The Analysis of Production Potential and Energy of Refuse-Derived Fuel (RDF) Based on Household Waste Generation as Co-Firing Material for Coal Boilers: Studi Kasus: TPS 3R Rejo Lestari, Desa Tegalrejo

Abstrak

ABSTRACT [Analysis of Production and Energy Potential of Refuse-Derived Fuel (RDF) Based on Household Solid Waste Generation as Co-Firing Material for Coal Boilers (Case Study: TPS 3R Rejo Lestari, Tegalrejo Village)]. Waste management issues and fossil energy dependency represent two primary challenges of sustainable development in Indonesia. This study aims to analyze the production potential of Refuse-Derived Fuel (RDF) and its energy value based on household solid waste survey data at TPS 3R Rejo Lestari, Tegalrejo Village, and evaluate its feasibility as a co-firing material replacing coal in industrial boilers. Methods include solid waste generation surveys based on SNI 19-3964-1994, waste composition analysis, fuel characterization testing (proximate analysis and calorific value using bomb calorimeter), and mass-energy balance calculations. Survey results show total waste generation of 614.56 kg/day, dominated by household waste (99%). With an RDF-eligible fraction of 45% and process efficiency of 85%, the RDF production potential reaches 235.1 kg/day or equivalent to 84.6 tonnes/year. The measured RDF calorific value is 3,522 kcal/kg with moisture content of 4.84% and ash content of 12.5%, yielding an energy potential of 1.26 TJ/year. The coal substitution potential (calorific value 5,000 kcal/kg) reaches 60.6 tonnes/year. Sensitivity analysis shows that increasing the RDF fraction and process efficiency can increase substitution potential by up to 40%. This research demonstrates that village-scale TPS 3R-based waste management has significant potential in supporting energy transition through co-firing schemes, while contributing to landfill waste reduction and CO₂ emission reduction.

Kata kunci

• Co-firing batubara
• RDF
• TPS3R
• Timbulan Sampah