Growth and characteristics of nitrogen and phosphorus removal of a denitrifying phosphate accumulating bacteria

WANG Qiang; WANG Jihua; ZHANG Xiaoqi; IANG Xinxin; DU Cong; MA Fang

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Growth and characteristics of nitrogen and phosphorus removal of a denitrifying phosphate accumulating bacteria

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- Growth and characteristics of nitrogen and phosphorus removal of a denitrifying phosphate accumulating bacteria
- CIESC Journal Issue 6, Pages: 1540-1544(2010)
- 作者机构：
  
  1. 哈尔滨工业大学城市水资源与水环境国家重点实验室
  2. 
- 作者简介：
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- Online First：05 June 2010，
  
  Published：05 June 2010
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WANG Qiang, WANG Jihua, ZHANG Xiaoqi, et al. Growth and characteristics of nitrogen and phosphorus removal of a denitrifying phosphate accumulating bacteria[J]. CIESC Journal, 2010, (6): 1540-1544.
DOI：

WANG Qiang, WANG Jihua, ZHANG Xiaoqi, et al. Growth and characteristics of nitrogen and phosphorus removal of a denitrifying phosphate accumulating bacteria[J]. CIESC Journal, 2010, (6): 1540-1544. DOI：

摘要

为进一步探讨反硝化除磷机理，试验采用前期分离一株典型的反硝化聚磷菌，研究其生长及除磷脱氮特性。利用纯菌和反应器静态模拟试验考察了不同电子受体对脱氮除磷效率的影响。该反硝化聚磷菌的生长曲线比较典型，其潜伏期不足1h，对数生长期约为14h，菌株除磷过程中吸磷与硝氮去除呈良好的线性关系，对硝氮和亚硝氮两种电子受体都能利用，该菌株相对亚硝酸盐敏感性低，不同的电子受体并未对菌株除磷效果有明显的影响，吸磷率都达到60%以上。反应器静态模拟实验验证了在反应器内存在的主要优势DPB菌对两种不同电子受体都能利用，与菌株实验结果一致。

Abstract

In order to further explore the mechanism of denitrifying phosphorus removal

the growth characteristics and denitrifying phosphorus removal characteristics of a typical denitrifying phosphate accumulating bacteria(DPB) which was isolated by previous experiment were studied.The effect of different electron acceptors on the efficiency of nitrogen and phosphorus removal was investigated by pure bacteria and reactor statics simulation tests.The growth curve of the DPB was typical

and its incubation period was less than 1 h and the logarithmic phase about 14 h.The result showed that the stain could utilize both nitrite and nitrate as different electron acceptors to take up phosphorus.And there was a good linear correlation between P removal and NO-3-N removal during phosphorus removal process.The sensitivity to nitrite of the strain was low.The effect of electron acceptors on phosphorus removal was not significant.The efficiency of removal for phosphorus and the nitrate was both above 60%

and that for nitrite was 100%.

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