New aminated cellulosic adsorbents were prepared by reacting scoured flax, kenaf, and jute bast fibres, as host substrates, with Solidgen(R) (crosslinked polyethyleneimine-CPEI), as a modifier bearing amino groups, at pH 5 for 1 hr at 60℃ using a material-to-liquor ratio of 1;10. The use of the obtained products for the removal of (MnO₄￣) and (Cr₂O²￣) metal anions as well as for picking up some anionic dyes, i.e, direct and acid dyes, from their aqueous solutions were investigated. The results showed that both the extent of amination as well as the removal capability were determined by the nature of the adsorbent and followed the decreasing order: jute ＞ kenaf ＞ flax, regardless of the removal anion, reflecting the differences among these substrates in fibre morphology, physical structure, chemical constituents, noncrystalline area, location and distribution of CPEI on and/or within the bast fibre. The extent of anion removal follows the order: MnO₄￣ ＞ Cr₂O²￣, while the dye removal efficiency follows the order: acid ＞ direct, regardless of the used adsorbents.