A biodigester is a machine used for the production of biogas, a mixture of gases created by methanogenic bacteria digesting organic matter in an anaerobic condition. A biodigester is often also referred to as a biogas chamber, a biogas plant or an anaerobic reactor. Biogas is used as a substitute for natural gas and propane in a range of situations from cooking, heating, and lighting, to electricity generation, and vehicle fuel. Biodigesters also produce an effluent slurry that is used as a fertilizer in a range of agricultural applications. Biodigesters are used in many countries to process animal and certain plant agricultural waste. They can also be used as a sanitation system for the processing of human waste. Biogas, also called digester gas, typically refers to methane produced by the fermentation of organic matter including manure, wastewater sludge, municipal solid waste, or any other biodegradable feedstock, under anaerobic conditions. ... Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ... Look up Anaerobic in Wiktionary, the free dictionary. ... Anaerobic digesters are used to create anaerobic, meaning without oxygen, conditions so that anaerobic bacteria can efficiently digest biomass, sewage or other organic matter. ... Many stoves use natural gas. ... Propane is a three-carbon alkane. ...

Digester types

Construction methods for biodigesters are numerous. The fundamental principle is that the biodigestor is airtight and watertight. Types of Biodigesters include: Floating Drum Digesters, Fixed Dome Digesters, Deenbandhu Digesters, Bag Digesters and Plug Flow Digesters.