好氧反硝化
嗜盐菌
反硝化
硝化作用
异养
盐度
废水
化学
曝气
细菌
环境化学
氮气
微生物学
食品科学
环境工程
生物
反硝化细菌
生态学
环境科学
有机化学
遗传学
作者
Jinming Duan,Hongda Fang,Bing‐Jian Su,Jinfang Chen,Jinmei Lin
标识
DOI:10.1016/j.biortech.2014.12.057
摘要
A novel halophilic bacterium capable of heterotrophic nitrification–aerobic denitrification was isolated from marine sediments and identified as Vibrio diabolicus SF16. It had ability to remove 91.82% of NH4+-N (119.77 mg/L) and 99.71% of NO3−-N (136.43 mg/L). The nitrogen balance showed that 35.83% of initial NH4+-N (119.77 mg/L) was changed to intracellular nitrogen, and 53.98% of the initial NH4+-N was converted to gaseous denitrification products. The existence of napA gene further proved the aerobic denitrification ability of strain SF16. The optimum culture conditions were salinity 1–5%, sodium acetate as carbon source, C/N 10, and pH 7.5–9.5. When an aerated biological filter system inoculated with strain SF16 was employed to treat saline wastewater, the average removal efficiency of NH4+-N and TN reached 97.14% and 73.92%, respectively, indicating great potential of strain SF16 for future full-scale applications.
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