Archive for the ‘ENVIRONMENT’ Category

BRAZILS CARAJAS MINE,BILLIONS TO BE SPENT & THE EFFECTS ON THE LOCAL AWA NATIVE TRIBE

Monday, July 30th, 2012

IRON ORE IN BRAZIL & THE BILLIONS TO BE SPENT HAS CONCERNS FOR LOCAL NATIVE TRIBES & THE CARNIVOROUS BATS IN CAVES.

World biggest iron ore producer Vale over the last few days “played down fears” that the planned expansion of its Carajas mine – a truly monstrous  project that will see the Brazilian giant commit to almost $20 billion over the next several years – would have an ill effect on the local Awá tribe

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AFP quotes Survival International, an indigenous peoples rights group, as saying the Brazilian firm’s plans to have trains as long as two kilometres run in both directions to its port in a remote northern section of the Amazon forest will only heighten the pressure on the still nsurviving members of “The planet’s most threatened tribe”.

The rights group said the Carajas mine and railways “devastated the Awa tribe in the early 1980′s by opening their land up to a number of settlers, ranchers and loggers.”

A Brazilian government survey cited by Survival International estimates there could be “up to 4,500 invaders, ranchers, loggers and settlers” occupying just one of the four territories inhabited by the Awa, whose total population stands at less than 450.

The rights group has enlisted the help of British actor Colin Firth who narrates a short film about the plight of the Awá.
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In the film, the Oscar-winner says: “The Awá’s forest is being illegally cut for timber. When the loggers see these natives, they kill them. Their bows and arrows are no match for guns. And at any other time in history, that’s where it would end. Another people wiped off the face of the Earth, forever. But we’re going to make sure the world doesn’t allow that to happen.”

The area also hosts some 2,000 caves that scientists regard as “potentially precious features” because of the high incidence of iron and unusual biology: “One caveexplored, hosts four species of bat – only one of them carnivorous, luckily – and excavations in its floor have revealed evidence of human habitation as long as up to maybe 9,000 years ago” according to a BBC report.

The operations manager of the mine, Jaymilson Magalhaes, tells [the BBC] that the mine complex only covers about 3% of the area of the national forest and that before any digging can start, the company has to have an adequate  restoration plan to return the area to its original state.

That includes using spoil to fill in the mines once they are exhausted to reshape the topography – a process we witnessed in one small area – and undertake a massive replanting programme using native species of vegetation.

The chronically understaffed Brazilian conservation agency only has 1a dozen rangers in that area of the Serra Sul Amazon region “but Vale pays for a further 80, plus cars, boats,equipment and the use of a helicopter, all vital to guard against illegal logging and poaching.”

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According to The Guardian, Ibama , Brazil’s environment agency, “has fewer than 1,000 officers on the ground at any one time across a country nearly four times the size of western Europe”.

Vale (NYSE:VALE) was granted a preliminary environmental license for the lowly-named “S11D” mine in June.

The Carajas complex is the largest iron ore deposit in the world with 7.2 billion tonnes in proven and provable reserves – that’s a more than  $800 billion contribution  to the Brazilian economy at today’s prices.

S11D would not only lower Vale’s overall costs at the operation, but drastically improve the average quality of the ore that it mines.

Vale said in a statement that it plans to spend $8 billion to develop the mine and build a new processing plant, as well as $11.4 billion to expand the railroad and local port to allow it to ship the steel-making ingredient to important markets in Asia & the rest of the world using its massive Valemax carriers (400,000 deadweight tonnes).
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To ameliorate the planned works’ environmental impact, Vale said it would transport iron ore from the mine to the processing plant via a massive distance 37km of conveyer belts instead of using trucks. At the moment the mine mills 300,000 tonnes per day.

The Rio de Janeiro-based company added S11D would produce 90 million metric tonnes of iron ore – adding some 30% to Vale’s current output – and begin operations in 2016.

This week Vale’s earnings came in at $2.7 billion, down 59% from $6.5 billion in 2011 and its lowest level in more than two years. Profits sank 30%.

The Q2 results came only days after CEO Tito Martins announced he was leaving the company, marking the fifth top-level substitution in the past eight months at Vale.

Sourced & published by Henry Sapiecha

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CORROSIVE ACID ACCIDENT WITH RIO TINTO

Saturday, March 26th, 2011

Sulphuric acid spills at Rio Tinto site

Kym Agius

March 25, 2011

Queensland’s environment department says an alumina refinery owned by Rio Tinto has spilt sulphuric acid into a creek in central Queensland.

Rio Tinto notified the Department of Environment and Resource Management that the spill occurred at the Yarwun alumina refinery on Sunday during heavy rain.

DERM spokesman Joe Pappalardo said an unknown amount of the acid was released into Boat Creek when the site’s stormwater system overflowed in heavy rain.

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Urgent inspections and water sampling has been done at Boat Creek and nearby Port Curtis, at Gladstone.

“Inspections by DERM officers … have found no evidence of environmental harm suggesting that the recent rain and high tides in Boat Creek have helped to dilute the acid and flush it through the system relatively quickly,” Mr Pappalardo said.

“Investigations are continuing, however at this stage DERM has found no evidence that environmental harm has been caused by the spill.”

Investigators are looking at the cause of the spill, how much sulphuric acid was involved and the actions taken by Rio Tinto.

Mr Pappalardo said it looks as though it’s been a lucky escape for the environment.

“If it’s confirmed that a large amount of sulphuric acid has been released without significant environmental harm, then DERM would consider that very fortunate indeed.”

“The risk is unacceptable.”

A Rio Tinto spokesman said it is estimated that 3000 litres sulphuric acid was released when a drain valve failed.

“The vast majority of the sulphuric acid was contained within the on-site spill capture system,” the spokesman said.

“Heavy rain on Sunday resulted in a small amount of the sulphuric acid and seawater mix being discharging into a local creek.”

The drain valve has been removed from service and will remain out of operation until repaired and investigations are completed.

AAP- Sourced & published by Henry Sapiecha


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