acid mine drainage in obuasi gold mines in ghana

  • acid mine drainage in obuasi gold mines in ghana

    acid mine drainage in obuasi gold mines in ghana Oct , the obuasi gold mine, located km northwest of accra in ghana, was the major asset of ashanti goldfields company agc, established in london in agc started underground mining in lonrho purchased agc in and the ghanaian government reduced its holding in , leaving lonrho now lonmin with a stake and corporate plus

  • Acid Mine Drainage Potential of the Coral Snake Waste Dump

    The results show that the Coral Snake Waste dump is not acid generating, although As and Pb levels in streams are issues of major concern Ndur, S Amegbey, N Agyeman, J and Frempong, V (2010), “Acid Mine Drainage Potential of the Coral Snake Waste Dump, Anglogold Ashanti, Obuasi Mine”, Ghana Mining Journal, Vol 12, pp 32 37

  • Mine water remediation at AngloGold Ashanti mine,

    Request PDF Mine water remediation at AngloGold Ashanti mine, Obuasi, Ghana Simulation of acid generation capacity of multiple sulphiderich gold ores and Arsenic leaching and management in

  • HOME Obuasi Gold Mine

    The Obuasi Gold Mine(OGM) is an openpit and underground gold mine situated near Obuasi, in the Ashanti Region of Ghana It is one of the top9 largest gold mines on Earth The ‘land’ is primarily owned by the Asantehene King Osei Tutu II The mine is in Obuasi Municipal District, which is roughly 39 miles (594 kilometers) southwest of regional capital Kumasi It has remained Africa’s

  • Concentrations, hydrochemistry and risk evaluation of

    Jimi River and its tributaries at Obuasi a mining enclave in Ghana Noah Kyame Asare‑Donkor*, by acid mine drainage (AMD) is a significant environmental problem in some parts of the world, particularly in densely populated developing countries where human habitats are usually in close proximity to mine sites (Lee 2003) More recently concerns have been raised about the stability and

  • Major Mines Projects Obuasi Mine

    05/06/2019  The mine is located within the Obuasi concession area in southwestern Ghana along the north easterlystriking Ashanti volcanic belt The deposit is one of the most significant Proterozoic gold belts discovered to date The Ashanti belt predominantly comprises sedimentary and mafic volcanic rocks, and is the most prominent of the five Birimian Supergroup gold belts found in Ghana The belt

  • Trace elements contamination of soils around gold mine

    mination, and acid drainage (USEPA, 1994; Aucamp and van Schalkwyk, 2003) This present study investigated the issue of gold mines tailings dams as a potential source of trace elements contamination in adjoining soils at the Obuasi gold mine The study considered two types of tailings dams one active

  • Modified acid–base accounting model validation and pH

    Modified acid–base accounting model validation and pH buffer trend characterisation in mine drainage at the AngloGold Ashanti Obuasi mine in Ghana, West Africa Authors Gordon Foli

  • Concentrations, hydrochemistry and risk evaluation of

    Jimi River and its tributaries at Obuasi a mining enclave in Ghana Noah Kyame Asare‑Donkor*, by acid mine drainage (AMD) is a significant environmental problem in some parts of the world, particularly in densely populated developing countries where human habitats are usually in close proximity to mine sites (Lee 2003) More recently concerns have been raised about the stability and

  • Distribution of Heavy Metals in Organs of Sheep and Goat

    Goat Reared in Obuasi: A Gold Mining Town in Ghana Osei Akoto1, Nesta BorteySam2, Shouta MM Nakayama2, Yoshinori Ikenaka2, emission and acid mine drainage transported into water bodies and farmlands These contaminants are known to contain elevated levels of toxic metals and metalloids such as Pb, Cd, Hg and As (Tubaro et al, 2007) These metals and metalloids tend to

  • Levels of heavy metals and contamination status of a

    26/08/2019  FOLI, G (2017) Arsenic remediation in mine drainage at the AngloGoldAshanti Obuasi Mine in Ghana A Ph D (Doctoral dissertation, Thesis presented to Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana FAO/WHO FOOD AND AGRICULTURAL ORGANIZATION/WORLD HEALTH ORGANIZATION (2001) Codex alimentarius commission Food

  • Heavy metals contamination and human health risk

    01/04/2016  Gold mining in and around Obuasi dates back to the nineteenth century Deep mining has been the main practice to date AngloGold Ashanti mine, one of the largest gold (Au) mines in subSaharan Africa located within Obuasi, alone contributes more than 50 % of the total annual gold production in the country (AngloGold 2006) Gold brings about 45 % of the total export revenue to the

