NOVELTY - Processing (M1) organic waste containing biodegradable plastics, comprising hydrolyzing organic waste containing biodegradable plastics by diluting with water, carrying out methane fermentation of hydrolyzed decomposed product under anaerobic conditions, and recovering methane gas generated at methane fermentation process is new.    USE - (M1) is useful for processing organic waste containing biodegradable plastics (claimed).    ADVANTAGE - (M1) enables effective recycling in easy and reliable manner. (M1) is efficient, rapid and simple. (M1) has outstanding recycling ability. (M1) can recycle a large amount of organic waste containing biodegradable plastics. Methane gas can be recycled as useful resources. The apparatus for processing organic waste containing biodegradable plastic is easily installable. (M1) can be implemented in industries and to improve global environment from problems of waste treatment.    DETAILED DESCRIPTION - Processing (M1) organic waste containing biodegradable plastics, comprising:    (a) hydrolyzing organic waste containing biodegradable plastics by diluting with water (25);    (b) carrying out methane fermentation of hydrolyzed decomposed product under anaerobic conditions; and    (c) recovering methane gas (7) generated at methane fermentation process.    Alternatively, the method comprises:    (a) classifying the organic waste containing biodegradable plastics as fermentable (3) and non-fermentable;    (b) hydrolyzing non-fermentable organic waste (4) by diluting with water;    (c) carrying out methane fermentation of hydrolyzed decomposed product on anaerobic conditions; and    (d) recovering methane gas generated at fermentation process.    An INDEPENDENT CLAIM is included for processing apparatus of organic waste containing biodegradable plastics.    DESCRIPTION OF DRAWING(S) - The figure shows process profile figure of organic waste recycling.    Combustible-refuse (1)    Fermentable organic waste (3)    Non-fermentable organic waste (4)    Adjustment tank (5)    Methane fermentation tank (6)    Methane gas (7)    Water (25)