remediation of gold mine tailings

N.S. plans to close 2 sites contaminated by old gold mines ...

Responses of sulfate and chloride concentrations in pore water of Cu-tailings subject to organic matter remediation: 10 and 20 % hay (v/v). The hay was mixed thoroughly throughout the profile of ...

Remediating mine tailings and recovering gold | Mining ...

Oct 10, 2019· Long Lake Gold mine operated intermittently from 1908 to 1937 and produced approximately 200,000 tonnes of tailings. The tailings were discharged directly to the environment without containment. The tailings have since eroded into Luke Creek and Long Lake.

Technical Report: Design and Evaluation of Tailings Dams ...

About the Giant Mine Remediation Project. The Giant Mine Remediation Project addresses the long-term containment and management of the arsenic trioxide waste, the demolition and removal of all buildings on the surface, and the remediation of surface areas including the tailings ponds at the former Giant Mine site in Yellowknife.It also includes water management and treatment options.

Gold Extraction from Tailings and mine waste

Mine tailings are detrimental to natural plant growth due to their physicochemical characteristics, such as high pH, high salinity, low water retention capacity, high heavy metal concentrations, and deficiencies in soil organic matter and fertility. Thus, the remediation of mine tailings …

Tackling Tailings: Repurpose and Remediation — XPRIZE ...

Tailings from gold mining operations can pose a threat to the environment and health of nearby communities. Not only can this waste be harmful if it leaches into groundwater, but it …

Phytoremediation of Gold Mine Tailings Amended with Iron ...

----- 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 …

Planet before Profit - EnviroGold harnesses mine waste to ...

Aug 10, 2020· Remediating Mount Polley: tailings pond disaster, six years on Imperial Metals' multi-year restoration saga in the wake of the 2014 Mount Polley tailings dam rupture

Phytostabilization of Mine Tailings in Arid and Semiarid ...

New Hope Coal Remediation Project involves remediation of former open-cut coal mine using mine spoil. Target Gully tailings dam The department is progressing a two-stage remediation plan for the tailings dam.

Remediation Public Safety Remediation Projects Examples of ...

Gold Extraction from Tailings. Star Trace has been providing a standard technique for extracting the mineral contents from the mining tailings. Star Trace will start the process by sample testing through the mineral content of the tailings.

Optimizing Remediation of Gold Mine Tailings in Nova Scotia

Oct 10, 2019· Long Lake Gold mine operated intermittently from 1908 to 1937 and produced approximately 200,000 tonnes of tailings. The tailings were discharged directly to the environment without containment. The tailings have since eroded into Luke Creek and Long Lake. The tailings are acid generating and leach acidic water that is high in metal …

Long Lake Gold Remediation (Remediation Plan for ...

Examples of environmental contamination remediation projects Walker Mine Tailings Revegetation Study and Dust Mitigation Project -The . Walker Mine Tailings, part of . the 2007 priorities list, is a 100 acre mine tailings located on the Plumas National Forest, east of Quincy in Plumas County. The Walker Mine produced significant quantities of ...

New Tailings Reprocessing Technology ... - Advancing Mining

Optimizing Remediation of Gold Mine Tailings in Nova Scotia Michael B. Parsons1, Heather E. Jamieson2, Stephanie L. DeSisto2 and Jennifer Kavalench2 In recent years, Canadians have demonstrated an increased awareness of the potential impacts of mining activity on environmental and human health.

Developing a biosurfactant to attenuate arsenic ...

What is the Faro Mine Remediation Project? The Faro Mine Remediation Project is one of the most complex abandoned mine clean-up projects in Canada. It was established to prevent the contamination of nearby land and water from the former mining operation. Risk mitigation work is taking place at the site to ensure it remains stable and secure.

Remediation Q&A | Imperial Metals

Metals Soil Pollution and Vegetative Remediation (tailings), (gold) Use of Poplar Trees in Remediating Heavy Metal Contaminated Sites Exit (Similar study to above, but with zinc/lead) Acid Producing Metalliferous Waste Reclamation by Material Reprocessing and Vegetative Stabilization, (Tailings).

Phytostabilization of Mine Tailings in Arid and Semiarid ...

