If you have an old smartphone at home, a little date TV, a vacuum cleaner you no longer use, no faulty device, do not throw it: its unimaginable price. Our old phones, PCs, washing machines, alarm watches, various broken electronic devices or even Gold can be extracted. I Electronic wasteWhat we usually hear is called Wae, there is incredible wealth hidden, but almost no one knows. Now, thanks to the work of many research groups around the world, various techniques have been developed to remove gold from these waste, rapidly performing and environmental.
Ton gold in electronic waste
If one side is a problem that phone, television, refrigerators, boiler and who are more polluted because they contain internal percentage of metals, rare or valuable, on the second fact that all these are much better in the components there – Including gold, experts have been making engineers for some time to find the best way to evacuate them. Incredible but true, it’s guessed A ton of electronic waste Consisting of the least 10 times more gold than a ton of minerals The gold itself is removed.
In fact, there is gold in electronic waste, in fact, nothing new. According to the report, only to give a number World E West Monitor 2024 UN, in 2022 they were well developed all over the world 62 billion kilograms of electronic wasteVinegar 7.8 EveryoneE Were only 22.3 % deposited and recycled. Predicted from 2030 from here 80 million tons. Today, it is also estimated that artificial intelligence will produce 5 million tonnes of electronic waste by 2030.
In 2022, a person in the United States threw an average of 21kg of electronic devices, while in Norway, the highest number of capita electronic waste country, even 27. Metals are half of everything in the world. And are able 91 billion dollars. Copper, iron and gold represent a large piece of such value. Electronic waste includes aluminum, platinum and rare ground elements such as neodium, basic and green transfer needed for batteries.
All the benefits of extracting gold from old devices and devices
Imagine what would happen if this entire amount of electronic “rest” was recycled properly. Finally, some important steps to sleep were taken. Today, various complex processes are used, including the dissolution of gold, its absorption in the icon state and the consequent reduction of metal. However, these systems use aggressive chemicals and help in enhancing the environmental effects of electronic waste.
Extraction of metal eliminates natural residences, pollutes soil and water, produces pile of non -proportional waste, and is linked to the most serious violations of human rights. Recycling will solve all these problems, allow the circular use of materials and help meet the demand for important metals. Not just that: Ben’s problem will also be avoided 52 million tonnes of greenhouse gases Connected to mining
Extremely Hopeful Studies
Let’s see where the research on the extraction of gold from electronic waste is?
With the gold recovered from electronic garbage, turns to CO2 Organic materials
One of the most interesting tasks in this sense is the study that Cornell University published on Nature Communications on December 30, E -West’s recycling in Colant Organic Framework Catalists for Terminal Alkine Carboxy. As seen, traditional methods for recovering gold from electronic garbage, such as sytyide, which include environmental risks. Instead, the method developed by Aminzad is “bio”.
Researchers succeeded in developing a way to extract gold from electronic waste using exported precious metal Catalist to convert carbon dioxide into organic material. And 99.9 % Effective System Gold and other metals, such as nickel and copper to recover from devices and devices.
In addition, converting CO2 into value -added content, not only needs to waste waste, but also direct benefits to the environment. This method can provide sustainable use for the minimum part of 50 million tonnes of wasted electronic waste each year, of which only 20 % are recycled today.
A “sponge” that pulls 10 times better gold
Another search for considerable interest is another search, which has been developed just before, is the one that has been held Co Yang Deal ‘National University of Singapore And was published in the United States, the PNAS Academy of Sciences magazine. In this case, researchers created a New materials like sponge Able to extract gold from electronic waste with a bean extraction capacity 10 times better Compared to the first used system.
Is developed by special sponge Nanofaberic techniquesOn the basis of single, single and microscope chinchinus, is so small that 1D is considered, that is, one -dimensional.
They are true at the nanotechnology points that are placed on special graphine flakes, only carbon atoms sheets and the thickness of the same atom, and for that reason 2D are called. Their combination leads to the formation of a 3D structure, which is similar to sponsorship, in which gold ions are strapped by electronic material. All this without using energy. The result is thatPerformance reaches 99.5 % Compared to the current technique.
A special ejal received from Ricoto
We also have the name of an Italian in the most beneficial research in the gold extraction sector. Professor Raphael Missing That Health and Technology Sciences Department OnETH in Zorigo And his team in Amberia has developed another technique to absorb gold ions from television, dish washer and any other electronic device that we can have at home.
It always happens a kind of SpongeWith more than 98 than porrosity and a lot of light, which demonstrates the ability to absorb abnormal effects, selective and gold ions: the material is a Erzel of Protein NanofibriGet, think a little, from, from Ricoto serum.