The Process of Biogas Production by Rice Straw

China has a wealth of straw resources, rice straw accounted for a large part. The previous approach was to discard or burn the straw, causing a variety of environmental problems. In order to solve the problem of fecal pollution produced in the development of farms, we usually use rice straw to produce biogas at present. By producing biogas, these rice straw resources can be used effectively and comprehensively. Not only to solve environmental problems, but also to improve the farmers' income. In this paper, the specific process flow of rice straw production was introduced in the aspects of rice straw pretreatment, anaerobic digestion, biogas slurry treatment and process control.