Aug 24, 2015· In dredge mining, excavation, slurrification and collection (suction) of tailings occurs simultaneously, making dredging a suitable solution, with wide applications in tailings remediation projects. Different case studies in Chile and Brazil are discussed in this article to illustrate this.

Giant Mine Remediation Project | Environment and Natural ...

Rogue River-Siskiyou National Forest, Oregon ERRG conducted a tailings remediation and site restoration project at the remote Blue Ledge Mine in Rogue River-Siskiyou National Forest, Oregon for the U.S. Forest Service. ERRG was tasked to restore this abandoned copper mine to pre-mining conditions.

McLaren Tailings Reclamation Project

Conventional technologies for remediation of mine tailings have focused on physical and chemical stabilization. Physical stabilization entails covering mine waste with an innocuous material, generally waste rock from mining operations, gravel, topsoil from an adjacent site, or a clay capping, to reduce wind and water erosion.

Abandoned Mine Lands: Technical Resources | Superfund | US EPA

Proceedings_Theme_10_n_Proceedings IMWA 2010 2010-08-16 05:57 Page 575 Sydney, NS "Mine Water and Innovative Thinking" IMWA 2010 Using Hydrogeochemical Data to Improve Remediation of Historical Gold Mine Tailings in Nova Scotia stephanie L. DEsIstO¹, Michael B. PArsONs², Heather E. JAMIEsON¹ ¹Queen's University, Department of Geological Sciences & …

Remediation Public Safety Remediation Projects Examples of ...

Mine Water. Tailings & Waste. EPCM Mining. Mine Closure & Remediation. ... Stantec carries out greenhouse gas inventory for a gold mine in Ghana ... Watch a time-lapse of the mine closure and remediation at Holden Mine—located in a …

Contaminated Sites in the Northwest Territories

The organic matter content of the mine tailings is less than 5 mg.kg −1. Therefore, the content of nutrients associated with the organic matter is scarce and insufficient for the development of many plant species . The pH measured was 3.49, which is not surprising when it comes to gold mining tailings.

Gold Tailings: Hazards and Opportunities | INN

Remediation of Uranium Mill Tailings Wastes in Australia : A Critical Review G.M. Mudd Dept. Civil Eng., Uni. of Queensland, St Lucia, QLD., 4072, AUSTRALIA ABSTRACT: Australia has been an active participant in the global uranium mining industry since its inception in the 1940s. By the late 1950s five major mining and milling projects were

Optimizing Remediation of Gold Mine Tailings in Nova Scotia

Remediation of Commodities Overview Remediation of heavy metal contaminated soils is necessary to reduce the presence of toxic metals in soil that can severely inhibit the biodegradation. Soils may become contaminated by the accumulation of heavy metals and metalloids through emissions from the rapidly expanding industrial areas, mine tailings, …

Blue Ledge Mine, Tailings Remediation and Site Restoration ...

The McLaren Tailings site was designated an Emergency Response Action Site by the U.S. Environmental Protection Agency in 1988, resulting in efforts to stabilize the dam. DEQ began work on the McLaren Tailings in June 2010. Excavation of the tailings required extensive construction dewatering and water treatment to excavate the tailings safely.

Mine Waste - an overview | ScienceDirect Topics

Metals Soil Pollution and Vegetative Remediation (tailings), (gold) Use of Poplar Trees in Remediating Heavy Metal Contaminated Sites Exit (Similar study to above, but with zinc/lead) Acid Producing Metalliferous Waste Reclamation by Material Reprocessing and Vegetative Stabilization, (Tailings).

Long Lake Gold Remediation (Remediation Plan for ...

Several efforts are underway to extract gold and copper from tailings. Reprocessing mine tailings may also have environmental benefits. A recent project described in Mining.com is a series of experiments carried out by an international group of scientists to produce approximately 30 years of passive carbonation of mine tailings …

Optimizing Remediation of Gold Mine Tailings in Nova …

Aug 23, 2020· The EPA will initiate Superfund site assessment for two former mining districts in Big and Little Cottonwood canyons. Mine debris and waste rock in a watershed that provides 60% of the valley's drinking water is not a good mix. Abandoned mines are a huge problem across the country and particularly in the West.

Could microbes help remediate abandoned gold mines ...

