With the collaboration and understanding of the citizens, Kyoto
City systematically collects waste edible oil from households
and converts it to diesel fuel through a reaction with methyl
ester.
This diesel is used to power all 220 waste collection vehicles
operated by the city.
And because this bio-fuel produces much less
sulfur oxide and black smoke than gas oil, its environmental
effect should not be overlooked.
This project is indeed significant in that it effectively utilizes
waste edible oil, which is difficult to dispose of, and stands
as a good example of a successful recycling program involving
all citizens.