Food waste, thinned wood and branch materials as biomass energy 2001.05.20

Biomass energy has been attracting attention as a new energy source as a waste treatment. Biomass is the idea of an organic organism as an energy resource, in addition to plant resources, such as human waste urine, garbage from plants and animals, etc. are also included. The use of biomass energy, which is currently considered, is based on incineration heat utilization, gasification by pyrolysis, methane fermentation, and alcohol fermentation. As for the use technology, the use of heat by direct incineration and the methane fermentation of organic wastes has been put into practical use, but in the food factory, the case of adopting methane fermentation technology is increasing in response to the food waste recycling law.

Approximately 2.7 billion yen has been organized for the development and dissemination of biomass energy in the environment-related budget of the country in fiscal 2001. On the other hand, the Ministry of Health, Labour and welfare has processed human waste and raw garbage, and launched the "Sludge Regeneration treatment center Concept" to recycle methane gas and compost, and issued a subsidy only for the recycling type of new human waste treatment facilities from fiscal 1998. Therefore, the municipality is looking for a mechanism that can recycle from both sides of the garbage disposal and human waste processing.

In addition, the "Renewable Energy Promotion Law" under consideration for legislation is also touted to promote the dissemination of solar and wind power and biomass energy. 19 million tons of food waste per year, and waste material discarded from construction sites is 17 million tons annually. Only biomass resources that are currently being treated as waste rise to this amount. In addition, the forest area of the current Japan is about 25 million hectares. The forest resources that grow over the years are about 100 million cubic meters Sweden. According to assets such as ministry, the Japan has been left in mountainous areas for about 6 million cubic meters of thinned wood and branch materials. We consider these to be energy resources, and if we plan to proceed deforestation and reforestation, we can diversify energy sources and preserve forests. It also leads to the promotion of forestry, which is declining steadily.