Anoxic biological phosphorus removal and effect of excessive aeration on biological phosphorus removal in A<sup>2</sup>O process

WANG Xiaolian; WANG Shuying; MA Yong; PENG Yongzhen

您当前的位置：

首页 >

文章列表页 >

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

更新时间：2025-12-10

- Anoxic biological phosphorus removal and effect of excessive aeration on biological phosphorus removal in A²O process
- CIESC Journal Issue 8, Pages: 1565-1570(2005)
- 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：
- 基金信息：
- DOI：
  CLC：
- Online First：25 August 2005，
  
  Published：25 August 2005
- 稿件说明：
移动端阅览
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：

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.

关键词

Keywords

references

Views

1391

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Biological nutrient removal in A2O process when treating low C/N ratio domestic wastewater

Removal of organic substrates, phosphorus and nitrogen by two-sludge and induced crystallization process

Effect of additional carbon sources on nitrogen and phosphorus removal characteristics in A2/O-BCO process

Effect of nitrification duration distribution ratio in N-SBR unit on performance of A2N2 system operation

Startup and stability of A2N2 double sludge system denitrifying phosphorus removal process

Related Author

PENG Yi

PENG Yongzhen

WU Changyong

WU Yifeng

Lü Xiwu

SHI Jing

WANG Shuying

PENG Yongzhen

Related Institution

北京工业大学北京市水质科学与水环境恢复工程重点实验室

哈尔滨工业大学城市水资源与水环境国家重点实验室

东南大学能源与环境学院

National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology

⁰

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

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