bauxite mining rehabilitation

bauxite mining rehabilitation

Mining and Refining – Rehabilitation

Bauxite mining operations aim to restore the pre-mining environment and respective conditions; returning the original ecosystem as close as possible, in terms of structure, function and dynamics and creating a land-use to benefit the local community. Most operations rehabilitate used areas progressively as mine pits are closed. Mining leases and concessions are linked with rehabilitation ...

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Rehabilitation after bauxite mining in south-western ...

01/04/1985  Rehabilitation after bauxite mining in south-western Australia. Landscape Plann., 12: 75--92. Alcoa of Australia Ltd. mines bauxite in the Darling Ranges of south-western Australia. The company must operate within major environmental constraints, associated with competitive land uses, to ensure on-going access to ore reserves. A programme has been designed to manage environmental aspects

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Mining and Refining – Bauxite Residue Management

The most important barrier to remediation, use and long term sustainability of bauxite residue management is its high alkalinity. Bauxite residues and the runoff from storage areas can be treated to reduce their pH, further reducing the risk of environmental impacts and facilitating rehabilitation of the disposal area after closure.

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Australian Bauxite Mine Rehabilitation - YouTube

19/11/2019  Alcoa is a recognised world leader in mine site rehabilitation.

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REHABILITATION OF DEGRADED SITES - Unasylva 207

Mine rehabilitation should establish land use values equal to or better than those existing before mining. Mining of bauxite by tracked excavators and 105 tonne trucks - ALCOA. The science and technology of land rehabilitation and restoration ecology have advanced to a high level, allowing rehabilitation to meet complex and multiple objectives. Selection of post-mining land use objectives ...

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Rehabilitation at Bauxite Mine site continues – FBC News

11/06/2020  Bauxite mining in Nawailevu ceased almost two years ago however the company responsible for the mining Aurum Exploration is continuing rehabilitation works on the site. Usamate says the company has planted approximately 160,000 pine trees which will benefit the iTaukei landowners in the near future.

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Restoration of Forested Lands under Bauxite Mining with ...

Two rehabilitation cases in bauxite mining in Minas Gerais, Brazil (Miranda et al., 2014) and Los Pijíguaos, Venezuela (Gordon et al., 2011) demonstrate the importance of nurse trees. These trees were planted as part of a restoration technique to facilitate the arrival of native species from the surrounding ecosystems. They germinated in different substrate conditions, and the identified ...

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Appendix A Completion Criteria for 2016 onwards Current ...

(MMPs), i.e. Five Year Mine Plans that contain mining and rehabilitation programs. Programs to manage visual aspects of the mining, where relevant, are included in the annual Mining and Management Programs for approval through the MMPLG. Implementation of aesthetic programs for prescribed areas. 1.4.2 Accessibility Access requirements for the crusher region have been agreed

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Completion criteria and overview of area certification ...

Alcoa’s bauxite mine rehabilitation Alcoa presently operates the Huntly and Willowdale bauxite mines in the Northern Jarrah Forest in Western Australia. A third mine at Jarrahdale ceased operations in 1998, with final rehabilitation completed in 2001. On average approximately 600 hectares of forest are currently cleared, mined and rehabilitated each year. Rehabilitation prescriptions have ...

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Mining and Refining – Process - World Aluminium

Sustainable Bauxite Mining Guidelines (2018) - Indonesian. Case Studies . Aluminium is the most abundant metal in the earth’s crust. The aluminium-containing bauxite ores gibbsite, böhmite and diaspore are the basic raw material for primary aluminium production. Proven, economically viable reserves of bauxite are sufficient to supply at least another 100 years at current demand. While ...

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Rehabilitation after bauxite mining in south-western ...

01/04/1985  Rehabilitation after bauxite mining in south-western Australia. Landscape Plann., 12: 75--92. Alcoa of Australia Ltd. mines bauxite in the Darling Ranges of south-western Australia. The company must operate within major environmental constraints, associated with competitive land uses, to ensure on-going access to ore reserves. A programme has been designed to manage environmental

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Hydrological response to bauxite mining and

01/08/2017  The hydrological response to bauxite mining in the jarrah forest could differ from other land uses such as timber harvesting or clearing for agriculture, since mining involves excavation of the upper regolith in addition to changes in forest cover due to clearing and subsequent rehabilitation. Three catchments, one subject to mining, a second subject to an intensive forest thinning treatment ...

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Restoration of Forested Lands under Bauxite Mining with ...

Two rehabilitation cases in bauxite mining in Minas Gerais, Brazil (Miranda et al., 2014) and Los Pijíguaos, Venezuela (Gordon et al., 2011) demonstrate the importance of nurse trees. These trees were planted as part of a restoration technique to facilitate the arrival of native species from the surrounding ecosystems. They germinated in different substrate conditions, and the identified ...

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Growth, Biomass and Carbon Stocks in Forest Cover

26/11/2019  Growth, Biomass and Carbon Stocks in Forest Cover Planted in an Area of Bauxite Mining in Rehabilitation. ABSTRACT. Forest cover in areas degraded by mining is an alternative way of mitigating CO 2 concentrations in the atmosphere by fixing C in tree biomass. This study evaluated the growth and C stocks of forest cover in an area of bauxite mining with four sources of fertilizer. Height

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Sustainable Bauxite Mining Guidelines

18/05/2018  The principles of sustainable bauxite mining practices are common to the mining of other minerals and are focused on reducing impacts on biodiversity, land and water; on promoting community engagement and on integrated rehabilitation and closure activities. Developing and integrating practices across safety, environment, economy, efficiency and the community can also improve sustainability of ...

