TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The low concentration alcohol is produced from maize straw by crushing the straw; distilling the material by placing the crushed maize straw into a retort for 5-10 minutes; heating at 70 degrees C and then taking it out; mixing with 50 wt.% slag charge of maize straw, and drying at 15 degrees C; adding yeast and culturing at 32 degrees C; adding yeast into the water with 3 degrees Brix, agitating and standing for 30 minutes; adding 0.8 wt.% yeast into the dried material; turning over, agitating uniformly and stacking, where the water content in the slag charge of maize straw is 70%; adding 20-25 wt.% vinasse into the tank when agitating in order to improve the acid degree of the slag charge of the maize straw; putting it into the tank and fermenting to cover 10 mm vinasse at the bottom of the tank before the slag charge of the maize straw enters into the tank; filling the uniformly agitated slag charge of the maize straw into the fermentation tank, where the temperature of the introduced material is 13-15 degrees C; after filling the material, using plastic film to cover the tank and pressing the periphery to make it form the anaerobic condition in the tank, where the condition is good for fermentation, and the observing and recording of the fermentation tank temperature is to observe the temperature in the tank in a certain time every morning and afternoon from the next day of adding the material until the material is discharged; and increasing the temperature in the tank day by day until reaching 34-35 degrees C after 3-4 days. When the temperature stopped raising and recovering, it means the fermentation process is over. When it is over, the material enters into the retort for traditional distillation process. When adding the material into the retort, it needs to be light, loose, thin, uniform, stable, no air compressing and no air collaborating. After adding the material, a cover is placed and the retort is sealed. The steam is condensed to produce the alcohol and flows out from the condenser. The produced 50 degrees C low concentration alcohol is used as raw material of ethanol fuel. The straw vinasse is used as feed for cattle, sheep, goose and duck directly. Every cattle is fed with 10 kg straw vinasse every time. The straw vinasse and dry maize straw are fed to the cattle at 50 wt.%. Salt, maize powder, bone powder, wheat bran and dregs of beans are added to fine fodder. The fermented cattle excrement used for feeding earthworm is made as earthworm bed which is 50 m long, 5 m wide and 0.2 m thick. Little earthworm is placed on the side of the bed. The earthworm enters into the excrement bed to grow and breed. The excrement bed has certain moisture. Plastic film and mat are used to cover the bed and used as shade. The temperature in the excrement bed is above 8 degrees C to guarantee the normal growing of the earthworm; and the breeding of the earthworm in the entire year is realized. The earthworm is taken to be the fine fodder to feed chicken, duck and fish and it replaces the vinous harmful additives. The earthworm is used as fertilizer to improve the fertilization of the land, and realize the zero discharging after the maize is comprehensively utilized.