I wanted to make a cheap joke about getting the ghosts out by boiling the hell out of it but I wound up in a rabbithole about supercritical water. It turns out you can boil the hell into water. With a lot of heat and pressure water can dissolve rock, oil and gas dissolve into the water easily, and if you put organic waste into really angry water that shit will burn. Underwater! It even destroys PFAS and prions!