在探究厌氧消化过程中氨氮回收可行性的基础上，总结了几种国内外常见的氨氮回收方式，并结合实例分析比较不同方式之间的联系和每种方式的局限性，归纳了不同氨氮回收设备之间的联系并提出改进意见；在氨氮回收的基础上研究游离氨的单独作用和游离氨与其他方式联合作用作为污水厂二级污泥和农作物预处理的应用。

Based on exploring the feasibility of ammoniacal nitrogen recovery during anaerobic digestion,several common methods for recovering ammoniacal nitrogen worldwide are summarized,and examples are used to compare the relationship between different methods and the limitations of each method.The connections between different recovery equipment are summarized and the relating improvement suggestions are given.Based on the recovery of ammoniacal nitrogen,the effects of free ammonia alone,and the combined effect of free ammonia and other state ammonia are studied for applications in pre-treatment of secondary sludge from sewage plants and crops.

程寒(1997-),男,硕士生