The Ore Tailings Dam Rupture Disaster in Mariana, Brazil

the impacts seem far from having an end. The rupture of the Fundão iron ore tailings dam, belonging to the Samarco mining company, controlled by Vale do Rio Doce and BHP Billiton, took place in the Bento Rodrigues sub-district of Mariana, in the State of Minas Gerais, Brazil, causing a flood of ore tailings. After invading the Doce

Tracing iron ore tailings in the marine environment: An

Oct 01, 2020 On November 5th, 2015, the failure of the Fundao tailing dam of Samarco S/A, located in the Doce River basin (), municipality of Mariana, state of Minas Gerais (MG, Brazil), leaked about 43.7 million m 3 of iron ore tailings (do Carmo et al., 2017; Renova, 2019).The leaked tailings followed the course of the Carmo river and subsequently the Doce River ().

Brumadinho dam collapse is the world's worst since Mariana

Jan 27, 2019 In 2015, the Mariana dam spilled almost 50 million cubic meters of iron ore tailings, killing 19 people. Thirty years prior, 268 people were killed in

Samarco Tailings Dam Failure in Mariana, Minas Gerais

To the Brazilian policy makers (both in government and in the neoliberal opposition) the tailings dams failure at Samarco's Germano mine (Samarco is owned by Vale and BHP Billiton) in Mariana (not far from Ouro Preto), in Minas Gerais’ iron belt on 5th November 2015 was something of a shock. This is one of the largest iron ore mines in the world.

Condor Blanco Mines closes on Marianas iron ore Scoping

Nov 12, 2013 Condor Blanco Mines is to capitalise on high iron ore prices by moving through processing due diligence as well as the soon to be released results of a Scoping Study for the Marianas Iron Tailings

The Ore Tailings Dam Rupture Disaster in Mariana, Brazil

the impacts seem far from having an end. The rupture of the Fundão iron ore tailings dam, belonging to the Samarco mining company, controlled by Vale do Rio Doce and BHP Billiton, took place in the Bento Rodrigues sub-district of Mariana, in the State of Minas Gerais, Brazil, causing a flood of ore tailings. After invading the Doce

Tracing iron ore tailings in the marine environment: An

Oct 01, 2020 On November 5th, 2015, the failure of the Fundao tailing dam of Samarco S/A, located in the Doce River basin (), municipality of Mariana, state of Minas Gerais (MG, Brazil), leaked about 43.7 million m 3 of iron ore tailings (do Carmo et al., 2017; Renova, 2019).The leaked tailings followed the course of the Carmo river and subsequently the Doce River ().

Condor Blanco Mines closes on Marianas iron ore Scoping

Nov 12, 2013 Condor Blanco Mines is to capitalise on high iron ore prices by moving through processing due diligence as well as the soon to be released results of a Scoping Study for the Marianas Iron Tailings

Mariana dam disaster and similar events Frankensaurus

The Mariana dam disaster, also known as the Bento Rodrigues or Samarco dam disaster, occurred on 5 November 2015, when the Fundão tailings dam at the Germano iron ore mine of the Samarco Mariana Mining Complex near Mariana, Minas Gerais, Brazil, suffered a catastrophic failure, resulting in flooding that devastated the downstream villages of Bento Rodrigues and Paracatu de Baixo (40 km (25 mi

The Mariana mining disaster A journey through Brazil's

The area’s economy is mostly based on mining. Samarco a joint venture between Brazil’s Vale and Anglo-Australian company BHP Billiton is one of the region’s biggest employers, mining iron ore and depositing the resultant waste in the nearby Fundao dam. 60 million cubic metres of iron ore waste and mud hit the town of Bento Rodrigues.

Understanding the Environmental Impact of a Mine Dam

The rupture of the Fundão mine dam in Mariana municipality, Minas Gerais State, Brazil, spilled the tailings across the Doce . River basin. These tailings, composed of residues discarded from the beneficiation of iron ore, are rich in SiO. 2. and Al. 2. O. 3, as well as some ether amine compounds and NaOH. The aim of this study

(PDF) The Biggest Mining Disaster in the World in Mariana

PDF The need to mine iron worldwide and especially South American countries like Brazil created an opportunity for the two biggest mining companies in Find, read and cite all the research

Condor Blanco signs Heads of Agreement for production

Oct 03, 2013 processing of Iron Ore to be produced from Condor’s 50%-owned Marianas Tailings Project in Northern Chile. Lacerta is a local, well established, mining contractor that currently operates magnetite tailings re-processing projects in northern Chile. The Marianas

(PDF) Generation and Treatment of Iron Ore Tailings

Today many types of tailings are generated in the mining operations. Particularly, in the iron ore industry, although 99% of the generated tailings are composed by non-toxic elements, it came into

Tailings Wikipedia

Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore.Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.. The extraction of minerals from ore can be done two ways: placer mining, which uses water

Communities resist Chinese mining company's iron ore

Dec 18, 2019 The mega dam planned by Sul Americana de Metais could store up to 845 million cubic metres of tailings. That is eight times more than that authorised for the dam in Mariana (also in Minas Gerais) which held waste for the Samarco mining company and ruptured in November 2015, killing 19 people and destroying the Doce River.

