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1)  denitrifying phosphorus accumulation organism (DPAO)
反硝化聚磷菌(DPAO)
2)  denitrifying phosphorus accumulating bacteria
反硝化聚磷菌
1.
Screening and enrichment of denitrifying phosphorus accumulating bacteria using nitrite as electronic acceptor;
利用亚硝酸盐为电子受体反硝化聚磷菌的筛选与富集
3)  denitrifying phosphate-accumulating organisms(DNPAOs)
反硝化聚磷菌
1.
To study the biological characteristics of denitrifying phosphate-accumulating organisms(DNPAOs),four effective DNPAOs were identified in an anaerobic/anoxic SBR reactor with steady operation.
为研究反硝化聚磷菌的生物学特性,通过吸磷试验、硝酸盐还原产气试验及异染颗粒和PHB颗粒染色辅助检验,从稳定运行的厌氧/缺氧SBR反应器中分离筛选出4株高效反硝化聚磷菌H16、H19、H24和Xg。
4)  denitrifying phosphorus removing bacteria(DPB)
反硝化聚磷菌
1.
The enrichment and cultivation of denitrifying phosphorus removing bacteria(DPB) by two methods,two-phase cultivation and three-phase cultivation,was investigated in a laboratory-scale Sequencing Batch Reactor(SBR).
对反硝化聚磷菌的两阶段法和三阶段法两种驯化方法做了对比研究。
2.
The enrichment and cultivation of denitrifying phosphorus removing bacteria(DPB) using activated sludge from a full scale wastewater treatment plant were studied in a set of sequencing batch reactor(SBR) system.
以污水处理厂二沉池的活性污泥为种泥,采用SBR反应器初步完成了反硝化聚磷菌(DPB)的培养与驯化。
3.
Using domestic sewage,the cultivation of denitrifying phosphorus removing bacteria(DPB) and start-up of A_2N two-sludge system were investigated in a laboratory.
以实际生活污水为对象,研究了反硝化聚磷菌(DPB)的驯化培养以及A2N双污泥反硝化除磷系统的快速启动。
5)  denitrifying phosphate accumulating organisms
反硝化聚磷菌
1.
Enrichment of Denitrifying Phosphate Accumulating Organisms in Sequencing Batch Membrane Bioreactors;
序批式膜生物反应器中反硝化聚磷菌的富集
6)  denitrifying phosphorus removing bacteria
反硝化聚磷菌
1.
The relationship between NO4+-N consumption and PO43--P removal was linear,which indicated that enrichment and cultivation of denitrifying phosphorus removing bacteria in a set of SBR was feasible.
以某污水处理厂活性污泥作为种泥、生活污水作为原水,采用间歇反应器进行反硝化聚磷菌的培养驯化研究。
2.
The denitrifying phosphorus removing bacteria were introduced as well.
综述了膜生物反应器强化脱氮除磷的多种工艺,介绍了复合式膜生物反应器强化脱氮除磷以及反硝化聚磷菌脱氮除磷的研究成果,并在此基础上提出了研究方向和应用前景。
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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