#electronicwaste — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #electronicwaste, aggregated by home.social.
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#GoldExtraction from #EWaste gets 10 times more efficient with new sponge material
Researchers developed a nanoscale cross-dimensional composite material via self-assembly of two-dimensional graphene oxide and one-dimensional chitosan macromolecules.
By Prabhat Ranjan Mishra, Oct 27, 2024
"Researchers have developed a new type of material that’s 10 times more efficient at extracting gold from e-waste than previous adsorbents. Developed by chemists and materials scientists at the National University of Singapore, the material is a type of sponge made of #GrapheneOxide and #chitosan [shrimp shells].
"The material can reportedly transform the way gold is extracted from electronic wastes, which has been described so far as a dirty business with low yields and results in toxic #pollutants.
"The cheaper, cleaner and efficient method was tested by researchers using real e-waste provided by a recycling company."
[...]
"While the present work focused on gold, the team say the technique could be adapted to recover other valuable metals such as #silver, #platinum or #palladium from #ElectronicWaste or even #mining residues. And that is not all: as well as e-waste, the technology might be applied to a wider range of environmental cleaning efforts, such as filtering out #HeavyMetals from #PollutedWater sources or industrial effluents, reported Physics World."
Read more:
https://interestingengineering.com/innovation/gold-extraction-from-e-waste-sponge
Article in Physics World - Eco-friendly graphene composite recovers gold from e-waste24 Oct 2024
https://physicsworld.com/a/eco-friendly-graphene-composite-recovers-gold-from-e-waste/
#SolarPunkSunday #NoGoldMining
#EWasteRecycling #MetalsExtraction #Electronics #RareEarthMinerals #Recycling #NewTechnology #ShrimpShells -
ICYMI - From 2016
The Burning Truth Behind an #EWasteDump in #Africa
Ending the #toxic smoke rising from an iconic dump in #Ghana will take more than curbing Western waste
by Adam Minter
January 13, 2016"They are some of the most iconic photos in environmental journalism: young African men, often shirtless, standing over small fires fueled by digital detritus imported from richer countries. The toxic smoke swirls around them and over #Agbogbloshie, the roughly 20-acre scrap yard in the heart of #AccraGhana, where these men live and work.
"During the last decade, some of the world’s most respected media organizations have transformed Agbogbloshie into a symbol of what’s believed to be a growing crisis: the export—or dumping—of electronic waste from rich, developed countries into Africa. It’s a concise narrative that resonates strongly in a technology-obsessed world. There’s just one problem: The story is not that simple..."
Read more:
https://www.smithsonianmag.com/science-nature/burning-truth-behind-e-waste-dump-africa-180957597/#ElectronicWaste #SupportLegacyProducts #Consumerism #Capitalism #Crapitalism #CorporateColonialism
#PlannedObsolescence
#Landfills #RightToRepair #EnvironmentalRacism #WaterIsLife #SoilIsLife #RepairReuseRecycle
#Consumerism
#Anticonsumerism #EnvironmentalPollution