硝化是指有机化合物分子中引入硝基的反应。硝基可以与有机化合物中的碳原子相连，形成硝基化合物；也可以与氧原子相连，形成硝基酯类化合物；还可以与氮原子相连，形成硝胺等。
v. nitrating
n. nitration ; nitrification
vt. nitrify
There was low nitrogen removal rate （18.8%） by endogenous respiration without carbon sources added.
当不投加外部碳源时（内碳源）,通过内源呼吸代谢作用进行反硝化效果最差,脱氮率仅有18.8%。
参考来源 - 反硝化脱氮及其微生物特性研究The denitrifying phosphorus removal proformance and processes were studied through static experiments at 10±1℃.
通过静态试验研究了10±1℃时好氧颗粒污泥反硝化除磷性能与过程。
参考来源 - 低温条件下好氧颗粒污泥同步脱氮除磷效能及其过程研究·2,447,543篇论文数据，部分数据来源于NoteExpress
研究了三种土壤反硝化细菌的生态分布。
The ecological distribution of denitrifying bacteria in the three soils was studied.
研究了水稻、大麦根际和根际反硝化细菌的生态分布。
The ecological distribution of denitrifying bacteria on rhizoplane and in rhizosphere of rice and barley was studied.
基于菌膜厌氧好氧工艺法流程试验，对附着微生物简短硝化的可行性进行了研究。
Based on the experiment of biofilm A/O process, the feasibility of brief-nitrification in attached microorganism system is studied.
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