  • The menace of mining and water pollution

    07/04/2017  Acid Mine Drainage(AMD) describes how the excavation of rocks that contain sulphides when exposed to weather conditions of water and oxygen ends

  • Potential heavy metal pollution of soil and water

    01/04/2019  Ghana is known to be one of the major gold producers globally, and the mining sector is believed to contribute significantly to the gross foreign earnings of the country Artisanal gold mining has been on the increase in the country and it is said to be a major contributor of metals in water resources due to indiscriminate use of Mercury (Hg) and other harmful chemicals in the mining

  • Kamock Baidoo Obuasi Municipal, Ashanti, Ghana

    The chemical stability of tailings from mineral processing is important subject for study within the research field regarding the possible impacts for the environment, especially groundwater pollution and acid mine drainage (AMD) Tailings generated from processing metal ores can be classified as finedgrained sedimentwater slurry The solids are composed of minerals such as silicates, oxides

    职位: Ghana Geological Survey
  • Ahafo Earthworks

    10/06/2021  On October 16, 2001, a tailings dam burst at the Tarkwa gold mine in the Wassa West District of Ghana sending thousands of cubic meters of mine waste into the Asuman River and contaminating it with cyanide and heavy metals The Tarkwa mine is operated by Gold Fields Ghana, a South African gold mining company The disaster left more than one thousand people without access

  • Trace elements contamination of soils around gold mine

    mination, and acid drainage (USEPA, 1994; Aucamp and van Schalkwyk, 2003) This present study investigated the issue of gold mines tailings dams as a potential source of trace elements contamination in adjoining soils at the Obuasi gold mine The study considered two types of tailings dams one active

  • Modified acid–base accounting model validation and pH

    Modified acid–base accounting model validation and pH buffer trend characterisation in mine drainage at the AngloGold Ashanti Obuasi mine in Ghana, West Africa Authors Gordon Foli

  • Distribution of Heavy Metals in Organs of Sheep and Goat

    Goat Reared in Obuasi: A Gold Mining Town in Ghana Osei Akoto1, Nesta BorteySam2, Shouta MM Nakayama2, Yoshinori Ikenaka2, emission and acid mine drainage transported into water bodies and farmlands These contaminants are known to contain elevated levels of toxic metals and metalloids such as Pb, Cd, Hg and As (Tubaro et al, 2007) These metals and metalloids tend to

  • Heavy metals contamination and human health risk

    01/04/2016  Gold mining in and around Obuasi dates back to the nineteenth century Deep mining has been the main practice to date AngloGold Ashanti mine, one of the largest gold (Au) mines in subSaharan Africa located within Obuasi, alone contributes more than 50 % of the total annual gold production in the country (AngloGold 2006) Gold brings about 45 % of the total export revenue to the

  • Potential heavy metal pollution of soil and water

    01/04/2019  Ghana is known to be one of the major gold producers globally, and the mining sector is believed to contribute significantly to the gross foreign earnings of the country Artisanal gold mining has been on the increase in the country and it is said to be a major contributor of metals in water resources due to indiscriminate use of Mercury (Hg) and other harmful chemicals in the mining

  • Kamock Baidoo Obuasi Municipal, Ashanti, Ghana

    The chemical stability of tailings from mineral processing is important subject for study within the research field regarding the possible impacts for the environment, especially groundwater pollution and acid mine drainage (AMD) Tailings generated from processing metal ores can be classified as finedgrained sedimentwater slurry The solids are composed of minerals such as silicates, oxides

    职位: Ghana Geological Survey
  • Underground water quality at Bogoso and its environs, a

    foreign) enterprises are prospecting for gold and another 18 are operating gold mines (Hilson, 2002a, b) The main gold prospects in Ghana occur at Obuasi, Prestea, Bogoso and Tarkwa (Smedley, 1996) Largescale mining in the BogosoPrestea region is conducted as both deeppit and surface mining Cyanidation is the

  • Home AngloGold Ashanti

    11/06/2021  In Ghana, the company has two mines, Iduapriem and Obuasi, with Obuasi currently on care and maintenance AngloGold Ashanti’s operations in the Australasian Region, Sunrise Dam and Tropicana, are located in the northeastern goldfields of the state of Western Australia The region produced 520 000oz of gold in 2016, which accounts for 14% of

