Application to the military aircraft fuel services requires the highest level of certainty. Disposal requirements vary from one jurisdiction to another, but the materials in the WaterMagnet are common plastics and cellulose fibers found in many common household products. The polymer gel that is produced when water is absorbed is non-toxic and will dry out if left exposed to dry air for a long time. Note, however, that the WaterMagnet is not reusable after drying out. Most of our customers simply make sure all the fuel is dried out or evaporated, then either incinerate or send the used WaterMagnet to a landfill.
Treatment is similar to, but easier than, fuel filter elements' disposal.
I am using the WaterMagnet on board a boat. One of the best features of the WaterMagnet is that it does not require that fuel be spilled, handled, orpumped out to remove water from boat or ship fuel tanks. Simply provide a sealable plastic container orbag that can accept the WaterMagnet after it has had free fuel drained back through the tank opening. Anything can work for this, but the sealable plastic freezer bags are probably the best and require the least space. Once on shore, you can dispose of without ever risking signs of a fuel spill.