Researchers have designed a small block structure or monolith using 3D printing that can filter one of the most common “forever chemicals” in the water. A team from the University of Bath in the UK used a special material called indium oxide and through 3D printing, made lattices to maximise the surface area and create small monoliths. In three hours, the monoliths removed 53 per cent of perfluorooctanoic acid (PFOA), one of the most common forever chemicals also called PFAS. Moreover, by heating the monoliths at 500°C and reusing them three times, researchers observed that at least 75 per cen…