METHOD FOR GENERATING HYDROGEN GAS AND METHANE GAS FROM HIGHLY-CONCENTRATED WASTEWATER

摘要

PURPOSE: Provided is a method for generating hydrogen gas and methane gas from highly-concentrated wastewater by continuously or intermittently introducing digested granular sludge into wastewater. CONSTITUTION: The method comprises the steps of (a) introducing water-soluble granulation accelerator into sludge in a granular sludge generation tank to produce granular sludge, (b) introducing the granular sludge into an acid generation tank, thereby generating hydrogen gas in the acid generation tank by decomposing organic material using anaerobic microorganisms, and (c) introducing decomposed organic acid and granular sludge into a methane generation tank, and (d) generating methane gas in the methane generation tank by interaction of microorganisms in sludge.