天津农业科学2025，Vol.31Issue(3)：79-85,7.DOI:10.3969/j.issn.1006-6500.2025.03.012
氨氮高效降解蜡样芽孢杆菌的筛选与污水中氨氮降解效果试验评估
Screening of Bacillus cereus for Efficient Degradation of Ammonia Nitrogen and Experimental Evaluation of Ammonia Nitrogen Degradation Effect in Sewage
摘要
Abstract
To obtain high-efficiency ammonia nitrogen-degrading microbial strains,researchers remediated ammonia nitrogen wastew-ater using biological methods.Through 16S rDNA analysis,12 strains were identified as Bacillus cereus and selected as experimental strains.The ammonia nitrogen content in the supernatant was detected by standard Nessler's reagent spectrophotometry,and the degradation rate was calculated.Subsequent sewage degradation tests demonstrated that strain Bacillus cereus N435-1 exhibited out-standing performance.Under culture conditions with an initial ammonia nitrogen concentration of 100 mg·L-1,the degradation rate reached over 90%after 96 h and 99.91%after 144 h.This strain N435-1 showed effective degradation on four types of sewage,ulti-mately reducing ammonia nitrogen concentration to 2.62 mg·L-1 In conclusion.Laboratory culture conditions and sewage treatment ex-hibit comparable effects,confirming that strain N435-1 can efficiently degrade ammonia nitrogen with high reproducibility and rapid concentration reduction,demonstrating significant application potential.关键词
高效/氨氮降解/蜡样芽孢杆菌/筛选/氨氮污水Key words
high efficiency/ammonia nitrogen degradation/Bacillus cereus/screening/ammonia nitrogen sewage分类
生物学引用本文复制引用
刘荣徽,张琳,郭圣辉,赵瑞利,王承民,徐莉莉..氨氮高效降解蜡样芽孢杆菌的筛选与污水中氨氮降解效果试验评估[J].天津农业科学,2025,31(3):79-85,7.基金项目
优宜邦生物科技(上海)有限公司产业化项目,微生物资源与产业化利用(UYB20220001-01、UYB20230001-02) （上海）
