bauxite land reclamation in brazil

  • Nitrogen-fixing legume tree species for the reclamation of ...

    Reclamation of areas degraded by mining activities. Opencast mining to extract bauxite, iron, cassiterite, manganese and kaolin has caused the destruction of 2000–3000 ha per year of tropical forest in Brazil since the 1960s (Parrota and Knowles 1999). The deforested area is even greater if the large number of areas of sand and clay mining ...

  • Environmental Sustainability | Noranda Bauxite

    Environmental Sustainability. We are committed to sustaining the natural resources that Jamaica has to offer and have well-established practices to minimize the impact on the environment from our mining activities. Some of our sustainable mining practices include: Land Reclamation - Topsoil and endemic and other species are removed and stored ...

  • Practices for rehabilitating bauxite‐mined areas and an ...

     · Mining activities cause severe impacts to soil, the restoration of which requires specific management, and proper evaluation and monitoring. In this research, our objectives were to study recovery strategies and integrate indicators for monitoring the reclamation of an agricultural soil after bauxite …

  • Mining Environmental, Water Shortage and Land Reclamation ...

    The Canadian Land Reclamation Association – Ontario Chapter has announced the winners of the 2020 Tom Peters Memorial Mine Reclamation Industry Award and Student Bursary. The annual awards were established in 2007 to encourage the pursuit of excellence in mine reclamation and to recognize and promote, to the mining industry and environmental ...

  • A case study of ecological restoration at the Xiaoyi ...

     · Land reclamation of mines in China began in the late 1970''s but has been practiced more widely since ''the regulation of land reclamation'' was issued in November 1988 (Gao et al., 1995). Based on data from the National Bureau of Land Administration, it is estimated that at present, the rate of land reclamation is 10%.

  • 1. Introduction

    Soil was collected from both a natural Adinandra belukar forest, a secondary succession after cleared land exploitation of the primary lowland rain forest [9], and a post bauxite mining site, on Bintan Island, Sumatera, on 10 May 2011 (Figure 1).The samples were collected from 3 samplings points at the natural forest site of Adinandra belukar (0°52ʹ21″N, 104°39ʹ02″E) and 3 samplings ...

  • Laterite

    Bauxite ore is the main source of aluminum.: 65 Bauxite is a variety of laterite (residual sedimentary rock), so it has no precise chemical formula. It is composed mainly of hydrated alumina minerals such as gibbsite [Al(OH) 3 or Al 2 O 3. 3H 2 O)] in newer tropical deposits; in older subtropical, temperate deposits the major minerals are boehmite [γ-AlO(OH) or Al 2 O 3.H 2 O] and some ...

  • Side Effects Of Land From Bauxite Mining

    Environmental aspects of bauxite, alumina and aluminium production in brazil208 Кб. Brazil''s largest bauxite mine, the MRN mine in Oriximina in the state of Pará, has an ambitious programme for revegetating mined-out areas.Generally, absorption of gaseous fluoride has more noticeable effects, with plants growing side by side sometimes showing markedly different effects.

  • Practices for rehabilitating bauxite‐mined areas and an ...

    Coffee bean yield was highest in plots with L or G + L receiving PL or PL + CF. We conclude that organic amendments and intercrops are suitable approaches to recover soil following bauxite mining, and soil indicators can be integrated to properly monitor the land reclamation progress.

  • Post Bauxite Mining Land Soil Characteristics and Its ...

     · The remediation of opencast bauxite mines in the natural forests of Indonesia is difficult. We have investigated and contrasted the chemical characteristics of soils from natural forests and mining sites and their effects on plant growth. The soil pH, total carbon (C), nitrogen (N) and available phosphorus (P) concentrations, cation exchange capacity, C/N ratio, and exchangeable K, Na, Mg, Ca ...

  • MP blasts bauxite companies for short-changing farmers ...

     · MP blasts bauxite companies for short-changing farmers. Mirthen Richards, 68, of Berry Hill, Manchester, plants potatoes on reclaimed land. He employs several persons to help in planting and reaping. Richards hopes that more mined-out lands could be restored for farming. A search with the keywords ''bauxite mining'' in the Gleaner archives ...

  • Noranda Bauxite Praised For Land Reclamation Efforts In ...

