NOVELTY - Anaerobic digester (130) adapted for production of fertilizer and biogas, comprises: a container comprising a set of panels and panel holders; at least one sink (102) having a drain into which organic material is deposited; a grinder (104) at throat of drain; a flexible tank serving as an anaerobic digester in fluid communication with the drain; a pipe allowing disposing of the content of the flexible tank serving as an anaerobic digester; an overflow pipe; a flexible tank serving as a gas reservoir (120) in fluid communication with the digester; and gas distribution means.    USE - The anaerobic digester is useful for production of fertilizer and biogas, where the gas is useful for lighting, electricity generation, motive power, combustion, cooking, heat production, air heating and water heating (all claimed).    ADVANTAGE - The digester: has fertilizer production rates of 8 l/day and gas production rates of 1 m3/day from a single-household waste stream (claimed), thus exhibiting high production rates; produces both organic fertilizer and biogas; stores the biogas in an explosion-proof pressure-vessel of controlled maximum pressure; produces fertilizer and biogas at accelerated rates; and is suitable for home use.    DETAILED DESCRIPTION - Anaerobic digester (130) adapted for production of fertilizer and biogas, comprises: a container comprising a set of panels and panel holders; at least one sink (102) having a drain into which organic material is deposited; a grinder (104) at the throat of the drain adapted to grind the organic material into a slurry; a flexible tank serving as an anaerobic digester in fluid communication with the drain adapted to receive the slurry and non-household organic material and to facilitate a population of anaerobic bacteria which decomposes the materials into a liquid part and a gaseous fraction; a pipe allowing disposing of the content of the flexible tank serving as an anaerobic digester; an overflow pipe; a flexible tank serving as a gas reservoir (120) in fluid communication with the digester adapted to collect gas from it and store the gas, where the gas tank is been pressured by at least one weight placed upon it; and gas distribution means adapted to distribute the gas from the gas reservoir, where both biogas and fertilizer are produced and collected by the anaerobic digester. INDEPENDENT CLAIMS are also included for:    (1) an anaerobic digester adapted for production of fertilizer and biogas comprising: the sink having the drain; the grinder at the throat of the drain; an anaerobic digester in fluid communication with the drain adapted to receive the slurry and facilitate a population of anaerobic bacteria which decompose the organic material into a liquid part and a gaseous fraction; a liquid collection mechanism adapted to collect the fraction which comprises fertilizer; a gas reservoir in fluid communication with the digester adapted to collect gas form it and store the gas in an inner chamber, where the inner chamber is surrounded by fluid and open on its bottom; the gas distribution means; and    (2) production of fertilizer and biogas comprising: providing the sink having the drain into which organic material is deposited; grinding the organic material at the throat of the drain using a grinder adapted to grind the organic material into a slurry; digesting the slurry in an anaerobic digester in fluid communication with the drain adapted to receive the slurry and facilitate a population of anaerobic bacteria which decompose the organic material into a liquid part and a gaseous fraction; collecting the liquid fraction of the digester, where the liquid fraction comprises fertilizer; collecting the gaseous fraction of the digester in the gas reservoir in fluid communication with the digester adapted to collect gas from it and store the gas in the inner chamber; and distributing the gas using gas distribution means adapted to distribute the gas from the gas reservoir.    DESCRIPTION OF DRAWING(S) - The figure illustrates a side view of anaerobic digester.    Sink (102)    Grinder (104)    Substrate (107)    Gas reservoir (120)    Digester (130)