Jätäaine
Jätäaine is a Finnish term that translates to "residue" or "leftover substance." It commonly refers to the remnants of a process, particularly in industrial or scientific contexts. The nature of the jätäaine depends heavily on the specific process it originates from. For example, in chemical manufacturing, jätäaine might be unreacted starting materials, byproducts, or impurities that remain after a desired product has been separated. In the context of waste management, it can refer to the solid or liquid material left after incineration or other treatment methods.
The term can also be applied more broadly to any substance that is left behind. For instance,