  • AngloGold Ashanti, Obuasi Mine Cuts Sod for

    04/06/2020  AngloGold Ashanti, Obuasi Mine led by its Managing Director, Eric Asubonteng has cut the sod for the construction of a 13 km stretch of road and drainage works in Obuasi The project will cost US

    作者: Wundef TV
  • Ahafo Earthworks

    10/06/2021  On October 16, 2001, a tailings dam burst at the Tarkwa gold mine in the Wassa West District of Ghana sending thousands of cubic meters of mine waste into the Asuman River and contaminating it with cyanide and heavy metals The Tarkwa mine is operated by Gold Fields Ghana, a South African gold mining company The disaster left more than one thousand people without access

  • Heavy Metal Pollution from Gold Mines: Environmental

    26/10/2016  Highly acidic pH has also been observed in acid mine drainage arising from gold mining activity in other studies [25,26] Elevated levels of As have been reported in gold mine tailings at Obuasi, Ghana Ahmad and Carboo , reported 8305 mg/kg while Bempah et al found a concentration of 1752 mg/kg The Obuasi region has been reported to be one of the regions in the world with elevated

  • AngloGold Ashanti, Obuasi Mine Cuts Sod for

    04/06/2020  AngloGold Ashanti, Obuasi Mine led by its Managing Director, Eric Asubonteng has cut the sod for the construction of a 13 km stretch of road and drainage works in Obuasi The project will cost US

    作者: Wundef TV
  • Underground water quality at Bogoso and its environs, a

    foreign) enterprises are prospecting for gold and another 18 are operating gold mines (Hilson, 2002a, b) The main gold prospects in Ghana occur at Obuasi, Prestea, Bogoso and Tarkwa (Smedley, 1996) Largescale mining in the BogosoPrestea region is conducted as both deeppit and surface mining Cyanidation is the

  • Welcome Bennetta Koomson (Ph D)

    Koomson, B, and Asiam, E K (2013), Assessing the Acid Mine Drainage potential of stockpiled gold bearing sulphide ore; the case of Anglogold Ashanti Mine, Obuasi – Ghana, “Proceedings of the 1st SNOWS Science Conference”, Water and Sanitation – Early Career Scientists Working in Africa, 19 pp

  • AngloGold Ashanti Obuasi Mine LinkedIn

    Obuasi Mine is primarily an underground operation, mining to a depth of 1,500m The mine has been in operation since 1897 (122 years) and has been owned and operated by AngloGold Ashanti since

  • Geology and geochemical patterns of the Birimian gold

    01/04/1993  Table 2 hsts features of mining districts in the area and elsewhere, for comparison The most prominent of the socalled "greenstone" goldbelts of Ghana is the "As hanti"belt (Fig 2) on which are located five major producing gold mines with a total output of over 13,000 kg Au in 1989 (Anon, 1989, Ghana Min erals Commission) The Obuasi mine of Ashanti Goldfields Corporation (AGC) at

  • (PDF) Environmental Impacts of Mining: A Study of

    The Obuasi mine of Ashanti Goldfields Corporation (AGC), which started in 1890, is by far the largest and oldest operation in the country It accounts for more than 50% of Ghana's total annual gold production Other mines operated by the company in Ghana through its expansion programme include the Bibiani, Anyanfuri and Iduapriem mines [3]Diamonds are mined from alluvial sources mainly from

  • Ing Ebenezer Asare Opong, MGhIE Metallurgical

    AngloGold Ashanti Ltd, Obuasi Mine, Ghana Jan 2019 Present 2 years 5 months Providing leadership and direction for the continuous optimisation of the metallurgical and operational performance of the processing department according to budgeted KPIs in a safe and sustainable cost effective manner to eliminate operational risk in order to meet the business strategic objects

    职位: Metallurgical Superintendent at
  • Team – APFD Mining and Envionment Ltd

    AngloGold Ashanti (AGA) Ltd Obuasi mine in Ghana from 2004 to 2010; Mining and Building Company (MBC) in Ghana from 2000 to 2004 ; Manroc Mining Development Company from 1997 to 2000; As a value added worker, Francis always achieves results within set targets and objectives Francis has 22 years career as a professional miner Currently there are five (5) Board of Directors with

  • (PDF) Water Pollution Resulting from Mining Activity ~

    The primary management issues for underground gold mine closure therefore include long term decant risk, acid mine drainage, water pumping and treatment and allocation of responsibility especially in light of the interconnectedness of the mines (Pulles et al, 2005) Acid mine drainage probably presents the single most important factor in dealing with tailings and waste rock and their impact