Conversion of Solid Waste to Refuse Derived Fuel Using Biodrying Badrus Zaman (1), Nurandani Hardyanti (1), Budi Prasetyo Samadikun (1), May Setya Restifani (1), Purwono (2*)
(1)Department of Environmental Engineering, Faculty of Engineering, Diponegoro University, Semarang - Indonesia 50275
(2)Center for Science and Technology, IAIN Surakarta, Sukoharjo, Central Java, Indonesia 57168
Abstract
Municipal Solid Waste (MSW) in Indonesia come from urban settlements, markets and industries. MSW decompose naturally and without being used at all. The purpose of this study to convert MSW to refuse derived fuel (RDF) using biodrying. The research was conducted on a laboratory scale using a biodrying reactor. The biodying process takes place aerobically with air flow rate of 6 L/min, the highest temperature reaches 60oC on the third day and the water content on the 21st day is 32.65%. The final RDF calorific value is 6,102.82 cal/g, this calorific value is equivalent to low-energy coal (brown coal). RDF from MSW can be applied to the cement industry that requires heat> 6000 cal/g, PLTU requires 5242 cal/g, metal industry requires 6000 cal/g, and paper industry requires 5240 cal/g to carry out the production process.
