井冈山大学学报（自然科学版）Issue(4)：1-6,6.DOI:10.3969/j.issn.1674-8085.2014.04.001
好氧反硝化菌的筛选鉴定及其脱氮特性研究
SCREENING, IDENTIFICATION AND DENITRIFICATION CHARACTERISTICS OF AEROBIC DENITRIFIERS
摘要
Abstract
Three aerobic denitrifiers(S1, S2 and S3)were abtained by isolating and screening. Strain S1 was identified as Raoultella terrigena, while strains S2 and S3 were identified as Raoultella ornithinolytica. It is first reported that the three bacteria are aerobic denitrifiers. Studies on their aerobic denitrification characteristics showed that significant changes of nitrogen level in culture media occurred in the logarithmic growth phase of strains; in the studies on using nitrate or nitrite as sole nitrogen source, respectively, the removal rates of NO3--N and NO2--N were 26%and 67%at 24 h, respectively, which proved that nitrite was used more easily for aerobic denitrification of three strains;Results also showed that S3 was optimal strain with the highest removal efficiency of nitrogen, which had better denitrification effects on eutrophic water with low concentration nitrogen, and S3 had the highest denitrification rate of 0.62 mg·L-1·h-1 and denitrification contribution rate of TN up to 52.5%at 4 h.关键词
好氧反硝化菌/筛选鉴定/富营养化/脱氮特性Key words
aerobic denitrifier/screening and identification/eutrophication/denitrification characteristic分类
资源环境引用本文复制引用
张宇燕,贺根和,陆丽君,刘佳,黄翔峰,梁亮亮..好氧反硝化菌的筛选鉴定及其脱氮特性研究[J].井冈山大学学报（自然科学版）,2014,(4):1-6,6.基金项目
国家科技支撑计划项目(2012BAC11B04) （2012BAC11B04）
