Whether based on a large scale instead of conventional fossil fuels, and biomass will be divided into traditional and modern biomass. Including traditional biomass energy use in rural life: firewood, straw, rice straw, rice husk and other agricultural production and animal manure and other waste; modern large-scale application of biomass is biomass, including modern forestry production of waste, bagasse and municipal solid waste.
According to different sources, would be suitable for biomass energy use into forestry resources, agricultural resources, domestic sewage and industrial organic wastewater, municipal solid waste and animal manure and other five categories.
(1) Forest Resources forest biomass resources is the process of forest growth and forest production to provide biomass sources, including firewood in the forest tending and thinning operations in scattered timber, residual branches, leaves and wood chips, etc.; timber harvesting transport and processing of the branches, sawdust, wood chips, Shaotou, slab and cut top; forestry by-products of waste, if the shell and stone, etc.
(2) agricultural resources agricultural biomass resource is agricultural crops (including energy crops); agricultural production process waste, such as when left in the fields harvesting crops within the crop stalks (corn stalks, sorghum stalks, wheat straw, rice straw, Doujie and cotton stalks, etc.); agricultural processing waste, such as the agricultural production process in the remaining rice husk, etc. Energy refers to a variety of plants to provide energy, plants, usually herbaceous energy crops, including, oil crops, extraction of hydrocarbons and other types of plants and aquatic plants.
(3) of domestic sewage and industrial organic wastewater sewage mainly by urban residents, commerce and services a variety of drainage component, such as cooling water, shower drain, toilet drain, laundry drain, kitchen drain, waste water and so on. Industrial organic wastewater is mainly alcohol, wine, sugar, food, pharmaceutical, paper making industry and slaughter of the production process of the wastewater, etc., which are rich in organic matter.
(4) municipal solid waste, municipal solid waste mainly by the urban living garbage, commercial garbage service and a small amount of construction waste and other solid waste composition. Its composition is complex, affected by the average standard of living of local residents, the energy consumption structure, urban construction, natural conditions, customs and traditions as well as seasonal changes and other factors.