DESIGN OF REFUSE DERIVED FUEL (RDF) PROCESSING FACILITY FOR WASTE TREATMENT AT TEMESI FINAL DISPOSAL SITE, GIANYAR REGENCY, BALI

• Main Author: Alif Prakoso, Dhany
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/51245
• Institution: Institut Teknologi Bandung

Temesi Final Disposal Site (TPA) is Gianyar District’s final disposal site. This facility should be serving 7 sub-districts in Gianyar District, Bali, which have more than 500.000 citizen. But in reality, since 1994 until 2018, it only has served and focus on the town center, the capital district of Gianyar, Gianyar City, Bali. In 2012, after TPA Temesi rehabilitation and land opening about 0.67 ha with loading capacity estimated, 79.000 m3, it’s planned to be operate until 2019, but, in fact, it’s already overloaded before 2019 which made them to transfer their waste in the landfill to the Regional Final Disposal Site Sarbagita (Denpasar-Bangli-Gianyar-Tabanan), TPA Suwung, stopping the operation of waste transferring in TPA Temesi for compacting the waste and relocate/rearrange the waste in the landfill, limiting the waste input from outsources (input from the Environmental Office or DLH only), condemnation for landfill about 0.3 ha wide on Mei 11th 2018, and until two illegal temporary disposal site (TPS) have been discovered. In fact, more than 4 ha land for the TPA is not enough to accommodate some of Gianyar District’s waste, about more than 400 m3 or more than 70 tons daily, and at the end, it’s shut again on December 20th 2018. There’re more than 100 outsourcing transportation, trucks and some pick up, from every sub-districts, but in case of limited land in the disposal site, there’re only more than 20 vehicles that being allowed to dump their waste in TPA daily (more than 190 m3 or more than 34 tons per day) in order to reduce the waste input and keep the landfill usage in state of capable to accommodate waste from the Environmental Office (DLH) of Gianyar District’s service area. DLH of Gianyar District has 34 vehicles, 7 tricycles/VIAR, 2 Arm Roll Trucks, and 25 Dump Trucks, which ready to serve 7 routes around the Gianyar City and other sub-districts especially the local markets, tourism areas, and other commercial areas. Today, The Temesi Waste Processing Facility (FPST) can refine about 20-35 tons organic waste daily or in equal of 5-6 dump trucks and the output of refinery process or residues is about 1 dump truck a day (2-4 tons). It’s actually still far from goal, refine all the waste input in TPA, more than 70 tons. Plus, there’re no weighing bridge to accurately calculate the waste input because they still use the conventional way to predict the waste generation by write down and memorize all the transportations that already threw their waste in the landfill. So, it’s going to be hard to plan and develop the site because of there’ll be lots of human error and the data validation also can be questionable. In average, based on the sampling result, according to Indonesia’s National Standard (SNI) 19-3964-1995, the waste composition in Gianyar District’s is dominated by organic (food waste, wood and garden waste) at about 57.07%, inorganic (paper and cardboard, plastic, glass, textile, rubber and leather, and metal) at about 34.21%, and the rest is residue (hazardous and other types), 8.72%. Hopefully, with the RDF Processing Facility, it can help the TPA to process all the waste and derived it into fuel which equal or even more valuable than coal, Refuse Derived Fuel (RDF) especially RDF-5. So, TPA Temesi can also help the Coal Fired Steam Power Plant (PLTU) or other industries and power plant which need coal alternative in order to reduce the coal usage to save the environment, reducing the green house gases emission with waste to energy (WTE) processing facility.