Biosorption of Aqueous Pb(II), Co(II), Cd(II) and Ni(II) Ions from Sungun Copper Mine Wastewater by Chrysopogon zizanioides Root Powder

In this study, a plant-based adsorbent was used in order to remove lead, nickel, cobalt and cadmium metals from wastewater sample collected Sungun mine real wastewater. The biosorbent one of the most abundant native plants region, named Chrysopogon zizanioides (C. zizanioides). root powder C. heavy sample. characterized by FTIR, SEM, HR-TEM, EDS, BET ZPC analyses. effect pH, initial concentrations, contact time temperature on biosorption process were accurately investigated. metal concentrations significantly reduced lower after process, which indicated that removal efficiency more than 95% for sample, with maximum adsorption capacities 31.78, 21.52, 26.69 27.81 mg/g, Pb(II), Co(II), Cd(II) Ni(II) ions, respectively. Furthermore, kinetic results showed pseudo-second-order model correlated experimental data well, correlation coefficient values 1 all metals. Isotherm studies illustrated Freundlich Dubinin-Radushkevich (D-R) isotherm models could describe obtained equilibrium well. Moreover, D-R model, it found type physical. thermodynamic demonstrated metals’ an exothermic spontaneous process. reusability be several successive cycles, also percentage recovery adsorbed biosorbent, Altogether, being simple cost-effective having high rate, fast kinetics, easy separation prove shows significant performance waste effluents.