Effect of HRT and aeration rate on performance of AAO-BAF system for denitrifying phosphorus removal

ZHANG Weitang; HOU Feng; LIU Qingsong; SHAO Yanqing; XUE Xiaofei; PENG Yongzhen

doi:10.3969/j.issn.0438-1157.2014.04.039

您当前的位置：

首页 >

文章列表页 >

Effect of HRT and aeration rate on performance of AAO-BAF system for denitrifying phosphorus removal

更新时间：2025-12-10

- Effect of HRT and aeration rate on performance of AAO-BAF system for denitrifying phosphorus removal
- CIESC Journal Issue 4, Pages: 1436-1442(2014)
- 作者机构：
  
  1. 北京工业大学北京市水质科学与水环境恢复重点实验室,北京,100124
  2. 北京北华清创环境科技有限公司,北京,100124
  3. 北控水务（中国）投资有限公司,北京,100124
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.04.039
  CLC： 703.1
- Online First：21 October 2013，
  
  Published：21 October 2013
- 稿件说明：
移动端阅览
ZHANG Weitang, HOU Feng, LIU Qingsong, et al. Effect of HRT and aeration rate on performance of AAO-BAF system for denitrifying phosphorus removal[J]. CIESC Journal, 2014, (4): 1436-1442.
DOI：

ZHANG Weitang, HOU Feng, LIU Qingsong, et al. Effect of HRT and aeration rate on performance of AAO-BAF system for denitrifying phosphorus removal[J]. CIESC Journal, 2014, (4): 1436-1442. DOI： 10.3969/j.issn.0438-1157.2014.04.039.

摘要

以COD/TN为4左右的生活污水为处理对象，通过调节系统进水流量和曝气生物滤池（BAF）曝气量，研究了水力停留时间（HRT）和BAF气水比对AAO-BAF反硝化除磷系统运行性能的影响。结果表明，气水比和水力负荷（HLR）对BAF的硝化性能有显著影响，BAF气水比为3：1时，NH4+去除率降低到了72%；当AAO的HRT为4 h，BAF的HLR为3 m3·m-2·h-1时，即使BAF的气水比达到8：1，也不能保证NH4+的完全去除。试验得出，AAO-BAF反硝化除磷系统的PO43-去除率与NH4+去除率存在良好的相关关系，为保证90%以上的磷去除率，NH4+去除率应该达到98%。当AAO的HRT≥6 h，BAF气水比≥4：1时，AAO-BAF系统对COD、NH4+、TN和PO43-的去除率分别可达87%、99%、80%和95%。

Abstract

Integrated anaerobic/anoxic/oxic process with biological aerated filter

AAO-BAF system was used to treat domestic wastewater with low C/N ratio of about 4. By adjusting influent flow rate of the AAO reactor and aeration rate of BAF

the effect of hydraulic retention time (HRT) and aeration rate on the performance of the AAO-BAF system was investigated. The results showed that air/liquid ratio and hydraulic load rate (HLR) of BAF had great influence on NH4+ removal. At air/liquid ratio 3:1

NH4+ removal rate decreased to 72%. Further

when HRT = 4 h and HLR of BAF was 3 m3·m-2·h-1

NH4+ could not be removed completely even with a high air/liquid ratio of 8:1. This work confirmed that there was an obvious relationship between PO43- and NH4+ removal efficiencies in the AAO-BAF system. The NH4+ removal should reach 98% for over 90% of the PO43- removal. When HRT of the AAO reactor was greater than 6 h

and air/liquid ratio of BAF was greater than 4:1

the average removal efficiencies of COD

NH4+

TN and PO43- could reach 87%

99%

80% and 95% respectively.

关键词

Keywords

references

Views

341

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Catalytic nitrophenol degradation via peroxymonosulfate activation over Cu/Co doped porous carbon

Start-up of CANON process on domestic wastewater using intermittent aeration with low DO

A simple method for evaluating biodegradability of pre-ozonized water

Performance of denitrifying-phosphorus-removal system (AAO-BAF) during secondary start-up

Hydrolysis reaction mechanism of CNCl on the surface of composite metal CuCr2O4

Related Author

YAN Xinlong

HUANG Zhigang

HU Qingxun

ZHANG Xin

HU Xiaoyan

ZHANG Qian

WANG Shuying

MIAO Yuanyuan

Related Institution

Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, China University of Mining and Technology

Lanzhou Petrochemical Research Center, PetroChina

National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology

College of Chemical Engineering and Materials Science, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology

Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology

⁰