Japan household waste

Y. Sato, K. Saito and H. Tachibana, Pyrolysis of household waste plastics. The Japan Society of Waste Management Experts, 13(2), (2002). 

BDF is eco-friendly fuel because of its non-toxicity, biodegradability, low concentration of small particulate matter and SOx in exhaust gas, and because it does not add to the amount of carbon in the total environment. In addition, conversion of waste edible oil to BDF contributes to the reduction and recycle of the waste material. These advantages have attracted attention all over the world European demand for BDF was 3.2 million tons in 2005, and estimated to double in 2006. In United States, which firstly proposed BDF, the demand was 260 thousand tons in 2005. In Japan, meanwhile, several local governments including Kyoto city produce BDF from waste edible oil to use as a fuel for public transportation, but the total demand in 2005 was only several thousand tons because of difficulty of collecting used frying oils from households. 

In Japan, about 2,500,000 tons of edible oil is consumed in a year, and about 450,000 tons of waste edible oil is discarded from food factories, and as household garbage. About 200,000 tons is collected and utilized mainly as materials for soap and animal feed. Some of the collected waste edible oil is converted into FAME and used as BDF. 

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