Graphene and chitosan sponge 10x more efficient at removing gold from e-waste(phys.org) A team of chemists and materials scientists at the National University of Singapore, working with colleagues from Manchester University, in the U.K., and Guangdong University of Technology, in China, has developed a type of sponge made of graphene oxide and chitosan, that can be used to extract gold from electronic waste.
I Made a Rubbish Clock(jgc.org) With separate plastic, metal, paper, and glass recycling, composting, and pick up of all the rest, knowing which days to put out which bins can be complicated. Some have turned to high-tech solutions like Darren Tarbard's wonderful "bindicator".
A national lab retires–and shreds–large computing resources(techxplore.com) Ever wonder what happens to massive supercomputing systems when they're retired? Surprisingly, when it comes to the data, it's not too different from disposing of old documents—they go straight into a shredder and sent to recycling.
Vaporizing plastics recycles them into nothing but gas(arstechnica.com) Our planet is choking on plastics. Some of the worst offenders, which can take decades to degrade in landfills, are polypropylene—which is used for things such as food packaging and bumpers—and polyethylene, found in plastic bags, bottles, toys, and even mulch.