NOVELTY - Producing vehicle methane gas from high-concentration organic wastewater comprises mixed heating, anaerobically fermenting using an effective microorganism expansive strain or to obtain an expansive sludge strain, storing the methane produced by means of anaerobic fermentation, purifying the methane via a methane purifying apparatus, compressing the purified methane in a compression apparatus to obtain vehicle methane gas and recycling and depositing the waste liquid after the anaerobic fermentation reaction.    USE - The method is useful for producing vehicle methane gas from high-concentration organic wastewater.    ADVANTAGE - The method: uses variety of the microorganism species in a reactor; produces 5.13 m3 of methane from 1 m3 of starch wastewater, 55 m3 of methane from 1 m3 of cassava alcohol wastewater, 37.8 m3 of methane from 1 m3 of molasses alcohol wastewater, and 60 m3 of methane from each tone of cassava residues; has chemical oxygen demand removing rate of the starch alcohol wastewater of 95% and of molasses alcohol wastewater of 70%, and use rate of the waste residue of 95%. The wastewater after recycling the methane is suitable for agricultural irrigation. The waste residue is processed to organic fertilizer by means of biological fermentation technique, so that the waste can become profitable.    DETAILED DESCRIPTION - Producing vehicle methane gas from high-concentration organic wastewater comprises :(i) uniformly mixing alcohol waste liquid, starch wastewater, organic waste liquid and pyrolytic waste residue, then heating to 35-40 degrees C for curing; (ii) anaerobic fermentation including, mixing and adding microorganism bacteria group into an eddy, laminar flow and pulse flow type anaerobic organism reactor for performing fast anaerobic fermentation, where the microorganism bacteria group is an effective microorganism bacteria group provided by Japanese Ryukyu university, culturing the effective microorganism bacteria group for 3-7 days by using a liquid medium or a solid medium and a seal container under 15-25 degrees C at the pH 3-5 to obtain an effective microorganism expansive strain, in which the ratio of the additive amount to sewage is at 1:1000-10000 by weight; or using cassava alcohol wastewater, molasses alcohol wastewater, biological sludge bacteria of sludge itself at bottom of a sewage oxidation pond for performing enrichment acclimation cultivation, taking 1/3 of quality of each kind of sludge, culturing for 3-7 days by using the liquid medium or the solid medium and the seal container under 15-25 degrees C at the pH 3-5 to obtain an expansive sludge strain, in which ratio of the additive amount to the sewage is at 1 : 2000-20000 by weight, where the biological sludge bacteria is the bacteria group capable of efficiently producing methane fit for high-concentration organic wastewater treatment; (iii) storing the methane produced by means of anaerobic fermentation for future use; (iv) methane purification: purifying the methane via a methane purifying apparatus; (v) compressing the purified methane in a compression apparatus to obtain vehicle methane gas; and (vi) recycling and depositing the waste liquid after the anaerobic fermentation reaction, producing organic fertilizer by the deposited material according to a regular method, and obtaining recycling water or irrigating water after performing the aerobic reaction to the waste liquid.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the device used for producing vehicle methane gas from high-concentration organic wastewater.    Anaerobic fermentation tank (21)    Heat exchanger (22)    Mixed pond (23)    Sedimentation tank (25)    Aerobic system (26)