.Removal of Mercury from Aqueous Solutions

Abstract--Japanese cedar (Cryptomeriajaponica D. Don) wood powder was carbonized at varying temperatures from 400 ° to 2,400°C and used to remove mercury from 5 ppm mercuric chloride solutions. The removal efficiency of the carbonized wood materials changed depending on the carbonization temperature. The carbonization temperatures that provided wood powder with high removal capacity ranged from 600 ° to 1,400°C. Low removal of mercury from t,he aqueous solutions was observed for carbonization temperatures below 400 ° and above 1,600°C. The specific surface area of the carbonized wood materials was highly correlated with the capacity to remove mercury