Pb (II) Recovery by Trout Bones: Adsorption, Desorption and Kinetic Study

Heavy metal removal from the water was studied by using fish bones produced in trout farm of Atatürk University Faculty Fisheries. Fish used as adsorbent were obtained rainbow (Oncorhynchus mykiss). Trout bone its natural form. According to experimental results that maximum Pb (II) adsorption capacity 188.16 mg/g. The Langmuir, Freundlich, and Temkin isotherm models applied describe on bones. Langmuir Freundlich found more favourable than with correlation coefficients 0.999, 0.857, respectively. Controllable factors this study solution pH, temperature, dosage, mixing speed, initial concentration. optimum working parameter values for be 5.5, 30 ºC, 3 g/L, 200 rpm, 10 mg/L concentration, stirring kinetics modelled pseudo-first order pseudo-second equations. indicate that, pseudo-second-order kinetic model gives (R2mean = 0.997) pseudo-first-order 0.971). characterized some instrumental analyses such SEM, EDS, FTIR, zeta potential measurements. In regeneration phase study, desorption efficiency 95.86% at pH 1.5.