Method for promoting enrichment of methanothrix and/or lactic acid bacteria in kitchen waste anaerobic digestion system

The invention discloses a method for promoting enrichment of methanothrix and/or lactic acid bacteria in a kitchen waste anaerobic digestion system, and belongs to the technical field of anaerobic digestion. The cobalt-modified biochar is reasonably added into the kitchen waste anaerobic digestion system to optimize microbial communities and enhance the activity of specific microorganisms, so that the anaerobic digestion process of organic wastes such as kitchen wastes is effectively promoted. By adding the divalent cobalt ion modified biochar, the enrichment of lactic acid bacteria and methanothrix in the kitchen waste anaerobic digestion system is improved, the biogas yield is increased, and the method has important significance in optimizing the anaerobic fermentation process and increasing the biogas yield. 本发明公开了一种促进餐厨垃圾厌氧消化系统中甲烷丝菌和/或乳酸菌富集的方法，属于厌氧消化技术领域。本发明通过在餐厨垃圾厌氧消化系统中合理添加钴改性生物炭以优化微生物群落，增强特定微生物的活性，有效促进餐厨垃圾等有机废弃物的厌氧消化过程。通过添加二价钴离子改性生物炭，提高了餐厨垃圾厌氧消化系统中乳酸菌和甲烷丝菌的富集，并提高了沼气产量，对优化厌氧发酵过程、提高沼气产量具有重要意义。