Behind the flat is a big trash container where you can discard your "regular" house trash. It's not allowed to leave any trashbags in the halls. You are urged to dispose of these as quickly as possible. This is to avoid nasty smells and pests in the building. When the container is full, you can push the transparent/green button on the side which will press the trash further into the container.
In this container you CANNOT put any paper, glass, furniture, or electrical appliances.
Consult the map on this page for the appropriate places to dispose of these things.
Building Hoendiep 2: Orange house
Paper dumpster: Blue pin
Glass dumpster: Red pin
Clothing donation dumpter: Green pin