine Tailings ...

EDDY Pump partnered with UAT Pacific and is now able to offer a complete dredging solution for effective slurry, sludge, and solids removal, the Dredge Sled.With the latest technology, the Dredge Sled is a cost-effective solution for your pond, lagoon, canal, mine tailings pond, and settling tank cleaning. The Dredge Sled is a simple, efficient and easy to use alternative to more complicated ...

Joburg's iconic mine dumps are a health risk, say ...

Dec 14, 2012· Dust from the mine dumps, especially during windy days, is irritating and is a health hazard." The level of dust reaching nearby residential areas has made the health risks apparent.

(PDF) Recycling, Reuse and Rehabilitation of Mine Wastes

the mine wa ste hierarc hy (F IG. 1), the mine site reh abilita- tion hiera rchy is a guide for pr ioritiz ing rehabi litation strategies of m ined land, inc luding its waste re positories

Guidelines for Mine Waste Dump and Stockpile Design (2017 ...

Chapter Outlines. This book, Guidelines for Mine Waste Dump and Stockpile Design, is the third book in the LOP Guideline Series and focuses on the investigation, design, operation and monitoring of waste dumps, dragline spoils and stockpiles associated with large open pit mines.This book has been written by a consortium of geotechnical consultants and individuals including Piteau Associates ...

Treasure from trash: how mining waste can be mined a ...

Jun 28, 2016· Identifying mine waste materials as economic resources will help support global demand for critical metals, boosting the mining industry during the downturn. All with environmental benefits.

Waste Management for Mine Solid Waste

The~ sight of mine waste dumps is evident aso~ne enters the minin~ towns of Kabwe. and those on the Copperbe It. Some of these dumps are over 80 years old and dormant while others are sii~l active dum;ing sites. These sites are located either within or outside population centers. The Mining regulations (dumps) promulgated in the early 1970's ...

Acid Mine Drainage (AMD) South Africa

Jun 17, 2016· Acid mine drainage (AMD) is the flow, or seepage, of polluted water from old mining areas. Depending on the area, the water may contain toxic heavy metals and radioactive particles. These are dangerous for people's health, as well as plants and animals. Acid mine drainage on the Witwatersrand has reached a crisis point.

Treating Gold Mine Dump Pond Sludg

Treating Gold Mine Dump Pond Sludg. FOB Reference Price: Get Latest Price The minister told his audience that it was pertinent for all gold mines in Tanzania to adopt the technology for its proven usefulness worth and convenience in treating toxic sludge It is important to use this technology in treating the toxic sludge because of its intrinsic horrifying hazards once seepage from the sludge ...

Adverse effects of coal mine waste dumps on the ...

Jan 31, 2013· Waste dumps generated from mining that exposes sulfur-bearing overburden can be active sources of acid generation with the potential to severely contaminate soils, surface and groundwater, and endanger both local and downstream ecosystems. A waste rock management strategy ensure that disposal of such material is inert or at least stable and contained, and minimizes the …