西北工程技术学报2025，Vol.24Issue(4)：334-339,6.DOI:10.26974/j.cnki.XBGC.2025.04.007
用鸟粪石结晶法处理高氨氮厌氧消化液
Treatment of High-Ammonia Anaerobic Digestate via Struvite Crystallization
摘要
Abstract
To facilitate the resource recovery of ammonia nitrogen,struvite crystallization was employed to treat anaerobic digestate derived from livestock manure.Building on preliminary tests,an orthogonal experimental design was utilized to optimize the operational parameters.The results showed that the optimal reaction conditions were a pH of 10.0,a molar ratio of Mg²⁺ to NH₄⁺ of 1.10,and a reaction time of 20 minutes,achieving a maximum ammonia-nitrogen removal efficiency of 92.7%.Characterization of the resulting precipitate using X-ray diffraction(XRD)and scanning electron microscopy(SEM)confirmed that struvite crystals were the predominant component.关键词
厌氧消化液/鸟粪石/沉淀剂配比/pH值/反应时间Key words
anaerobic digestate/struvite/precipitant ratio/pH value/reaction time分类
资源环境引用本文复制引用
韩晓利,祁若曈,郑兰香..用鸟粪石结晶法处理高氨氮厌氧消化液[J].西北工程技术学报,2025,24(4):334-339,6.基金项目
宁夏自然科学基金项目(2023AAC03113) （2023AAC03113）
宁夏大学大学生科技创新项目(202210749452) （202210749452）
