PEMBUATAN ARANG AKTIF DARI CANGKANG KELAPA SAWIT DENGAN AKTIVASI SECARA FISIKA, KIMIA DAN FISIKA-KIMIA

This study was carried out to investigate the characteristics of activated carbon from coconut palm shell and also the performance of activated carbon for adsorption 0.5 N acetic acid solution. Activated carbon obtained from coconut palm shell was activated by chemical, physical and combination of physical and chemical methods. Physical activation was performed by heating the carbon at 750oC for 3 hours while chemical activation process was exhibited by immersing the carbon in ZnCl2 solution for 24 hours. Furthermore, the combination of physical-chemical activation was gained by heating carbon at 750oC for 3 hours and then immersing in ZnCl2 solution for 24 hours.The adsorption performance of activated carbon was investigated by immersing activated carbon in 0.5 N acetic acid solution for specific time. The result showed that activated carbon which was obtained by combination of physical and chemical process was the best among the other methods that mentioned earlier. The highest adsorption capacity for 0.5 N acetic acid solution was achieved 34,4% for 4 hours by using355 µm of particle size..