Removal and recovery of heavy metals from mixture of Ni+2 andPb+2 by Sulphonated and Nitrated Biomass of Cicer arientinumColumn studies

The powdered biomass of Cicer arientinum has been converted in to cheap carbonaceous adsorbent by AR Sulphuric acid and AR. Nitric acid treatment. This adsorbent exhibits a good sorption potential for heavy metals like Ni2+ and Pb2+ from their mixture. Present work deals with removal and recovery of heavy metals like Ni2+ and Pb2+ from their mixture and chemical regeneration of the adsorbent material