TAMARIND FRUIT SHELL ADSORBENT SYNTHESIS, CHARACTERIZATION AND ADSORPTION STUDIES FOR REMOVAL OF CR(VI) & NI(II) IONS FROM AQUEOUS SOLUTION

Waste water treatment has gained an importance over the years due to rise in concentration levels of toxins leaving the industrial effluents. There are number of heavy metallic ions discharged from processes & putting burden on waste water management. Adsorption is one of the effective methods in the removal of metallic ions present in waste water. The present work deals with the removal of Cr (VI) & Ni (II) ions by the adsorbent synthesized from the Tamarind fruit shell. The synthesis of adsorbent is carried out using thermal method. The specific surface area of the adsorbent is estimated to be 2.1274+ 0.0246 m/g as in BET method. The synthesized adsorbent is studied for the effect of ion concentration & adsorbent dosage on the removal of Cr (VI) and Ni (II) from aqueous solution. Based on the results & discussions, it can be concluded that the adsorbent prepared from tamarind fruit shell has a significant capacity for adsorption of Chromium (VI) & Nickel (II) ions from aqueous solution & can be employed effectively as a low cost adsorbent.