COPPER AND MANGANESE HEAVY METAL IONS FROM ACID MINE DRAINAGE USING BONTANG CLAY


 Clay mineral is known as a good adsorbent on metal ions. This study aimed to determine Bontang clay adsorption capacity Cu(II) and Mn[II] heavy ions contained in acid mine drainage. In this study, was calcined at 600-700 ºC characterized by Fourier Transform Infrared Analyzer (FTIR), X-Ray Diffraction (XRD), Surface Area (SAA). FTIR characterization shows the presence of active groups silanol (Si-OH) aluminol (Al-OH) act adsorbent. XRD demonstrated montmorillonite, kaolinite, illite quartz. SAA revealed that after activation greater than before activation, amount 34.793 m2/g for pre-activation 49.859 post activation. Calcination improved adsorptive capability Cu[II] Mn[II]. Maximum percentage raw were 96,53% 94.67% initial concentration 10 mg/dm3 they 74.91% 32.82 % Mn[II. They decreased 7.2% 8.3% 4.3% 6.8% 5,000 mg/dm3. The higher lower concentrations both Cu[II Mn[II].