. . . "anaerobic digestion"@en . "A naturally occurring biochemical process in which organic\nmaterial is broken down by bacteria in an oxygen-free environment."@en . "0001-01-01T00:00:00"^^ . . "0001-01-01T00:00:00"^^ . "http://www.solarcities.eu/sites/default/files/documents/ad101-anaerobic-digestion.pdf"@en .