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Scientists have developed a new ‘key-hole surgery’ technique to extract metals from the Earth which could revolutionize the future of metal mining.
A team of international researchers, including Dr. Rich Crane from the Camborne School of Mines, University of Exeter, have developed a new method to extract metals, such as copper, from their parent ore body.
The research team have provided a proof of concept for the application of an electric field to control the movement of an acid within a low permeability copper-bearing ore deposit to selectively dissolve and recover the metal in situ.
This is in contrast to the conventional approach for the mining of such deposits where the material must be physically excavated, which requires removal of both overburden and any impurities within the ore (known as gangue material).
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2021-05-05 04:05:46 GMT2021-05-05 12:05:46(Beijing Time) Xinhua English
SYDNEY, May 5 (Xinhua) Australia has reached a new phase in the rollout of COVID-19 vaccination program this week with all people aged 50 being eligible for a dose of the AstraZeneca vaccine.
Since late February, about 15.2 million vaccine doses had been allocated throughout Australia. The first recipients have included quarantine and border workers, health care workers and residents and workers in aged care and disability homes.
The eligibility list was extended on March 22 to include Indigenous people aged 55 and over, other people aged 70 and over, younger adults with underlying medical conditions or disabilities and police, fire and emergency services workers and meat processing workers.
Press Release – University of Western Australia Researchers from The University of Western Australia, Australias national science agency CSIRO, the Technical University of Denmark and the University of Exeter have developed a new mining technique that uses electric fields to extract metals from …
Researchers from The University of Western Australia, Australia’s national science agency CSIRO, the Technical University of Denmark and the University of Exeter have developed a new mining technique that uses electric fields to extract metals from hard rock ore.
The technique could replace the traditional method of digging which results in significant costs to the environment.
Digging methods are currently used in 99 per cent of mining activity, often resulting in significant environmental degradation and huge quantities of solid waste.
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New Edith Cowan University (ECU) research has found that by eating just one cup of nitrate-rich vegetables each day people can significantly reduce their risk of heart disease.
The study investigated whether people who regularly ate higher quantities of nitrate-rich vegetables, such as leafy greens and beetroot, had lower blood pressure, and it also examined whether these same people were less likely to be diagnosed with heart disease many years later.
Cardiovascular diseases are the number one cause of death globally, taking around 17.9 million lives each year.
Researchers examined data from over 50,000 people residing in Denmark taking part in the Danish Diet, Cancer, and Health Study over a 23-year period. They found that people who consumed the most nitrate-rich vegetables had about a 2.5 mmHg lower systolic blood pressure and between 12 to 26 percent lower risk of heart disease.