Adsorption and desorption of copper(II) ions onto garden grass

► Garden grass (GG) exhibits an excellent sorption capacity for the removal of copper. ► Physical sorption occurs onto garden grass. ► Copper sorption capacity was 58.3428-60 mg/g for 1 g doses. ► Sulphuric acid was the better eluent for copper. ► Desorption system could be explained by the isotherm models.