This paper reported the research results of studying the possibility of separation, recovery of Cu(II), Ni(II) in aqueous solution of the adsorbent made from straw (adsorbent I) and banana stem (adsorbent 2). The experiments were conducted using the following parameters: adsorbent mass: 1.218 g of adsorbent 1 and 1.428 g of adsorbent 2
pH = 5.0 for Cu (II) and pH = 6.0 for Ni (II). The results of experimental indicate that the two adsorbents are able to separate Cu (II), Ni (II) is quite good. HN03 is used to recover metal ions. After adsorption of Cu (II), Ni (II), the adsorbent is regenera,ted adsorption capacity of Cu (II), Ni (II) is quite good.