Elucidation of the nitrogen-transformation mechanism for nitrite removal using a microbial-mediated iron redox cycling system
Elucidation of the nitrogen-transformation mechanism for nitrite removal using a microbial-mediated iron redox cycling system
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使用微生物介导的铁氧化还原循环系统阐明去除亚硝酸盐的氮转化机制
DOI：
10.1016/j.jwpe.2019.101016
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发表时间：
2020-02
影响因子：
7
通讯作者：
Feng Fang
中科院分区：
文献类型：
--
作者：
Yongsheng Lu;Xueer Huang;Lu Xu;Xueping Chen;Jizhi Zhou;Guangren Qian;Feng Fang
Given the abundance of iron on the Earth, nitrogen-contaminated water is a key region for the biogeochemical cycling of N and Fe under anaerobic conditions. However, the biogeochemical processes between N and Fe remain uncertain, as do the understanding of nitrogen-transformation pathways. In this study, the nitrogen balance for the nitrite removal process in the system containingShewanella oneidensisMR-1 and the iron oxide of either ferrihydrite or magnetite was elucidated by microbially mediated biotic and abiotic reactions with the participation of Fe. Gas chromatography results showed that during the subsequent operation phase with the re-addition of nitrite, nitrite reduction by biogenic Fe(II) was the sole process to produce gaseous nitrogen (N2O), and yields of which were achieved to 65.56 % and 23.13 % with the ferrihydrite and magnetite systems, respectively. Meanwhile, both ferrihydrite and magnetite remained relatively stable with a small amount of phosphosiderite. Accompanied with biogenic Fe(II) formation in the start-up phase, reduction of nitrite to ammonia coupled with lactate oxidation could be driven byShewanella oneidensisMR-1. Thus, in order to remediate nitrogen pollution in aquatic environment, given the intimate association between the microbial-mediated Fe mineralization process and the biogeochemical cycling of N, it is essential to truly understand the nitrogen-transformation mechanism under the coexistence of both processes.
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影响因子：
5.8
作者：
Y. Ebert;R. Shaar;S. Emmanuel;N. Nowaczyk;M. Stein
通讯作者：
Y. Ebert;R. Shaar;S. Emmanuel;N. Nowaczyk;M. Stein
影响因子：
5
作者：
Grabb, Kalina C.;Buchwald, Carolyn;Wankel, Scott D.
通讯作者：
Wankel, Scott D.
DOI：
10.1038/ismej.2014.201
发表时间：
2014-10
期刊：
The ISME Journal
影响因子：
--
作者：
Sukhwan Yoon;C. Cruz-García;R. Sanford;K. Ritalahti;F. Löffler
通讯作者：
Sukhwan Yoon;C. Cruz-García;R. Sanford;K. Ritalahti;F. Löffler
通过绿铁矿结晶从水溶液中回收磷酸盐：热力学和 pH 值的影响
影响因子：
15.1
作者：
Liu, Jiaqi;Cheng, Xiang;Qu, Dan
通讯作者：
Qu, Dan
影响因子：
18.3
作者：
V. Samarkin;M. Madigan;M. Bowles;K. Casciotti;J. Priscu;C. Mckay;S. Joye
通讯作者：
V. Samarkin;M. Madigan;M. Bowles;K. Casciotti;J. Priscu;C. Mckay;S. Joye