Scientists at ETH Zurich, in collaboration with UNITAR and ITU
GS3Economy · S&T · Environment · Security· Biotechnology & health research· Prelims·
Why in news
Scientists at ETH Zurich, in collaboration with UNITAR and ITU, developed a sustainable method to extract 450 milligrams of 22-carat gold from discarded electronic waste using a 'protein sponge' made from whey protein.
Background
Researchers at ETH Zurich used whey protein, a dairy industry byproduct, to create a protein sponge for gold extraction. The study successfully recovered 450 milligrams of 22-carat gold from old computer motherboards.
Facts for Prelims
- S&TETH Zurich: Swiss Federal Institute of Technology in Zurich
- Fact450 milligrams of 22-carat gold recovered from discarded electronic waste
- FactWhey protein: A byproduct of the dairy industry used as a 'protein sponge' for gold extraction
- BodyUNITAR: UN Institute for Training and Research
- BodyITU: International Telecommunication Union
For Mains
Q. Discuss how the development of green recycling technologies for electronic waste can contribute to the circular economy and sustainable industrial growth.
Dimensions to cover in your answer
- Circular economy: Transforming dairy byproducts and e-waste into high-value industrial resources
- Environmental mitigation: Reducing toxic chemical runoff associated with traditional gold extraction methods
Keywords: Circular Economy · Sustainable Development · E-waste Management · Green Technology · Resource Recovery
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