NOVELTY - Anaerobic digestive processing of organic waste water and/or organic waste, by performing anaerobic digestion in presence of anaerobic digestive microorganisms, and separating digestive liquor obtained with filtration membrane.    USE - (M1) is useful for anaerobic digestive processing of an organic waste water and/or organic waste. The gaseous phase part containing methane is used as fuel. The supernatant liquor and/or suspended particle concentration liquid are used as raw material of fertilizer and/or a fertilizer (claimed).    ADVANTAGE - (M1) has rapid decomposition ratio, can manufacture methane and fertilizer efficiently and simultaneously, is cost effective, and has decreased amount of sludge disposals.    DETAILED DESCRIPTION - Anaerobic digestive processing (M1) of organic waste water and/or organic waste, involves performing anaerobic digestion in the presence of anaerobic digestive microorganism-immobilized support, and separating the obtained digestive liquor with filtration membrane; or decomposing organic substance into methane and carbon dioxide in the presence of anaerobic digestive microorganisms-immobilized support, separating the digestive liquor obtained from above decomposing process to a concentrated suspended particle liquid and supernatant liquor with the filtration membrane, returning the suspended particle concentration liquid obtained by the above partition process to an anaerobic digester (3).    An INDEPENDENT CLAIM is included for anaerobic digestive processing apparatus, comprising anaerobic digestive microorganism- immobilized support accommodated in anaerobic fire-extinguishing tank, filtration membrane unit (5), and anaerobic digester comprising anaerobic digestive immobilization support, filtration unit to separate the digestive liquor obtained from anaerobic digester to a concentrated suspended particle liquid and supernatant liquor, and unit to return the concentrated suspended particle liquid to anaerobic digester.    DESCRIPTION OF DRAWING(S) - The figure shows anaerobic digestive processing apparatus.    Raw material storage tank (1)    Raw material piping (2)    Anaerobic digester (3)    Digestive-liquor piping (4)    Filtration membrane unit (5)