The Canadian start-up CleanO2 has developed a device able to produce potassium carbonate. A chemical used in the manufacture of soaps.
Called the "Refabricator", NASA's recycling machine converts plastic waste into 3D printing materials.
Taiwanese designer Yi-han Chen has designed incredible recycled paper flip-flops with an interchangeable sole. 
Researchers at the University of Bristol may have found a new solution to managing radioactive waste - enclosed in diamonds, it becomes a source of electricity.
Recycling electronic components is a major issue. But graphene-based formulas could make capacitors 100% biodegradable.