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Appendix A Completion Criteria for 2016 onwards Current ...

(MMPs), i.e. Five Year Mine Plans that contain mining and rehabilitation programs. Programs to manage visual aspects of the mining, where relevant, are included in the annual Mining and Management Programs for approval through the MMPLG. Implementation of aesthetic programs for prescribed areas. 1.4.2 Accessibility Access requirements for the crusher region have been agreed

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Completion criteria and overview of area certification ...

Alcoa’s bauxite mine rehabilitation Alcoa presently operates the Huntly and Willowdale bauxite mines in the Northern Jarrah Forest in Western Australia. A third mine at Jarrahdale ceased operations in 1998, with final rehabilitation completed in 2001. On average approximately 600 hectares of forest are currently cleared, mined and rehabilitated each year. Rehabilitation prescriptions have ...

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Alcoa -- Sustainability - Environmental Management

Mining rehabilitation and bauxite residue management are two key environmental priorities. Mining rehabilitation Alcoa is a recognised world leader in mine site rehabilitation (view video to learn more). Our key objective is to re-establish a self-sustaining jarrah forest ecosystem that fulfils forest land uses that include conservation, timber production, water catchment and recreation. Our ...

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Restoration Resource Center Australia: Returning the ...

The mine pits range in size from one hectare to tens of hectares. Alcoa has been rehabilitating its bauxite mines since 1966; today some 550 hectares are mined and rehabilitated annually. The technology of rehabilitation has been improved continuously over the years – from plantations of exotic pine trees to a sophisticated state-of-the-art ...

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MINE REHABILITATION

the mine rehabilitation strategy and closure plan. Post-mining land use planning Rehabilitation security bonds balances the needs of government, community and traditional custodians engaged in the planning process. The plan requires government approval before mining begins and is refined over the life of a mine operation. Topsoil revegetation Soil is placed over the shaped landform. Plant ...

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Hydrological response to bauxite mining and

01/08/2017  The hydrological response to bauxite mining in the jarrah forest could differ from other land uses such as timber harvesting or clearing for agriculture, since mining involves excavation of the upper regolith in addition to changes in forest cover due to clearing and subsequent rehabilitation. Three catchments, one subject to mining, a second subject to an intensive forest thinning treatment ...

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Mining and rehabilitation SpringerLink

Landscaping and revegetation practices used in rehabilitation after bauxite mining in Western Australia. Reclaim. Rev. 2: 123–132. Google Scholar. Tacey W. H., Glossop B. L., 1980. Assessment of topsoil handling techniques for rehabilitation of sites mined for bauxite within the jarrah forest of Western Australia. J. Appl. Ecol. 17: 195–251. CrossRef Google Scholar. Tippett, J. T ...

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Sustainable Bauxite Mining Guidelines

18/05/2018  The principles of sustainable bauxite mining practices are common to the mining of other minerals and are focused on reducing impacts on biodiversity, land and water; on promoting community engagement and on integrated rehabilitation and closure activities. Developing and integrating practices across safety, environment, economy, efficiency and the community can also improve sustainability of ...

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Ant Recolonization of Rehabilitated Bauxite Mines at ...

Ant species were sampled in three rainforest and 10 rehabilitated bauxite mine plots at Trombetas, in the tropical monsoonal region of Brazil. Rehabilitation ranged from 0 to 11 years in age and was mainly performed by planting mixed native forest tree species. One plot supported single-species blocks of Australian Eucalyptuis and Acacia species. Two hundred and six ant species were recorded ...

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Growth, Biomass and Carbon Stocks in Forest Cover

26/11/2019  Growth, Biomass and Carbon Stocks in Forest Cover Planted in an Area of Bauxite Mining in Rehabilitation. ABSTRACT. Forest cover in areas degraded by mining is an alternative way of mitigating CO 2 concentrations in the atmosphere by fixing C in tree biomass. This study evaluated the growth and C stocks of forest cover in an area of bauxite mining with four sources of fertilizer. Height

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CBG Bauxite (Aluminium Ore) Mining Operations -

Treatment of the run-of-mine bauxite consists mainly of crushing and drying before shipment. Ore wagons are tipped individually, the material being crushed to –100mm before stockpiling. After reclaim using bucket-wheel stacker-reclaimers, the ore is dried from an average of 12.5% moisture to 6.7% for shipping. Dried ore is held in a 150,000t-capacity covered stockpile, and is then reclaimed ...

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Decommissioning Western Australia's First Bauxite Mine:

17/07/2007  The first of Alcoa's bauxite mines in Western Australia, however, was at Jarrahdale, where mining operations commenced in 1963 and continued until rehabilitation was completed in May 2001. The 4090‐ha mine produced some 168 million tons of bauxite from 1963 to late 1998 when the mine ceased production. Many of the key lessons in developing Alcoa's current rehabilitation methods

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(PDF) Reliable mine rehabilitation and closure to

The scale of the mining industry and its capacity to cause environmental damage means that there is a need to improve the way mine rehabilitation is currently undertaken. We suggest that this ...

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MINE REHABILITATION

the mine rehabilitation strategy and closure plan. Post-mining land use planning Rehabilitation security bonds balances the needs of government, community and traditional custodians engaged in the planning process. The plan requires government approval before mining begins and is refined over the life of a mine operation. Topsoil revegetation Soil is placed over the shaped landform. Plant ...

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The bauxite industry — the other side

02/07/2017  In the early days of bauxite mining no occupational health and safety programmes or legal framework existed to guide the workers in the industry. This changed gradually over the years as new ...

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