N2O profiles in the enhanced CANON process via long-term N2H4 addition: minimized N2O production and the influence of exogenous N2H4 on N2O sources
N2O profiles in the enhanced CANON process via long-term N2H4 addition: minimized N2O production and the influence of exogenous N2H4 on N2O sources
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通过长期添加 N2H4 增强 CANON 工艺中的 N2O 曲线：最大限度地减少 N2O 产生以及外源 N2H4 对 N2O 来源的影响
DOI：
10.1007/s11356-019-06508-w
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发表时间：
2019-11
影响因子：
5.8
通讯作者：
Tiantao Zhao
中科院分区：
文献类型：
--
作者：
Pengying Xiao;Shuo Ai;Jing Zhou;Xiaojing Luo;Baowen Kang;Li Feng;Tiantao Zhao
Production of the greenhouse gas nitrous oxide (N2O) from the completely autotrophic nitrogen removal over nitrite (CANON).process is of growing concern. In this study, the effect of added hydrazine (N2H4) onN2O production during the CANON process.was investigated. Long-term trace N2H4 addition minimized N2O production (0.018%± 0.013% per unit total nitrogen removed).and maintaining high nitrogen removal capacity of CANON process (nitrogen removal rate and TN removal efficiency was 450 ±.60 mg N/L/day and 71 ± 8%, respectively). Ammonium oxidizing bacteria (AOB) was the main N2O producer. AOB activity.inhibition by N2H4 decreased N2O production during aeration, and the N2H4 concentration was negatively correlated with N2O.production rate in NH4.+ oxidation via AOB, whereas N2O production was facilitated under anaerobic conditions because.hydroxylamine (NH2OH) production was accelerated due to anammox bacteria (AnAOB) activity strengthen via N2H4..Added N2H4 completely degraded in the initial aeration phases of the CANON SBR, during which some N2H4 intensified.anammox for total nitrogen removal to eliminate N2O production from nitrifier denitrification (ND) by anammox-associated,.while the remaining N2H4 competed with NH2OH for hydroxylamine oxidoreductase (HAO) in AOB to inhibit intermediates.formation that result in N2O production via NH2OH oxidation (HO) pathway, consequently decreasing total N2O production.
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影响因子：
12.8
作者：
Ali, Muhammad;Rathnayake, Rathnayake M. L. D.;Okabe, Satoshi
通讯作者：
Okabe, Satoshi
影响因子：
5.2
作者：
Schreiber F;Wunderlin P;Udert KM;Wells GF
通讯作者：
Wells GF
DOI：
10.2175/193864711802639255
发表时间：
2011
期刊：
--
影响因子：
--
作者：
N. Weissenbacher;H. Clippeleir;P. Boeckx;M. Hell;K. Chandran;S. Murthy;B. Wett
通讯作者：
N. Weissenbacher;H. Clippeleir;P. Boeckx;M. Hell;K. Chandran;S. Murthy;B. Wett
影响因子：
12.8
作者：
R. M. Rathnayake;Yanjun Song;A. Tumendelger;M. Oshiki;Satoshi Ishii;H. Satoh;S. Toyoda;N. Yoshida;S. Okabe
通讯作者：
R. M. Rathnayake;Yanjun Song;A. Tumendelger;M. Oshiki;Satoshi Ishii;H. Satoh;S. Toyoda;N. Yoshida;S. Okabe
影响因子：
11.4
作者：
Pascal Wunderlin;H. Siegrist;A. Joss
通讯作者：
Pascal Wunderlin;H. Siegrist;A. Joss