     · Jamaica''s Mining Minister Robert Montague lauded Noranda Bauxite for its responsible land reclamation efforts last week, noting the success the firm has had in refurbishing former mining sites for use as agricultural and water storage lands. Commenting at Noranda Bauxite''s Agriculture Education Industry Exposition in St. Ann on Thursday, Montague reiterated his government''s …

  • Bauxite in Jamaica

    Bauxite in Jamaica. Bauxite is the ore from which aluminium is made. Jamaica contains some of the largest known deposits of bauxite in the world. The mining areas are located in the western and central parts of the island. After mining, most of the bauxite is carried to …

  • 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 Eucalyptus and Acacia species ...

  • Suitability evaluation for land reclamation in mining area ...

     · The map of the suitability evaluation results of land reclamation in the Gaoqiao bauxite mine is shown in Fig. 2. The above suitability evaluation results are explained as follows: 1) The open-pit slope is unsuitable for planting trees and shrubs, therefore, two kinds of reclamation measures, namely planting vines at the base of slope and ...

  • Rhizobial characterization in revegetated areas after ...

     · In Brazil, to promote the rapid ... In these areas, the replanting is performed on the overburden. The bauxite ore is crushed, cycloned and filtered. At the end of this process, ... The contribution of N2-fixing tree legumes to land reclamation and sustainability in the tropics.

  • Jamaica will Maintain Enviable Position in Bauxite Land ...

     · Jamaica will Maintain Enviable Position in Bauxite Land Reclamation Techniques – Lyew-Ayee Related Executive Director of the Jamaica Bauxite Institute, Parris Lyew-Ayee, has said that Jamaica''s all encompassing approach in pre and post mining bauxite operations was a model for many developing countries with a similarly thriving bauxite sector.

  • Public Summary CBG Expansion

    on Guinea through the expansion of an operating bauxite mine and associated facilities. Bauxite production is of strong strategic economic importance to Guinea, a low-income country, accounting for roughly 20% of the country''s gross domestic product and 80% of exports. CBG, which is 49% owned by the Government of Guinea, is the single largest

  • Victims of bauxite mine in Guinea receive medical care ...

     · In doing so, it is knowingly accepting land grabbing, environmental destruction and human rights violations to secure the supply of raw materials to German industry. About half of the bauxite that Germany imports for the production of aluminum comes from the Sangaredi mine; 93% of all of the bauxite used in Germany comes from Guinea.

  • Opencast Mining Reclamation | SpringerLink

    Nicolau, J.M. 2003. Trends in relief design and construction in opencast mining reclamation. Land Degradation and Development 14:215–226. CrossRef Google Scholar. Parrotta, J.A., and Knowles, O.H. 2001. Restoring tropical forests on lands mined for bauxite: examples from Brazilian Amazon. Ecological Engineering 17:219–239. CrossRef Google ...

  • Bauxite mining and deforestation in Oriximina (Para), Brazil

     · Brazil: The toxic impact of bauxite mining in Oriximiná [click to view] MPF/PA questiona IBAMA sobre regularidade de exploracao mineraria na floresta nacional (flona) Saraca-Taquera. Ecodebate, 21 set. 2012. [click to view] PROCURADORIA REGIONAL DO TRABALHO DA 8th REGIAO.

  • Impact of fertilization on cover crops and microbial ...

     · Otherwise, the impact of fertilizations on soil microbiota or plant–microbe interactions as land reclamation progresses is less understood. To address this issue, we evaluated the impact of organic and chemical fertilization on plants and soil microbial community within the first 36 months of land reclamation in a bauxite‐mined site.

  • ia Geological Survey

    Bauxite was identified at this site in 1926, with samples later analyzed to contain between 29.8 – 39 percent aluminum oxide (Sweet, 1995). The mine was operated until 1951, although less than a carload of bauxite was extracted (Warren and others, 1965).

  • Case Studies | Phibion | tailings management, mine closer

    Alumina. AMC is widely used in the alumina industry. Results from multiple operations have proven that Phibion AMC can deliver: . Shear strength >35 kPa in <42 days from deposition; 50% reduction is TSF area; and. A tailings surface that can be safely accessed and contoured by conventional earthmoving equipment. Download the PDF.

