TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The step (2) (to stimulate germination of anaerobic hydrogen-producing bacteria and to contain activeness of hydrogen-utilizing bacteria) comprises treatment of placing weed or cattle dung compost in a fermenter (with temperature adjusted at 80-90 degrees) for three hours, mixing the weed or cattle dung compost in reverse osmosis water with the weight ratio of 0.5-1.5/0.5 1.5/10 and stirring the mixed solution, letting it to settle down and taking the upper layer of the solution as a seeding material.The step (3) (batch reacting treatment) comprises placing organic waste in dry condition, seeding material and nutrient (in a ratio of 1/12.5/0.4-0.50) in a thermostatic batch reactor, adding pure water in the materials and adjusting the density to 2-5%, adjusting the temperature of the reactor to 35-45 degrees, exposing the mixed gas of carbon dioxide and nitrogen (with the pressure ratio of 3/7) on the inner surface of the liquid in the reactor, sealing the cap of the reactor and disconnecting the gas exposing device to prevent air from flowing. Hydrogen production begins in 1-3 days and stops in a week or so.The nutrient materials in step (3) comprise ammonium acid carbonate (500-600 mg/l), potassium dihydrophosphate (35-45 mg/l), magnesium sulfate (3-5 mg/l), sodium chloride (0.3-0.5 mg/l), sodium molybdate (0.3 to 0.5 mg/l), calcium chloride (0.3-0.5 mg/l), manganese sulfate (0.5-0.7 mg/l) or ferrous chloride (0.10-0.15 mg/l).The favorable conditions for the batch reactor in step (3) are: iron ion density (100-150 mg/l), ammonium ion density (500-600 mg/l), phosphate ion density (1400-1800 mg/l), beginning pH value of 6.0-6.5, horizontal and have rotating speed (25-35 rpm/m) along the horizontal axis and the temperature at 35-45 degrees.The initial conditions of continual reactor are: the solid density of basic material being 2-5%, volume ratio of the basic material and the seeding material being 1/3-1/5, the volume ratio of nutrient and basic material being 1/15-1/20, the rotating speed of the reactor being 30-100 rpm/m and the temperature to be at 35-45 degrees. The basic material is a substance generating energy (weeds, compost or waste). EXAMPLE - No example given.