Development and Implementation of Waste Cooking Oil Recycling - Yakushima Kagoshima Prefecture (July 1999 to December 2024)

Development and Implementation of Waste Cooking Oil Recycling - Yakushima Kagoshima Prefecture (July 1999 to December 2024)

In Yakushima Kagoshima Prefecture a system to recycle waste cooking oil into diesel fuel was developed in the late 1990s. This system refines used cooking oil into fuel for diesel engines eliminating sulfur oxides (SOx) emissions and reducing black smoke emissions to one-third of conventional levels. Through collaboration between Kagoshima University and local companies the introduction of this fuel to publ...

**Initiatives in the 2000s**
In the 2000s Yakushima's waste cooking oil recycling technology began to spread. In 2003 the **Yakushima Environmental Energy Center** was established operating a facility capable of processing approximately 10000 liters of waste cooking oil annually. The refined biodiesel fuel (BDF) was adopted for buses operated by Yakushima Transportation Co. Ltd. and agricultural machinery under Yakushima Agricultur...

**Advancements in the 2010s**
In the 2010s waste cooking oil recycling technology advanced further. In 2012 **Yakushima Eco Energy Co. Ltd.** introduced a biodiesel fuel production plant expanding its processing capacity to approximately 30000 liters per year. This fuel was used for sightseeing buses and power generators in public facilities achieving a 40 percent reduction in CO₂ emissions compared to conventional fossil fuels. By 2...

In 2013 Yakushima was recognized by the Ministry of the Environment as a "Circular Regional Model" drawing nationwide attention. Recycled fuel became indispensable for local industries and transportation infrastructure and the initiative was widely recognized as part of eco-tourism efforts.

**Current Situation in the 2020s**
In the 2020s technological innovations and digital management systems have further improved efficiency in Yakushima's waste cooking oil recycling. Yakushima Eco Energy Co. Ltd. introduced an AI-based oil collection system improving collection efficiency by 20 percent. By 2023 the annual processing volume reached approximately 50000 liters supporting fuel supply for Yakushima Transportation Co. Ltd. and ...

Starting in 2023 recycled fuel has also been utilized for electricity generation in Yakushima's biomass power plants. This progress has firmly established waste cooking oil recycling as a central pillar of the local economy balancing environmental preservation and economic growth. Yakushima continues to serve as a leading example of sustainable resource utilization and regional development.