The Properties ofActived Charcoal from Treestump ofAcacia crassicarpay

Stump wastes of the failed tree Acacia crassicarpa are notyet used although they are available in large quantity. Converting the stump into actived charcoal mqybe one of the most possible uses of the treestump. This experiment investigatestheproperties of actived charcoal madefromAcacia crassicarpa treestump. The treestump u/as carbonized into charcoal, then activated l?J immersingin I-IPO solution 1vith concentration of 5% and 10% for 90 minutes. The treated charcoal iuas then heated in retort at various temperatures of 65(/C, 750'C and 850°C.The result showed thatgood quality of activated charcoaliuas obtained l?J using 10% HJP04 at temperature 750°C. Theyield of the activated charcoal at this condition tuas 57%, water content 0,49%, volatile matter 7,371Yo, ash content 4,22%, fixed carbon 88,41%, adsorptive capacity of iodine 1115,5 mg/g, adsorptive capacity of benzene 25,52%, adsorptive capacity of cioroform 41,29% and adsorptive capacity of formaldebyde 45,91%.These characteristics met the SN! requirements and the charcoal can be usedfor waterpurification.It can increase pH of n/aterfrom 5,63 to 6,9 and reduce metals Fe and Zn respective/yfrom 0, 6 00 and 0, 0 3 7 mg/L into 0, 4 24 and 0, 024 mg/L The structure of charcoal is more reguler after activation.