| abstract |
PROBLEM TO BE SOLVED: To overcome the disadvantages of a conventional methane generation method using a two-phase methane generator, to effectively use the heat generated by methane fermentation, to improve the efficiency as an autonomous methane generation method, A method that makes it possible to discharge wastewater into a river by increasing the removal rate of COD, total nitrogen content, and total phosphorus content in the digestion and desorption liquid in the fermentation method, and decreasing the content of ammonia nitrogen. provide. SOLUTION: In a method of generating methane by continuously performing acid fermentation and methane fermentation on organic substance-containing wastewater, a generating device in which an acid fermentation unit and a methane fermentation unit are integrally configured through a partition wall is used. At the same time, a generation mechanism of heat and electric energy is arranged in the generator to supply necessary electric power and supply heat necessary for heating the fermentation liquid of methane in this method. [Selection figure] None |