I wonder if they could add a trash launcher to the ISS. If some kind of spring or slingshot threw trash retrograde with sufficient velocity, there should be two advantages:
1) The trash would be put in an orbit with a lower periapsis, increasing atmospheric drag causing it to re-enter and burn up more quickly.
2) The orbit of the ISS would be boosted by dV of the trash, reducing the fuel required for the next boost.
1) The trash would be put in an orbit with a lower periapsis, increasing atmospheric drag causing it to re-enter and burn up more quickly.
2) The orbit of the ISS would be boosted by dV of the trash, reducing the fuel required for the next boost.