Apr 01, 2015· The Zarmehr gold mine was located in NE Iran, in Khorasan-Razavi province. At this site, the cyanide solutions were applied for gold recovery from the ore and the cyanide-containing wastes were stored in the tailing pond. Sampling …

(PDF) Is rhizosphere remediation sufficient for ...

Inactive tailings impoundments also are receiving more attention due to the long-term effects of windblown dispersal, ground water contamination, and acid drainage. In many cases, the costs of remediation can be considerable, exceeding the costs of original design and operation of the tailings impoundment.

Abandoned Mine Lands: Technical Resources | Superfund | US EPA

Tailings are currently reprocessed for gold (e.g. in the Witwatersrand in South Africa), zinc, copper, all sorts. Our recently publications have highlighted that there are a lot of tailings around the world that contain significant amounts of potentially extractable metals, either because of initially inefficient processing or because the original mining wasn't focused on metals that …

Mine tailings dams: Characteristics, failure ...

Review Mine tailings dams: Characteristics, failure, environmental impacts, and remediation D. Kossoffa,b, W.E. Dubbinb, M. Alfredssonc, S.J. Edwardsd, M.G. Mackline ...

Remediating Mount Polley: tailings pond disaster, six ...

Remediation of Uranium Mill Tailings Wastes in Australia : A Critical Review G.M. Mudd Dept. Civil Eng., Uni. of Queensland, St Lucia, QLD., 4072, AUSTRALIA ABSTRACT: Australia has been an active participant in the global uranium mining industry since its inception in the 1940s. By the late 1950s five major mining and milling projects were

A Review on in Situ Phytoremediation of Mine Tailings

Examples of environmental contamination remediation projects Walker Mine Tailings Revegetation Study and Dust Mitigation Project -The . Walker Mine Tailings, part of . the 2007 priorities list, is a 100 acre mine tailings located on the Plumas National Forest, east of Quincy in Plumas County. The Walker Mine produced significant quantities of ...

Faro Mine Remediation Project: Yukon

The Gunnar gold mine tailings pond in southeast Manitoba has remained largely unvegetated since the mine was closed in 1942, with limited vegetation developed on one side of the pond.

Abandoned Mine Lands: Technical Resources | Superfund | US EPA

EnviroGold is a modern precious metals company with a Planet before Profit focus, applying specialized processes and technologies to recover dissolved and surface gold and other precious metals from mine tailings & mine affected wastewater with a high regard for active environmental remediation

Remediation Public Safety Remediation Projects Examples of ...

Metals Soil Pollution and Vegetative Remediation (tailings), (gold) Use of Poplar Trees in Remediating Heavy Metal Contaminated Sites Exit (Similar study to above, but with zinc/lead) Acid Producing Metalliferous Waste Reclamation by Material Reprocessing and Vegetative Stabilization, (Tailings).

Abandoned Mine Lands: Technical Resources | Superfund | US EPA

At Mount Polley, using the results of the detailed site investigations, and the human health and ecological risk assessments, the goal of the mine's environmental remediation work is to repair and rehabilitate the areas impacted by the tailings spill such that they are on a path to self-sustaining ecological processes that result in ...

Remediation of Uranium Mill Tailings Wastes in Australia ...

Brenda Mines, located 22 km northwest of Peachland in British Columbia was an open pit copper-molybdenum mine which closed in 1990 after 20 years of operation. The primary concern in Brenda's tailings and waste rock drainage is molybdenum at a concentration of approximately 3 mg/L. The

15/16. Source Control or Remediation of Mine Wastes: Low ...

Inactive tailings impoundments also are receiving more attention due to the long-term effects of windblown dispersal, ground water contamination, and acid drainage. In many cases, the costs of remediation can be considerable, exceeding the costs of original design and operation of the tailings …

In Situ Stimulation of Thiocyanate Biodegradation through ...

Metals Soil Pollution and Vegetative Remediation (tailings), (gold) Use of Poplar Trees in Remediating Heavy Metal Contaminated Sites Exit (Similar study to above, but with zinc/lead) Acid Producing Metalliferous Waste Reclamation by Material Reprocessing and Vegetative Stabilization, (Tailings).

Mine Closure & Remediation - Stantec

Toxic chemicals used to extract the valuable materials from the ore, such as the cyanide used in gold mining, remain in the tailings at the end of the process, and may leach out into ground water.