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Scientists Present A Safe And Highly Selective Method For Recovering Gold From Electronic Waste Without Mercury Or Cyanide. The Discovery Opens Space For A More Sustainable Future
A scientific discovery made by researchers at Flinders University has redefined the way to recover gold from ores and large volumes of electronic waste.
The study, described in the journal Nature Sustainability, presented an innovative process capable of completely avoiding the use of mercury and cyanide. These compounds are widely associated with the contamination caused by traditional mining.
Consequently, the method gained immediate prominence in the scientific community.
Technical Investigation Reveals Selective And Fully Reversible Chemical Process
The scientists explained that the process begins with sodium trichloroisocyanurate activated in saltwater, a common and low-risk reagent used in pool disinfection. Shortly after, this substance dissolves the gold present in ores, circuit boards, and scientific waste. This allows for the initial separation of the metal.
Next, a sulfur-rich polymer acts as a selective trap, capturing only the gold even when there are complex mixtures with other metals.
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Furthermore, the polymer can be reverted to its original state. This return allows the release of pure gold and enables the continuous reuse of the material, creating a cleaner and more efficient cycle.
Economic And Environmental Potential Of An Emerging Technique
Researcher Justin Chalker stated that the central goal of the study is to provide a viable and environmentally safe alternative to conventional practices.
He emphasized that the method uses a leaching reagent inspired by compounds applied in water disinfection. This feature reinforces the chemical safety of the process.
Shortly after, the team developed a completely new method for producing the sorbent polymer.
The material is activated only by UV light. Therefore, the scientists pointed out that the technique could change the way various sectors handle waste and ores.
Proven Efficiency In Various Industry And Research Scenarios
The tests included motherboards, RAM modules, complex ores, and industrial waste with minimal amounts of gold.
According to the researchers, the efficiency was considered high in all evaluated scenarios.
Additionally, researcher Harshal Patel stated that the team managed to turn “a mountain of electronic waste into a block of gold.”
This statement highlights the positive environmental impact of the discovery.
Shortly after, the scientists reinforced that this approach could become a strategic solution to the growing global volume of e-waste.
Potential Impacts On Global Mining And Recycling
Although the research is still in ongoing evaluation, the scientists explained that the demand for gold is rapidly increasing.
Thus, safe and versatile purification methods become essential to meet technological and industrial needs.
Moreover, the technique may enhance the ability to recover precious metals from discarded equipment. This innovation aligns with global sustainability movements.
What Does This Advancement Represent For The Future Of Gold Extraction?
The technique created by the researchers demonstrates that it is possible to recover gold without compromising the environment.
This represents an important milestone for the sector.
New possibilities emerge to transform electronic waste into valuable resources safely.
Meanwhile, expectations grow that methods like this will become internationally recognized.
What do you believe should be a priority: to rapidly expand gold recovery or to advance with a total focus on process sustainability?
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