Adsorption of Pb(II) Ions Using Tuna Fish Bones Coated by Sodium Alginate

• Main Author: PERDIANTO (NIM : 10513034), JERRY
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/28263
• Institution: Institut Teknologi Bandung

<p align="justify">Pb(II) ion is one of the heavy metal ions that are harmful to living things because carcinogenic. The aim of this study is to investigate Pb(II) removal from an aqueous solution by adsorption using tuna fish bones (Euthynnus affinis) coated with sodium alginate as a new adsorbent. The physical characterizations of adsorbent from tuna fish bones coated by sodium alginate were carried out using Fourier Transform Infrared (FTIR) and Scanning Electron Microscope (SEM) analysis. Effect of adsorption parameter such as pH, adsorbent mass, contact time, and initial concentration of Pb(II) were studied. The experimental results showed that the optimum composition ratio of tuna fish bones and sodium alginate was 1:4 (w/w). The optimum condition of adsorption using 0.15 gram of adsorbent was achieved at pH 4, initial concentration of Pb(II) ions was 2000 ppm, and 120 minute contact time. The adsorption process of Pb(II) ions were fitted Langmuir adsorption isotherm model, with a maximum adsorption capacity is 370.37 mg g-1 at 25 oC. The kinetic studies showed that adsorption of Pb(II) ions followed the pseudo second order kinetics model. The adsorption process occurred endothermic with &#916;H = 13.466 kJ mol-1, and &#916;S = 0.0498 kJ mol-1K-1.<p align="justify">