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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

Trump appoints Stallone, Voight, and Gibson as special ambassadors to Hollywood

U.S. President-elect Donald Trump announced on Thursday the appointment of actors Sylvester Stallone (‘Rocky’) and Jon Voight (‘Midnight Cowboy’), as well as actor and director Mel Gibson (‘Braveheart’) as special ambassadors to the “very problematic” Hollywood.

“They will help me as special envoys to make Hollywood, which has lost many overseas businesses in the last four years, COME BACK BIGGER, BETTER, AND STRONGER THAN EVER,” he posted on his social media platform, Truth Social.

The Republican lamented all the “problems” he claims Hollywood faces and created this role with the aim of improving the situation from a business perspective.

“These three talented men will be my eyes and ears. I will do whatever they suggest,” he said.

Stallone had previously described Trump as the second George Washington, the first U.S. president (1789–1797) and one of the nation’s founding fathers, during a dinner after his victory in the November presidential elections, where he served as the master of ceremonies.

Meanwhile, Gibson attacked Trump’s rival, Vice President Kamala Harris, accusing her of having “the IQ of a fence.”

The Republican leader will be sworn in as president on January 20 on the steps of the U.S. Capitol, succeeding Democrat Joe Biden.

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International

Latin American and Caribbean diplomats voice concern over U.S. mass deportation plan

Diplomatic chiefs from ten Latin American and Caribbean countries expressed their “serious concern” over the announcement of a mass deportation of migrants, a measure they consider incompatible with human rights, according to a joint statement released this Friday.

The statement, which does not attribute the measure to any specific country, refers to the announcement made by U.S. President-elect Donald Trump, who has promised to carry out the largest foreign deportation operation in the history of the nation once he takes office next Monday. “The announcements of mass deportations are a serious cause for concern, especially due to their incompatibility with the fundamental principles of human rights and their failure to effectively address the structural causes of migration,” the statement said, released by Mexico’s Ministry of Foreign Affairs (SRE).

The signing countries—Brazil, Belize, Colombia, Cuba, El Salvador, Guatemala, Haiti, Honduras, Mexico, and Venezuela (almost all migrant-sending nations)—also committed to “defend the human rights of all migrants.”

This includes “rejecting the criminalization of migrants at all stages of the migration cycle” and “protecting them as a priority from transnational organized crime that profits from migration,” the document adds.

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International

Noboa once again entrusts the Vice President of Ecuador to the vice president he appointed by decree

The President of Ecuador, Daniel Noboa, returned this Thursday to delegate – for the second time – the Presidency to the Secretary of Public Administration and Cabinet of the Presidency Cynthia Gellibert, whom he himself appointed by decree vice president in charge, in the face of the open confrontation he maintains with the vice president, Verónica Abad.

As he did last week, Noboa again issued a decree in which he announces that he is absent from the Presidency from Thursday to Sunday, to make an electoral campaign in search of his re-election in the elections of February 9, and during that period of time it will be Gellibert who will be in charge of the head of the State.

This action of the president of Ecuador is a matter of evaluation by the ordinary and constitutional justice at the request of the vice president, Verónica Abad, who claims to assume the presidential functions during the full period of the electoral campaign, in which according to the Constitution the head of state must ask for leave for being a candidate for re-election.

In his decree, Noboa argues that, although the Constitution determines that the Vice Presidency must assume the head of State in the event of the absence of the president, this “is not limited to the elected vice-president, but to the person who to date is exercising the functions of the Vice Presidency.”

Before appointing Gellibert as vice president in charge by decree, Noboa sent Abad to the Ecuadorian Embassy in Turkey, after a judge annulled the five-month suspension that the same Government had imposed on him. Until now, the vice president remains in Ecuador to claim to be the one who temporarily assumes the Presidency.

The new period of Gellibert with presidential powers began at 18:00 local time (23:00 GMT) this Thursday and is scheduled to end at 22:00 (03:00 GMT) next Sunday, time at which the debate between presidential candidates is expected to end where Noboa is summoned to participate.

After the debate, Noboa plans to travel to Washington to attend Donald Trump’s presidential inauguration, according to the Ecuadorian Presidency.

After the first assignment of the Presidency to Gellibert, Abad denounced a “coup d’état” and urged the Organization of American States (OAS) to apply the Democratic Charter, considering that the constitutional order had been broken because it had not received the presidential powers, as contemplated in the Ecuadorian Constitution.

In addition, he filed a protection action with which he seeks that the Justice annul the decrees in which Noboa appointed Gellibert as vice president in charge and delegated the Presidency to him. A court admitted the appeal on Friday, but did not accept some precautionary measures that Abad also asked for to suspend those effects immediately.

Controversies like this will be part of the analysis and evaluation of the electoral observation mission (EOM) of the European Union (EU) for the Ecuadorian elections, as anticipated on Wednesday by its leader, Spanish MEP Gabriel Mato.

The confrontation between Noboa and Abad began in the electoral campaign for the second round of elections for the extraordinary elections of 2023, and was reflected when he assumed the charges, when in one of his first decisions, the president sent the vice president to Israel as ambassador, with the mission of seeking peace between Israelis and Palestinians.

Abad has denounced Noboa for alleged political gender violence and has accused her of leading a harassment against her to force her to resign and thus avoid having to delegate the Presidency to her during the electoral campaign period, which runs from January 5 to February 6.

The titular vice president has also accused the Government of being behind the corruption investigation in the offices of the Vice Presidency that involves her son in a case where the Prosecutor’s Office also sought to indict Abad, but the National Assembly (Parliament) voted mostly against lifting the jurisdiction, although the ruling party voted in favor.

The general elections in Ecuador are called for Sunday, February 9 and, according to the polls published so far, Noboa and the candidate of the correismo Luisa González appear as prominent favorites to move on to the second round.

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