NOVELTY - Anaerobic digestion device comprises: a digester body (110) configured to receive organic waste; plates coupled to one another so as to divide an interior volume of the digester body into compartmentalized chambers which are movable relative to the digester body to advance a slurry of the organic waste along a length of the digester body; and ports (150) spaced along the digester body and arranged to vent biogas from the digester body.    USE - For anaerobic digestion of organic waste (claimed).    ADVANTAGE - The device has an inexpensive and easy-to-build compartmentalized anaerobic digester that gives an operator more control of the digestate through temperature and pH adjustment. Such control may be achieved by adjusting speed of movement of the slurry/digestate through the digestor, thus varying the length of digestion time. Control of the digestion process can also be achieved by smaller batches/segments within the compartmentalized chamber.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) anaerobic digestion of organic waste, involving: receiving organic waste into one of compartmentalized chambers of a digester body; moving the compartmentalized chambers relative to the digestor body during the digestion process; collecting biogas from the one chamber at various ports spaced along a length of the digester body; and outputting a digestate from the digester body; and    (2) anaerobic digestion system (100), comprising: the anaerobic digestion device; a storage vessel (170) configured to receive and store biogas received from the digester body via the ports; and a heating system configured to heat the digester body, and being fuelled by the biogas vented from the digester body.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of an anaerobic digestion system.    Anaerobic digestion system (100)    Anaerobic digester body (110)    Ports (150)    Hydrogen sulfide scrubber (160)    Expandable storage vessel (170)