KAJIAN PENYERAPAN LOGAM BERAT AIR RAKSA (Hg) DENGAN MENGGUNAKAN KARBON AKTIF BATUBARA SUB-BITUMINUS YANG DIKARBONISASI (COALITE)

One of diversification usage of coal is made for carbon active. the main element in coal which is very useful for carbon active is carbon (c) as other raw materials such as bone, coffee bean, coconut shell, etc. this research used carbonized coal from pt.bukit asam as a media to absorb methyl mercury (ch3hg+2) solution. the carbonized coal has an iodine number of ± 386 mg/gram after it was activated at 900°c for 1 hour. it has an adsorption level of 70-80% because the sem photograph showed a pore size of coarse fraction higher than fine fraction. the degree of saturation was influenced by the grain size of the coal carbon active where the saturation degree of coarse fraction was relatively faster than the fine fraction. moreover, weighter and bigger debit of carbon active could adsorp higher mehg concentration.