Абстрактный

ADSORPTION OF CADMIUM (II) AND LEAD (II) FROM A STOCK SOLUTION USING NEEM LEAVES POWDER AS A LOW-COST ADSORBENT

Ghanshyam G. Pandhare, Nikhilesh Trivedi, Rajesh Pathrabe, S. D. Dawande

The study on performance of low-cost adsorbent such as Neem leaves powder in the removal of Cadmium (II) and Lead (II) ion from aqueous solution is performed. In present study Neem Leaves Powder adsorbent prepared using chemical activation process and the surface area measured. The adsorbent material adopted was found to be an efficient media for removal of Cadmium (II) and Lead (II) ion with different parameter like Adsorbent dosages, Concentration and contact time etc. A comparative study has also been done on the adsorption capacity of Neem Leaves Powder. The column studies were conducted with different contact time and reduced concentration determines using Atomic Absorption Spectrophotometer (AAS). It was found that the metal uptake capacity (amount of removal) of Cadmium (II) and Lead (II) ion decreased but the adsorption capacity (percentage of removal) increased with the decrease in the concentration of Cadmium (II) and Lead (II) in the initial sample solution. Correlation coefficient and isotherm constant was also calculated from isotherm studies with different parameter