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Characterization of Bacillus subtilis Ab03 for efficient ammonia nitrogen removal 被引量:3
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作者 Qiang Wang Weilai Fu +4 位作者 Ruiqi Lu chunli pan Ganfeng Yi Xian Zhang Zhiming Rao 《Systems Microbiology and Biomanufacturing》 2022年第3期580-588,共9页
An efficient ammonia nitrogen degrading bacterial strain was isolated from a fish and shrimp pond and identified as Bacillus subtilis(Ab03).Firstly,the strain was continuously domesticated in ammonium solution to impr... An efficient ammonia nitrogen degrading bacterial strain was isolated from a fish and shrimp pond and identified as Bacillus subtilis(Ab03).Firstly,the strain was continuously domesticated in ammonium solution to improve its nitrogen removal capacity.The performance of the strain in terms of nitrogen removal efficiency under different culture conditions was then examined.Finally,the nitrogen removal process and related strain mechanisms were analyzed by nitrogen balance.The results showed the strain Ab03 could remove 91.67% of NH_(4)^(+)-N at 300 mg/L under the conditions of glucose as the single carbon source,C/N of 15,pH of 7.5,the temperature of 35℃ and dissolved oxygen of 7-8 mg/L.It was also found that under conditions where ammonia nitrogen was the only nitrogen source,strain Ab03 could also undergo aerobic denitrification for simultaneous conversion,with a final gas conversion rate of 74.81%. 展开更多
关键词 Bacillus subtilis Ammonia nitrogen Nitrogen balance Simultaneous conversion
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