STUDI PENURUNAN TOTAL PETROLEUM HYDROCARBON (TPH) PADA OIL SLUDGE DENGAN COMPOSTING BIOREMEDIATION

Oil sludge is residu formed by oil contaminant accumutation and precipitation. It containts Petroleum Hydrocarbon (PERTAMINA, 2001) which is toxicious, thus, it needs to be treated to prevent environmental polution. Bioremediation is the application of biological process principles to the treatment of groundwater, soil, and sludges contaminated with hazardous chemicals (Cookson, 1995). Compost is used in bioremediation process because it provides micronitrition for soil and increases soil microorganism composition. The objectives of this research were to find out the concentration of Total Petroleum Hydrocarbon (TPH) after bioremediation by using Tree and Glodogan leaf compost, and to find out the optimal dose of Tree and Glodogan leaf compost-using for oil sludge’s TPH degradation. This research resulted the oil sludge’s TPH removal in bioremediation process for 8 weeks using 10%, 20%, 30%, 40%, and 50% Tree and Glodogan leaf compost from total bioremediation mixing were 57,53 %, 70,21 %, 93,43 %, 95,76 %, dan 95,55 %. The most effective dose to degrade TPH concentration was 40%. Tree and Glodogan leaf compost from total bioremediation mixing.