ABSTRACT Bamboo betung (Dendrocalamus asper) is one of the plant types found in Buruk Bakul village where located in Bukit Batu Bengkalis. The aim of this study was to analyze of the potential of charcoal from bamboo betung as adsorben. In this research, charcoal was made by doing carbonization of bamboo betung at 500oC for an hour and then was re-carbonize for 60 and 30 minutes. The resul…