International

Chilean scientist plans to clean up mining with ‘metal eating’ bacteria

AFP

Starving microorganisms capable of surviving in extreme conditions have already managed to “eat” a nail in just three days.

In Chile, a scientist is testing “metal-eating” bacteria she hopes could help clean up the country’s highly-polluting mining industry.

In her laboratory in Antofagasta, an industrial town 1,100-kilometers north of Santiago, 33-year-old biotechnologist Nadac Reales has been carrying out tests with extremophiles — organisms that live in extreme environments.

Reales came up with her idea while still at university as she was conducting tests at a mining plant using microorganisms to improve the extraction of copper.

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“I realized there were various needs in the mining industry, for example what happened with the metallic waste,” she told AFP.

Some metals can be recycled in smelting plants but others, such as HGV truck hoppers that can hold 50 tons of rock, cannot and are often discarded in Chile’s Atacama desert, home to the majority of the country’s mining industry.

Chile is the world’s largest producer of copper, which accounts for up to 15 percent of the country’s GDP, resulting in a lot of mining waste that pollutes the environment.

In her research, Reales, who now runs her own company Rudanac Biotec, concentrated on iron-oxidizing bacteria called Leptospirillum.

She extracted the bacteria from the Tatio geysers located 4,200 meters above sea level, some 350 kilometers from Antofagasta.

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The bacteria “live in an acidic environment that is practically unaffected by relatively high concentrations of most metals,” she said.

“At first the bacteria took two months to disintegrate a nail.”

But when starved, they had to adapt and find a way of feeding themselves.

After two years of trials, the result was a marked increase in the speed at which the bacteria “ate,” devouring a nail in just three days.

– Surprising benefit –

Reales says “chemical and microbiological tests” have proved the bacteria are not harmful to humans or the environment.

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“We’ve always seen a lot of potential in this project that has already passed an important test in the laboratory,” said Drina Vejar, a microbiologist who is part of a four-person team working with Reales.

“It’s really necessary at this time when we have to plan for a more sustainable development, especially in all these cities with so many polluting industries.”

Mining companies have shown interest in the research but while Rudanac Biotec previously benefitted from a state fund for start-ups, the company needs investment to move on to its next stage of trials.

Reales says she needs money to see if her method will “eat a medium sized beam or a hopper.”

When the disintegration process is complete, what remains is a reddish liquid residue, a solution known as a lixiviant that itself possesses a surprising quality.

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“After biodisintegration the product generated (the liquid) can improve the recovery of copper in a process called hydrometallurgy,” said Reales.

Essentially, the liquid residue can be used to extract copper from rock in a more sustainable manner than the current use of chemicals in leaching.

Reales says it means green mining is “totally feasible.”

That is of great interest to mining companies that could use it to improve their large scale extraction of copper or other minerals, while also reducing their pollution, something they are required to do by law.

Reales recently submitted a request for an international patent for her technology, but more importantly she hopes it will help reduce metal waste blotting the landscape in the mining regions of her country.

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International

Germany says football bodies alone will decide on possible World Cup boycott

The German Football Association (DFB) and FIFA will decide with full “autonomy” whether to boycott the upcoming World Cup, which will be hosted mainly by the United States in six months, following threats made by former U.S. president Donald Trump, the German government told AFP on Tuesday.

Trump has threatened to seize Greenland and impose higher tariffs on European countries that oppose the plan, raising political tensions between the United States and Europe.

“This assessment therefore lies with the relevant federations, in this case the DFB and FIFA. The federal government will respect that decision,” Sports State Secretary Christiane Schenderlein said in a statement emailed to AFP.

AFP had asked the German government about the possibility of a boycott of the World Cup to be jointly hosted by Canada, the United States and Mexico from June 11 to July 19.

“The federal government respects the autonomy of sport. Decisions regarding participation in major sporting events or possible boycotts fall exclusively within the responsibility of the relevant sports federations, not the political sphere,” said Schenderlein, a member of the conservative CDU, the party of Chancellor Friedrich Merz.

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International

Daily Mail publisher insists reports relied on legitimate sources amid privacy trial

Two British tabloids accused of phone hacking and other forms of “unlawful information gathering” against Prince Harry and six other individuals, including singer Elton John, insisted on Tuesday that their reporting relied on legitimate sources.

Associated Newspapers Ltd (ANL), the publisher of the Daily Mail and The Mail on Sunday, sought to rebut allegations of privacy violations through illegal methods on the second day of trial at London’s High Court, following a lawsuit filed by the seven claimants.

Prince Harry, 41, who attended court hearings on both Monday and Tuesday, could be called to testify starting Wednesday in a trial expected to last up to nine weeks.

Lawyers for the claimants said the alleged illegal activities took place between 1993 and 2011, with some incidents reportedly extending as late as 2018. They argue that the tabloids hired private investigators to intercept phone calls and obtain confidential information, including detailed phone records, medical histories, and bank statements.

However, Anthony White, counsel for ANL, told the court that the trial would show the company presents “a compelling account of a pattern of lawful source acquisition” for its articles.

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White added that the claims would require the court to believe that journalists and staff at the tabloids had engaged in widespread dishonesty, which the company strongly denies.

International

Death toll from southern Spain train crash rises to 40

The death toll from the train accident that occurred on Sunday in southern Spain has risen to 40, according to investigative sources cited by EFE on Monday afternoon.

Since early Monday, search operations have focused on the damaged carriages of a Renfe train bound for Huelva, which collided with the last derailed cars of an Iryo train traveling from Málaga to Madrid after it left the tracks.

The crash has also left more than 150 people injured. Of these, 41 remain hospitalized, including 12 in intensive care units at hospitals across the Andalusia region.

More than 220 Civil Guard officers are working at the site, searching the railway line and surrounding areas for key evidence to help identify victims and determine the causes of the accident.

The tragedy has revived memories of the deadliest railway disasters in Europe in recent decades. In Spain, the most severe occurred on July 24, 2013, when an Alvia train derailed near Santiago de Compostela, killing 80 people and injuring 130 others.

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At the European level, the worst rail disaster took place on June 3, 1998, in Eschede, northern Germany, when a high-speed train struck a bridge pillar at 200 kilometers per hour, resulting in 98 deaths and 120 injuries.