Now that we have cabin cleaning (and the associated waste removal from the cleaning depot), should the cleaning/waste collection that janitors do in the terminal also be disposed of?
As a possible suggestion:
Janitor does cleaning.
After the janitor has done a given number of cleaning jobs, they drop that waste off at a waste collection point in the terminal (that has service road access).
An airport waste truck (could be a 2nd task for cabin cleaning truck) collects that waste and takes it to the waste depot.
The city garbage truck collects it in the same way that cabin cleaning waste is.