外源添加物调控有机废弃物厌氧发酵失稳研究进展OA

Anaerobic digestion is one of the key technologies for converting organic waste into energy,but its system stabili-ty is often affected by changes in environmental parameters.Such fluctuations may cause the accumulation of volatile fatty acids or ammonia nitrogen,resulting in system instability or even collapse.Adding exogenous substances has attracted widespread attention as an effective regulation technique to alleviate instability in anaerobic digestion systems.Based on a review of relevant research progress both at home and abroad,this study classifies the main types of currently used additives into four categories:alkaline substances,carbon-based materials,trace elements,and biological additives.Each category is reviewed in detail,and future research directions in this field are discussed,with the aim of providing theoretical guid-ance for the efficient and stable operation of biogas production from organic waste.