畜禽废弃物堆肥氨气与温室气体协同减排研究

Synergistic mitigation of ammonia and greenhouse gas emissions during livestock waste composting

畜禽废弃物堆肥过程氨气与温室气体排放机理及减排技术是国内外学者的研究热点。堆肥过程中碳氮转化与氨气和温室气体的排放是相互关联的,而目前的研究主要关注氨气减排,尚缺乏对氨气与温室气体协同减排的系统性研究。因此,本研究通过系统梳理已发表的文献,分析了畜禽废弃物堆肥过程中氨气和温室气体的产排机制和协同关系,阐述了影响因素、调控策略和减排潜力,探讨了氨气和温室气体协同减排的技术途径,展望了氨气和温室气体协同减排机理与策略研究的重点和方向,旨在为畜禽废弃物堆肥过程中氨气和温室气体的协同减排提供理论依据和技术途径。研究表明,畜禽废弃物堆肥过程中氨气和温室气体的协同减排机理和调控途径尚不清楚,应加强在调节物料性质和优化供气策略的基础上,通过使用物理、化学和生物添加剂以实现堆肥过程氨气和温室气体的协同减排机理和技术研究。

Research on the mechanisms and mitigation technologies of ammonia and greenhouse gas emissions during livestock waste com posting are hot topics for domestic and foreign scholars in the past 30 years.The conversion of carbon and nitrogen and emissions of ammo nia and greenhouse gas during the composting process are interrelated.Previous studies mainly focus on ammonia volatilization,however,a systematic research on the synergistic mitigation of ammonia and greenhouse gas emissions is lack.Here,this paper conducted a systematic analysis on the published papers,to analyze the emission mechanism and synergetic relationship of ammonia and greenhouse gas emissions during livestock waste composting;to elaborate the influencing factor,regulation pathway and mitigation potential of mitigation technology;to explore the technical pathway of synergistic mitigation of gas emissions;to provide the outlook for synergistic mitigation mechanism and mitigation strategy.To date,synergistic mitigation mechanism and regulation pathway of ammonia and greenhouse gas during livestock waste composting are unclear.In the future,chemical additives,physical additives and microbial additives should be applied on the basis of adjusting material properties and optimizing gas supply strategies.