鸡粪厌氧消化氨氮抑制现象及解抑技术研究进展OA

Anaerobic digestion for biogas production is an important technical approach for the resource utilization of agricultural waste.However,during the anaerobic digestion of chicken manure,due to its high nitrogen content,it is prone to cause the accumulation of ammonia nitrogen,leading to an increase in the ammonia nitrogen concentration in the system,thereby inhibiting the activity of anaerobic microorganisms,reducing the stability and treatment efficiency of the system,and becoming a key bottleneck restricting the efficiency of anaerobic digestion of chicken manure.To provide references for the efficient and stable operation of anaerobic digestion projects of chicken manure,the current research status on the sources and hazards of ammonia nitrogen in chicken manure,the formation mechanism and influencing factors of ammonia nitrogen inhibition during the anaerobic digestion of chicken manure,as well as the mitigation strategies were reviewed.Moreover,it looks forward to the research directions from the development of advanced mitigation processes for ammonia nitrogen inhibition in chicken manure anaerobic digestion,the verification of engineering application practices,and the comparison of regulation technologies of ammonia nitrogen across different animal manure systems.