Method for improving anaerobic digestion efficiency of organic wastewater and application thereof

The invention provides a method for improving anaerobic digestion efficiency of organic wastewater and application thereof, which belong to the technical field of anaerobic digestion of organic wastewater. According to the method, the dodecyl dimethyl betaine is added into the organic wastewater anaerobic digestion system, so that the activity of hydrogen-producing acetogens and methanogens in the anaerobic digestion system is greatly improved, the degradation rate of propionic acid and acetic acid is improved, the anaerobic digestion system can be recovered from acidification, and the methanogenesis rate is improved in anaerobic digestion. 本发明提供了一种提高有机废水厌氧消化效率的方法及其应用，属于有机废水厌氧消化技术领域。本发明通过在有机废水厌氧消化体系中添加十二烷基二甲基甜菜碱，大幅度提高了厌氧消化体系内产氢产乙酸菌和产甲烷菌的活性，从而提高了丙酸和乙酸降解速率，有助于厌氧消化体系从酸化中恢复，在厌氧消化中提高产甲烷速率。