Samarco Tailings Dam Failure in Mariana, Minas Gerais

In 2014, Samarco produced 25 million tons of iron ore in Mariana, and a similar amount of waste. Production increased 9 million tons over previous year, to compensate for lower prices. Some early reports cited in The Financial Times put the liability for the tailings dams failure at one billion USD.

Mariana Dam Disaster PGMBM

The liquid, comprised of iron ore and water, made its way through various waterways, flowing into villages, destroying landscapes and indiscriminately damaging infrastructure and wildlife. It travelled 700km to the Atlantic Ocean destroying water supplies,

Brazil dam disaster: firm knew of potential impact months

Mar 01, 2018 When the Fundão tailings dam failed on 5 November 2015, it unleashed about 40m litres of water and sediment from iron ore extraction in a wave that polluted the near Mariana

Samarco Tailings Dam Failure in Mariana, Minas Gerais

In 2014, Samarco produced 25 million tons of iron ore in Mariana, and a similar amount of waste. Production increased 9 million tons over previous year, to compensate for lower prices. Some early reports cited in The Financial Times put the liability for the tailings dams failure at one billion USD.

Mariana Dam Disaster PGMBM

The liquid, comprised of iron ore and water, made its way through various waterways, flowing into villages, destroying landscapes and indiscriminately damaging infrastructure and wildlife. It travelled 700km to the Atlantic Ocean destroying water supplies,

Communities resist Chinese mining company's iron ore

Dec 18, 2019 The mega dam planned by Sul Americana de Metais could store up to 845 million cubic metres of tailings. That is eight times more than that authorised for the dam in Mariana (also in Minas Gerais) which held waste for the Samarco mining company and ruptured in November 2015, killing 19 people and destroying the Doce River.

Condor Blanco Mines closes on Marianas iron ore Scoping

Nov 12, 2013 Condor Blanco Mines is to capitalise on high iron ore prices by moving through processing due diligence as well as the soon to be released results of a Scoping Study for the Marianas Iron Tailings

The Economist explains The danger of tailings dams The

Jan 28, 2019 One, jointly owned by Vale and BHP (an Anglo-Australian giant) near the town of Mariana in Brazil, collapsed in 2015, and potential penalties being

(PDF) The Biggest Mining Disaster in the World in Mariana

PDF The need to mine iron worldwide and especially South American countries like Brazil created an opportunity for the two biggest mining companies in Find, read and cite all the research

Brazil dam disaster: firm knew of potential impact months

Mar 01, 2018 When the Fundão tailings dam failed on 5 November 2015, it unleashed about 40m litres of water and sediment from iron ore extraction in a wave that polluted the near Mariana

Fundão tailings dam failures: the environment tragedy of

Jul 01, 2017 Introduction. One year after the collapse of the Fundão tailings dam, more than 43 million m 3 (Samarco, 2016a) of iron ore tailings are still causing environmental damage, polluting 668 km of watercourses from the Doce River Basin to the Atlantic Ocean. The volume of pollutants and the extent of ecosystems affected have assumed unprecedented proportions, involving the Brazilian Atlantic

Samarco dam collapse: one year on from Brazil's worst

Oct 15, 2016 This deeply technical study concluded that the dam collapsed after the liquefaction of iron ore mining waste caused by the interaction between two types of tailings sands and slimes and

Tailings

The tailings pond water is then recycled back into the operation for reuse and the tailings may be reclaimed so as to minimise the impact on the environment. The construction method is important to ensure safe operation of a facility. Tailings storage facilities follow one of three wall construction designs, or hybrids of these.

19 December, 2013 For personal use only ASX

Dec 19, 2013 19 December, 2013 Update: Marianas Iron Tailings Project, Chile. ASX Release Stock Code: CDB Highlights • Marianas Iron Tailings project 200 tonne bulk iron ore sample being processed with final results due before the end of 2013.

Deja Vu Brumadinho and Mariana Dam Disasters

The Fundão Dam was a tailings dam, built to accommodate the waste resulting from the extraction of iron ore from the extensive Germano mine, a mine owned and operated jointly by Vale SA and BHP Billiton. This tailings dam was constructed in the hills near the village and subdistrict of Bento Rodrigues, located 8.7 miles north of Mariana city.

Control and Management of Dams Vale

Feb 23, 2021 70% of iron ore production with dry processing by 2024; US$ 1.8 billion in investments to increase the use of filtration and dry stacking by an additional 50% between 2020 and 2024; Increased development of new technologies, such as dry iron ore magnetic separation, from New Steel (company acquired in 2018). Viable Solutions. Dry processing

SPECIAL REPORT: Why is mining still so dangerous

May 20, 2019 After the Mariana and Brumadinho tragedies, trade unions, both in Brazil and all around the world, have taken a number of different initiatives. In 2015, the Samarco dam collapse in Brazil released 33 million cubic metres of iron ore tailings slurry into the environment, killing 19 people, displacing 600 families and contaminating waterways