Environmental pollution increases along with industrial developments, one of which is copper (Cu) heavy metal waste.  In this research, banana peel as adsorbent was carbonized at 350℃. Then chemically activated with ZnCl2 and KMnO4.   Biopolymer pellets without banana peel activated carbon were in the form of white gel-like beads, activated carbon ZnCl2 and KMnO4 0.5 g were dark gray, and ZnCl2 and KMnO4 1 g were light gray. SEM results showed that the pores of ZnCl2 and KMnO4 1 g were larger than the pores without  0.5 g. The mechanical strength with the best percentage of activated ZnCl2 biopolymer pellets was 1 g at 6%, while activated KMnO4 was 0,5 g at 2%.  Biopolymer pellets  of banana peel activated ZnCl2 worked well in the removal of copper (II) at pH 6  the concentration  absorbed 3.03 ppm. Meanwhile  activated KMnO4 at pH 5 with the concentration absorbed 3.675 ppm.