A<sup>2</sup>O工艺中反硝化除磷及过量曝气对生物除磷的影响

王晓莲; 王淑莹; 马勇; 彭永臻

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A²O工艺中反硝化除磷及过量曝气对生物除磷的影响

能源和环境工程 | 更新时间：2025-12-10

- A²O工艺中反硝化除磷及过量曝气对生物除磷的影响
- Anoxic biological phosphorus removal and effect of excessive aeration on biological phosphorus removal in A²O process
- 化工学报 2005年第8期页码：1565-1570
- 作者机构：
  
  1. 北京工业大学水环境恢复重点实验室,北京,100022
  2. 哈尔滨工业大学市政与环境工程学院,黑龙江,哈尔滨,150090
- 作者简介：
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- 网络首发：2005-08-25，
  
  纸质出版：2005-08-25
- 稿件说明：
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王晓莲, 王淑莹, 马勇, 等. A²O工艺中反硝化除磷及过量曝气对生物除磷的影响[J]. 化工学报, 2005,(8):1565-1570.

WANG Xiaolian, WANG Shuying, MA Yong, et al. Anoxic biological phosphorus removal and effect of excessive aeration on biological phosphorus removal in A²O process[J]. CIESC Journal, 2005, (8): 1565-1570.
王晓莲, 王淑莹, 马勇, 等. A²O工艺中反硝化除磷及过量曝气对生物除磷的影响[J]. 化工学报, 2005,(8):1565-1570. DOI：

WANG Xiaolian, WANG Shuying, MA Yong, et al. Anoxic biological phosphorus removal and effect of excessive aeration on biological phosphorus removal in A²O process[J]. CIESC Journal, 2005, (8): 1565-1570. DOI：

摘要

如何有效提高城市污水厂除磷效率一直是研究的热点，而反硝化除磷菌可以在碳源不足的条件下，通过“一碳两用”的方式同时实现反硝化脱氮和吸磷作用，是一种新型高效的技术.试验以啤酒废水为研究对象，验证了厌氧-缺氧-好氧（A2O）工艺中反硝化除磷现象的存在及其对系统脱氮除磷的影响.试验结果表明，A2O系统稳定运行时，反硝化聚磷菌在缺氧区可利用在厌氧段储存的PHB大量吸磷，同时氮也得到去除，计算表明缺氧除磷量可占厌氧总释磷量的71.3%，另外可节约曝气能耗25%.无论系统进水COD浓度从200 mg8226;L-1变化为400 mg8226;L-1，COD、总氮和总磷去除率总能保持较高水平，平均出水总氮和总磷浓度分别小于10 mg8226;L-1和0.30 mg8226;L-1.另外发现，过量曝气对系统除磷具有明显的影响，导致除磷效率降低，甚至会产生不吸磷现象，系统需要经过约一个污泥龄时间才能恢复其吸磷能力，所以应加强系统曝气的控制.

Abstract

A pilot-scale nutrient removal activated sludge system

based on the A2O configuration

was used to treat brewery wastewater.In the experiment

the existence of denitrifying phosphorus removing bacteria (DPB) and the contribution of DPB to phosphorus removal was observed.The tests showed the average total amount of anoxic P uptake accounted for 70% of the total amount of P uptake of the system at steady state

oxygen requirement could be decreased significantly(about 25%).Denitrifying phosphate removal resolved the competition for organic substrates between Poly-P organisms and denitrifiers under lower organic loading.Effluent total-P concentration could achieve less than 0.30 mg8226;L-1 and average effluent total-N was less than 10 mg8226;L-1.It is clearly demonstrated that the phosphorus uptake almost stopped in an over-aerated system

the released phosphorus could not be taken up fully again.Consequently

incomplete phosphorus uptake led to temporary reduction of biological phosphorous removal efficiency.It took about the time of one sludge age to eliminate that disturbance.

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A2O工艺中反硝化除磷及过量曝气对生物除磷的影响

Anoxic biological phosphorus removal and effect of excessive aeration on biological phosphorus removal in A2O process

DOI：

摘要

Abstract

关键词

Keywords

references

A²O工艺中反硝化除磷及过量曝气对生物除磷的影响

Anoxic biological phosphorus removal and effect of excessive aeration on biological phosphorus removal in A²O process