Pembuatan dan Penggunaan Bulir Kalsium Alginat-PVA (Polivinil Alkohol) untuk Adsorpsi Ion Cd(II)

Cadmium is widely used in electroplating, batteries, plastics, and paints. a toxic element for humans, affecting mainly the kidneys skeleton. Adsorption an easy, effective, inexpensive method removing metal ions wastewater. In this research, we have synthesized calcium alginate-PVA beads as Cd (II) ion adsorbent. The adsorbent characterization was carried out using Fourier Transform Infrared Spectroscopy (FTIR) Scanning Electron Microscopy-Energy Dispersive (SEM-EDS). Determination of adsorption conditions includes composition adsorbent, pH, contact time, mass. results showed that optimum on are pH 4, time 4 hours, mass 0.2 grams 25 mL volume solution batch system. Cd(II) followed by Langmuir isotherm model pseudo-second-order kinetics model.