Biotechnology Bulletin ›› 2022, Vol. 38 ›› Issue (7): 247-257.doi: 10.13560/j.cnki.biotech.bull.1985.2021-1111
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GAO Yu-xuan1(), JIN Jing-chen2, XU Li-shan1, GAO Ya-Juan1, ZHANG Wen-tian1, LI Chen-chen1, ZHANG Guo-wei1, JIN Yong-sheng1,3()
Received:
2021-08-30
Online:
2022-07-26
Published:
2022-08-09
Contact:
JIN Yong-sheng
E-mail:1031836790@qq.com;jin6405@126.com
GAO Yu-xuan, JIN Jing-chen, XU Li-shan, GAO Ya-Juan, ZHANG Wen-tian, LI Chen-chen, ZHANG Guo-wei, JIN Yong-sheng. Isolation of Halophilic Heterotrophic Nitrification-aerobic Denitrification Bacterium Bacillus megatherium N07 and Its Denitrification Characteristics[J]. Biotechnology Bulletin, 2022, 38(7): 247-257.
编号No. | 氨氮Ammonia nitrogen | 总氮Total nitrogen | ||||
---|---|---|---|---|---|---|
去除率 Removal rate/% | 降解速率 Degradation rate/(mg·(L·h)-1) | 去除率 Removal rate/% | 降解速率 Degradation rate/(mg·(L·h)-1) | |||
N01 | 55.53 | 4.63 | 33.78 | 2.81 | ||
N04 | 50.21 | 4.16 | 24.77 | 2.06 | ||
N07 | 70.95 | 5.91 | 63.84 | 5.33 |
Table 1 Comparison of nitrogen removal performance of three denitrification strains
编号No. | 氨氮Ammonia nitrogen | 总氮Total nitrogen | ||||
---|---|---|---|---|---|---|
去除率 Removal rate/% | 降解速率 Degradation rate/(mg·(L·h)-1) | 去除率 Removal rate/% | 降解速率 Degradation rate/(mg·(L·h)-1) | |||
N01 | 55.53 | 4.63 | 33.78 | 2.81 | ||
N04 | 50.21 | 4.16 | 24.77 | 2.06 | ||
N07 | 70.95 | 5.91 | 63.84 | 5.33 |
Fig.3 Growth of strain N07 under different salinities A:Ammonia nitrogen was the only nitrogen source in the medium. B:Nitrite nitrogen was the only nitrogen source in the medium. The error line in the figure represents the standard deviation,different letters indicated significant difference,P <0.05(n=3). The same below
Fig. 4 Nitrogen removal effect of strain N07 at different salinities A:Ammonia nitrogen was the only nitrogen source in the medium. B:Nitrite nitrogen was the only nitrogen source in the medium
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