REMOVAL OF COPPER HEAVY METAL BY USING BIOSORPTION TECHNIQUE

Abstract

The suitability of agricultural waste material such as Orange (Citrus sinesis L.), Lemon (Citrus limon L.), and mousami (Citrus limetta Risso.) peels to eliminate heavy metal Cr (VI) was investigated using a batch biosorption technique. The amount of metal ions removed from solution is determined by the contact duration between the metal ion substrate and the ions, as well as the ion concentration and type. For all three substrates, contact times were chosen at 15, 30, and 60 minutes. When compared to other biosorbents, such as mousami peels (76 to 89 pp ) shows higher biosorption efficiency as compared to orange and lemon peels i.e.; (40 to 68 ppm) and (44 to 66 ppm) in the aqueous metal solution. In all cases mousami (C. limetta) peels exhibited greatest adsorptive capacity for Cr (VI) ions removal than other biosorbent.