一株贝氏不动杆菌的脱氮特性及废水处理研究
颜家静 , 廖钰婷 , 桂元 , 刘根侨 , 李仲玄 , 王川
现代化工 ›› 2026, Vol. 46 ›› Issue (S1) : 131 -138.
一株贝氏不动杆菌的脱氮特性及废水处理研究
Study on denitrification characteristics and wastewater treatment of a strain of Acinetobacter baylyi
从活性污泥中筛选出一株具备高效异养硝化-好氧反硝化能力的菌株,并深入研究其脱氮性能及实际应用潜力。最终筛选出一株高效异养硝化-好氧反硝化菌株NM3,鉴定为贝氏不动杆菌(Acinetobacter baylyi)。该菌株优先利用氨氮,降解过程无硝态氮累积。在丁二酸钠为碳源、C/N质量比=14、32℃、pH=7.82最优条件下,氨氮去除率达97.37%,对猪场、水产养殖废水氨氮去除率分别为77.14%、86.67%,具备良好废水处理应用潜力。
A strain with high-efficiency heterotrophic nitrification-aerobic denitrification capacity was isolated from activated sludge,and its nitrogen removal performance and practical application potential were investigated in depth.Eventually,a high-efficiency heterotrophic nitrification-aerobic denitrification strain,designated as NM3,was screened out and identified as Acinetobacter baylyi.This strain preferentially utilizes ammonia nitrogen,with no accumulation of nitrate nitrogen during the degradation process.Under the optimal conditions of sodium succinate as the carbon source,C/N ratio of 14,temperature of 32℃ and pH of 7.82,the ammonia nitrogen removal rate reached 97.37%.Moreover,it achieved ammonia nitrogen removal rates of 77.14% and 86.67% for piggery wastewater and aquaculture wastewater respectively demonstrating favorable application potential in wastewater treatment.
贝氏不动杆菌 / 异养硝化 / 脱氮特性 / 氨氮去除 / 废水处理
Acinetobacter baylyi / heterotrophic nitrification / denitrification characteristics / ammonia nitrogen removal / wastewater treatment
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