mining pollution Articles

  • The effects of mining pollution on subtidal habitats of northern Chile

    Mining is the most important commercial activity in Chile, producing more than 60% of the total national income. In northern Chile, where mining extraction is concentrated, solid and liquid pollutants resulting form copper and iron ore processing are discharged to the ocean. The studies on the effects of mining on coastal marine environments in Chile mainly consist of the evaluation of heavy ...


    By Inderscience Publishers

  • Mine pollution and salt marsh vegetation communities

    Estuaries within Cornwall have been accepting metal-rich tailings and water from mining since the Bronze Age. Previous work at Camborne School of Mines has indicated that the floristic composition within contaminated salt marshes differs from characteristic British assemblages as defined by the National Vegetation Classification (NVC). Two communities not listed in the NVC system were discovered ...


    By Impact Ecology

  • Coal Mining and Production Industry - Pollution Prevention Guidelines

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...


    By The World Bank

  • Kyanite Mining and Effective Air Pollution Abatement

    Kyanite Mining Corp. is a family-owned and operated mining company that specializes in the extraction and beneficiation of kyanite (3Al2O3*3SiO2) and its calcined derivative, mullite. KMC ships both minerals worldwide for use as “super-duty” additives in a variety of ceramic and refractory products. Kyanite is used in these products because of it resistance to heat, abrasion and corrosive ...


  • Optimising the Rehabilitation of polluted Mine Tailings and Water by SupaZorb

    To date the polluted acid mine drainage (AMD) – the second biggest environmental problem of the world - from South Africa’s gold mines, was characterised and treated by the precipitation of heavy metals with lime and sulphates, by means of iron exchange. The chemical treatment with expensive and toxic caustic soda (Sodium Hydroxide, NaOH) is to lift the pH, in order to reduce the corrosion on ...


    By SupaZOrb

  • Mine Water

    THis article shows the use of the Cogent PDV6000plus as a portable analyser used to monitor metal concentration in river and lake water which is polluted by acid mine water from abandoned mine ...

  • Pilot test of pollution control and metal resource recovery for acid mine drainage

    The study was undertaken in order to recover the metal resources from acid mine drainage (AMD). A 300 m3/d continuous system was designed and fractional precipitation technology employed for the main metals Fe, Cu, Zn, and Mn recovery. The system was operated for six months using actual AMD in situ. The chemicals' input and also the retention time was optimized. Furthermore, the ...


    By IWA Publishing

  • Base Metal and Iron Ore Mining Industry - Pollution Prevention Guidelines

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution missions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...


    By The World Bank

  • Cadmium and zinc in polluted mining soils and uptake by plants (El Losar mine, Spain)

    Total cadmium (Cd) and zinc (Zn) contents in soils around mine spoils ranged from 1.91?80 and 98?9200 mg/kg with an arithmetic mean of 28 and 4079 mg/kg, respectively. These amounts are much higher than the background levels. Higher concentrations of the labile form of Cd (20.7%) and moderate levels for Zn (7.6%) indicate a high environmental threat by these toxic elements. Cadmium contents in ...


    By Inderscience Publishers

  • Concentrations of heavy metals in plants grown on polluted mining soils (Loma Charra mine, Spain)

    Evaluation of heavy metal accumulation in plants is of environmental importance due to its toxicity effects in humans and other biota. Soils and plants were sampled in a polluted site around a Pb-Zn(Cd) mine. Total metal contents in the soil indicate a gross degree of pollution in relation to background levels. Soil Cd shows high mobility and availability and consequent high environmental risk. ...


    By Inderscience Publishers

  • Optimising the rehabilitation of polluted mine tailings and water by an organic medium passive acid mine drainage treatment in South Africa

    Up to the present polluted Acid Mine Drainage (AMD) also known as Acid Rock Drainage (ARD) from South Africa's gold mines was treated by the precipitation of heavy metals with lime and expensive caustic soda where the residues accumulate in the treated water. This water then is dispersed into wetlands for natural remediation. The environmental damage to soil is irreversible and can sterilise soil ...


    By Inderscience Publishers

  • Are mining waste disasters inevitable?

    On 5 November 2015 the dam of an iron ore tailings management facility in Bento Rodrigues, Brazil, suffered a catastrophic failure and flooded the area. The immediate consequences were dire: the accident killed at least 11 people, injured over a dozen more and left more than 500 people homeless. However, this is just the start: the environmental impact of the Bento Rodrigues dam disaster, with ...

  • Appraising the Global Mercury Project: an adaptive management approach to combating mercury pollution in small-scale gold mining

    This paper appraises the initiatives of the Global Mercury Project (GMP); a project designed to minimise the impacts of mercury use in the artisanal and small-scale gold-mining (ASM) sector. The environmental and health impacts of mercury use at ASM sites have local, national and global implications that need to be reconciled with the benefits of poverty reduction and economic opportunity. The ...


    By Inderscience Publishers

  • Study of the transit and attenuation of pollutants in a water reservoir receiving acid mine drainage in the Iberian Pyrite Belt (SW Spain)

    The Sancho Dam was built in 1962 and is fed by the Meca River, which receives water from subsidiary tributaries affected by acid mine drainage (AMD), mostly generated by the abandoned Tharsis mining complex. This study focuses on the hydrochemical relations observed between the water at the entrance of the reservoir and a point located further away, specifically at the dam. The main aim is to ...


    By IWA Publishing

  • Geochemical modelling of the evolution and fate of metal pollutants arising from an abandoned gold mine tailings facility in Johannesburg

    Analytical techniques were combined with geochemical modelling to study the release mechanisms of pollutants from an abandoned gold mining tailings storage facility near Johannesburg. Inverse modelling of sampled tailings pond water and experimental single extractions using various solutions indicated which combination of naturally occurring leaching solutions were likely to give rise to the ...


    By IWA Publishing

  • Environmental Profile of the Metal Mining Industry

    Introduction The EPA's Office of Compliance has developed a series of profiles or notebooks containing information on selected major industries. These notebooks, which focus on key indicators that holistically present air, water, and land pollutant release data, have been thoroughly reviewed by experts from both inside and outside the EPA. What will you find in this ...

  • Mining Companies That Manage Their Environmental Impact

    There are significant environmental challenges associated with the mining and mineral exploration industry, regardless of the material. From diamonds and stone to ore and other metalliferous materials, the most critical environmental impacts are energy use, land disturbance, carbon emissions, and pollution from mining activity and subsequent ...


    By Alaska Structures

  • Effects of climate change on the toxicity of soils polluted by metal mine wastes to Enchytraeus crypticus

    The present study aimed to assess the effects of climate change on the toxicity of metal‐polluted soils. Bioassays with Enchytraeus crypticus were performed in soils polluted by mine wastes (mine tailing, forest and watercourse) and under different combinations of temperature (20 and 25 °C) and soil moisture content (50 and 30% of the soil water holding capacity). Survival and reproduction ...


    By John Wiley & Sons, Ltd.

  • Closures of mine a new challenge for Romania

    AbstractThe mining activity is one of the oldest activity in Romania, dating from the year 100 B.C. The gold and silver ores represented one of the riches of our country. In time the economic content of metals diminuend, and the ore mines become non profitable. Due to this situation the best option of the State was the closure and ecological rehabilitation of the mines.The steps for the ...


  • Deep sea mining: exploration is inevitable

    Despite concern over adverse impacts, deep marine mineral exploration is set to become a global industry, says geologist Chris Yeats. Global demand for metals continues to grow, fuelled largely by increasing populations and the industrialisation and urbanisation of China and India. To meet this demand, the international ...


    By SciDev.Net

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