This study describes the use of plant waste as a bio adsorbent material for Lead ions removal from aqueous solutions. Abutilon pannosum (APL) and Grewia tenax (Forssk.) leaves (GTL) waste were used as an adsorbent after being modified by acid, base and organic solvents. Through the batch experiments the study was done as a function of pH, time, concentration of adsorbent as well as adsorbate, temperature etc. The adsorption mechanism was understood using various isotherms, kinetics and thermodynamic modeling. Kinetic studies are found best fitted with pseudo second order followed by Elovich...