Optimizing the Biosorption Behavior of Ludwigia stolonifera in the Removal of Lead and Chromium Metal Ions from Synthetic Wastewater

In this study, a natural low-coast, efficient, and eco- bio-sorbent plant material (Ludwigia stolonifera), with both parts of the root shoot, were studied for removal cationic metal ions, lead Pb2+ chromium Cr6+, via batch mode experiments to evaluate their maximum adsorption capacity, held comparison between used roots shoots, based on highest bio-sorption potential. Optimization parameters, such as contact time, pH, (root shoot) dosage, initial ion concentration was conducted. The results indicated that 1.6 g shoot removed 81.4% Pb2+, 77% Cr6+ ions from liquid media under conditions 100 ppm at room temperature 60 min time static condition. Different isotherms kinetic models fit experimental data understand nature process. best by pseudo-second-order model high correlation coefficient (R2 = 0.999), which reveals chemisorption chemical structural analysis bio-sorbent, before after bio-sorption, performed using different techniques characterization, Scanning Electron Microscopy (SEM) Fourier-transform infrared spectroscopy (FTIR). proved be low-cost, eco-friendly remove heavy aqueous solutions.