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1)  simultaneous denitrifying phosphorus removal
反硝化同时除磷
2)  simultaneous nitrification/denitrifying phosphorus removal(SNDPR)
同时硝化/反硝化除磷
1.
In order to achieve the simultaneous nitrification/denitrifying phosphorus removal(SNDPR) process,the good coexistence of denitrifying phosphorus accumulating organisms and nitrifying bacteria was realized by low-carbon synthetic wastewater and sludge acclimation in anaerobic-alternating aerobic/anoxic mode in SBR.
为实现同时硝化/反硝化除磷(SNDPR)过程,在SBR反应器内,采用模拟低碳源污水和厌氧—交替好氧/缺氧的运行方式对污泥进行培养驯化,成功实现了反硝化聚磷菌和硝化菌的良好共存。
3)  simultaneous denitrifying phosphorus-uptake
同时反硝化吸磷
1.
In this paper tests of the simultaneous denitrifying phosphorus-uptake in the spiral up-flow reactor system for biological nitrogen and phosphorus removal was conducted and analyzed.
本文对螺旋升流式反应器脱氮除磷系统中的反硝化吸磷现象进行了深入的研究,通过分析发现,适当的COD浓度和DO浓度有利于同时反硝化吸磷现象的发生。
4)  Denitrifying phosphorus removal
反硝化除磷
1.
Effect of internal return ratio on denitrifying phosphorus removal in A/A/O process;
混合液回流比对A/A/O工艺反硝化除磷的影响
2.
Control strategies of enhancing denitrifying phosphorus removal performance of the conventional Anaerobic-Anoxic-Oxic process;
强化A~2/O工艺反硝化除磷性能的运行控制策略
3.
Effect of the carbon source on denitrifying phosphorus removal;
碳源对反硝化除磷的影响
5)  denitrifying dephosphatation
反硝化除磷
1.
Effect of SRT on denitrifying dephosphatation;
泥龄对反硝化除磷效能的影响
2.
Effect of nitrate concentration on phosphorus removal in denitrifying dephosphatation system;
硝氮对反硝化除磷系统效率的影响
3.
Comparison between traditional biological nutrient removal process and denitrifying dephosphatation process;
传统生物除磷脱氮工艺和反硝化除磷工艺对比
6)  denitrification phosphorus removal
反硝化除磷
1.
Study on denitrification phosphorus removal in continuous-flow two-sludge system;
连续流双污泥系统反硝化除磷实验研究
2.
Study on Characteristic of Denitrification Phosphorus Removal by Submerged Membrane Sequencing Batch BioReactor;
淹没序批式膜生物反应器反硝化除磷特性研究
3.
In order to obtain the more suitable electron acceptor of denitrification phosphorus removal craft,in anaerobic /anoxic conditions,respective ly use NO3-and NO2-,two kinds ofelectron acceptors,to carry on the static contrast experimental study in sequencing batch Reactor activated sludge process(SBR),and inspect the different characteristics of denitrification phosphorus removal.
为探讨反硝化除磷工艺较适合的电子受体,采用序批式反应器(SBR),在厌氧/缺氧条件下,分别利用NO3-、NO2-两种电子受体进行反硝化除磷的静态对比试验研究,考察两者之间的不同脱氮除磷特性。
补充资料:反硝化作用
      硝酸盐在某些微生物的作用下还原为气态氮的过程。多发生于沼泽、湖泊和渍水土壤等缺氧环境中。其反应过程可简示为:2HNO3─→2HNO2─→2HNO─→N2。参与作用过程的微生物主要是反硝化细菌。作用的强度主要取决于土壤中的氧浓度和土壤pH。所有的反硝化细菌都是兼气性细菌,反硝化作用只有在土壤中的氧浓度较低时才能进行。当氧浓度减至5%以下时,反硝化作用明显增强。在过湿的环境中或在通气土壤的局部嫌气区(如根际),都能测得较明显的反硝化作用。反硝化作用的最适pH为7.0~8.2。当pH低至5.2~5.8或高达8.2~9.0时,反硝化作用的强度都会显著减弱。
  
  在自然界,除上述通常由反硝化细菌引起的反硝化作用外,还常由以下途径使介质中的硝酸盐还原为气态氮:①某些微生物通过对硫的氧化或某些含硫化合物,而使硝酸盐还原:2S+6KNO3+2CaCO3─→2K2SO4+2CaSO4+2CO2+3N2。 ②通过纯化学过程使硝酸盐还原为气态氮。但这一过程与真正的反硝化作用不同。
  
  由于反硝化作用导致土壤氮或施入土壤中的氮肥中氮的损失,因而对植物生长不利。农业生产上常需采取措施改善土壤通气状况和调节土壤酸度,防止和减缓反硝化作用的发生。
  

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