Rubber seed shells (Havea brasilliensis) contain fiber and various carbon compounds such as cellulose, hemicellulose and lignin which are potentially used as adsorbents. In this study, rubber ore shell (ACBK) adsorbent was carbonized at 500 ° C for 15 minutes. The charcoal produced was characterized to determine water content, ash content, functional groups (FTIR), surface area analysis (BET) …