Not sure if you are trolling or not, but did you even look at the Basel web page. Even with my limited german it took me less that a minute to find the answer:

http://www.stadtreinigung-bs.ch/saub...l=37&detail=70

with a full list of how to dispose of various items here:

http://www.stadtreinigung-bs.ch/saub...?lang=0&sel=37

Pat