Sustainable lean supply chain design in the refuse derived fuel production process at teaching factory Gunung Putri district

Waste management in Ciangsana Village still uses the concept of collect-transport-dispose, piles of garbage, and limited land for landfills, causing a waste processing site to minimize the amount of waste sent to the landfill. Waste management piled up in open dumping causes environmental damage such as air and water pollution, unpleasant odors, and causes disease. The teaching factory is expected to solve waste management problems by converting waste into Refuse Derived Fuel (RDF). This research aims to map the waste management supply chain in Ciangsana Village, design and analyze a sustainable and efficient supply chain following the needs of the teaching factory and evaluate the waste management supply chain in Ciangsana Village. The stages of this research began with conducting field studies, mapping the current waste management supply chain in Ciangsana Village, then conducting a Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis to design an effective waste management supply chain strategy following the needs of the teaching factory, the efficiency of supply chain selection decisions using a preference matrix. Next, sustainable value stream mapping and waste identification using process activity mapping were designed. The calculation of the sustainability index and the design of logistics components is carried out, then the waste management supply chain evaluation in Ciangsana Village is carried out. Waste management still needs a place to process waste into value-added goods. The results of the supply chain measurement show that the best waste management supply chain is sorting waste from the source. The evaluation results indicate the need to design sustainability indicators for inbound and processing RDF products.