  • Indigenous Brazilians under threat from killings and ...

     · The council was established as a branch of Brazil''s National Conference of Bishops in 1972, a year after the term liberation theology — a Latin American Catholic theological movement that ...

  • Management and use of bauxite residue

    (France), Ouro Preto (Brazil). Examples of old mine storage were: bauxite mines (Kirkvine (Jamaica), Bauxite (USA)), lignite mines (Bergheim), and oil shale quarries (Burntisland). In the case with sites constructed in the past three or four decades, the storage areas have normally been sealed to minimise leakage to the underlying

  • Noranda Bauxite | David D''Addario

     · The company recently received accolades from Jamaica''s mining minister, Robert Montague, for its responsible land reclamation initiatives. Noranda Bauxite is refurbishing its former mining locations to meet water and agricultural needs in the country, and Montague highlighted the impact of utilizing the former mines as water reservoirs.

  • Ant Recolonisation of Rehabilitated Bauxite Mines of Pocos ...

    KEY WORDS: ants, Australia, Brazil, bauxite mining, climate, Formicidae, land rehabilitation. INTRODUCTION The consideration of animals in land reclamation programmes can bring about many useftil benefits. Soil fertility and structure may be impeded if appropriate soil animals are not present, and the nature of plant succession is moulded by

  • Red mud – addressing the problem – Aluminium Insider

     · Toxic dumps and settling pools are a feature alongside all bauxite/alumina plants worldwide, including across Europe, Russia, China, Guinea, Brazil, Jamaica and Australia. In 2015, annual production of smelter and chemical grade alumina was over 115 million tonnes, which, with the exception of some plants in Russia, Iran, and China, was all ...

  • Restoring tropical forests on lands mined for bauxite ...

    The Trombetas bauxite mine is located in the Saraca´-Taquera National Forest on an upland mesa (Saraca´ plateau) at an elevation of 180 m, 65 km northwest of the town of Oriximina´and30 km south of the Trombetas River in western Para´ State, Brazil (1°40%S, 56°27%W; Fig. 1). Mean an-nual rainfall at Porto Trombetas (1970–1994) is

  • Restoration of Forested Lands under Bauxite Mining with ...

    The contribution of bauxite mining to deforestation and land degradation in Guyana is unknown, and this state of affairs is similar to other bauxite-producing countries in South America. Besides this, the numbers and area size of closed and active bauxite mines, the age of bauxite storage areas (overburden dumps), and their status, among other ...

  • Bauxite industry has left legacy of hydrologic and ...

     · Bauxite industry has left legacy of hydrologic and ecological disruption in Linden, responsible agencies must take action ... The lack of concerted mine reclamation and land …

  • Mining and Refining – Process

    Before mining can commence the land needs to be cleared of timber and vegetation. Alongside this process may be the collection of seeds and/or saplings, for inclusion in a seedbank, which will form the basis of post-mining revegetation of the site. Next the top soil is removed and is usually also stored for replacement during rehabilitation.

  • The Impact of Nickel Mining on Soil Properties and Growth ...

     · Opencast nickel mining is common in natural forests of Indonesia. However, rehabilitation of postmining degraded land is difficult. We investigated the effect of opencast nickel mining on soil chemical properties and the growth of two fast-growing tropical tree species, Falcataria moluccana and Albizia saman . Soil was collected from post-nickel mining land and a nearby natural forest.

  • SciELO

    The study was carried out in a rehabilitated bauxite mine (21° 3'' 57.84" S, 42° 35'' 42.38" W) in the municipality of Miraí, southeastern Minas Gerais, Brazil (Figure 1A). The climate of the region is subtropical in altitude (Cwb) according to the Köppen classification with two well-defined seasons, namely a rainy summer and a dry winter.

  • Bauxite | Guyana Then And Now

     · Guyana, China and now Brazil hold the distinction as the world supplier of RASC bauxite. THE OPENING OF THE ALUMINA PLANT IN 1961. The Alumina Plant opened Tuesday, March 28, 1961. Minister of Trade and Industry, Dr. Cheddie Jagan, declared Demba''s $65 million Alumina Plant open with the turn of the control lever.