Domestication of a cold-adapted ammonia-oxidizing functional flora and its bioaugmentation on A<sup>2</sup>/O wastewater treatment process at low temperature

JIN Yu; LI Jianzheng; REN Nanqi; LIU Shuli

doi:10.3969/j.issn.0438-1157.2013.09.039

您当前的位置：

首页 >

文章列表页 >

Domestication of a cold-adapted ammonia-oxidizing functional flora and its bioaugmentation on A²/O wastewater treatment process at low temperature

更新时间：2025-12-10

- Domestication of a cold-adapted ammonia-oxidizing functional flora and its bioaugmentation on A²/O wastewater treatment process at low temperature
- CIESC Journal Issue 9, Pages: 3367-3372(2013)
- 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,黑龙江,哈尔滨,150090
  2. 东北农业大学资源与环境学院,黑龙江,哈尔滨,150030
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.09.039
  CLC： 703
- Online First：05 September 2013，
  
  Published：05 September 2013
- 稿件说明：
移动端阅览
JIN Yu, LI Jianzheng, REN Nanqi, et al. Domestication of a cold-adapted ammonia-oxidizing functional flora and its bioaugmentation on A²/O wastewater treatment process at low temperature[J]. CIESC Journal, 2013, (9): 3367-3372. DOI: 10.3969/j.issn.0438-1157.2013.09.039.
DOI：

JIN Yu, LI Jianzheng, REN Nanqi, et al. Domestication of a cold-adapted ammonia-oxidizing functional flora and its bioaugmentation on A²/O wastewater treatment process at low temperature[J]. CIESC Journal, 2013, (9): 3367-3372. DOI: 10.3969/j.issn.0438-1157.2013.09.039. DOI：

摘要

为提高北方地区冬季污水生物处理系统的脱氮效果

利用序批式反应器(SBR)和选择性培养基在(14±1)℃下驯化并富集耐冷氨氧化功能菌群

并采用软性填料进行固定

对(14±1)℃运行的A2/O系统好氧段进行生物强化。结果表明

连续运行5个周期后

SBR中的活性污泥逐渐演替为氨氧化功能菌群

在进水NH3-N为205～236 mg·L-1时

SBR的NH3-N去除率可达79.5%;将组合式纤维填料置于SBR中并继续运行5个周期

可将氨氧化功能菌群以生物膜的形式固定于填料表面。以固定化氨氧化功能菌群对A2/O系统进行生物强化

在投加量为3.24%(污泥干重)的条件下

A2/O系统的氨氮平均去除率由投加前的65%提高到78%

COD和总氮去除率也有明显提高。在生物强化后的持续运行中

A2/O系统的氨氮去除效能有缓慢下降趋势

其长期强化效果有待进一步探讨。

Abstract

In order to enhance nitrogen removal of sewage treatment processes in cold areas or seasons

a cold-adapted ammonia-oxidizing functional flora was obtained by domestication of activated sludge and used to augment the ammonia oxidation function in an anaerobic-anoxic-aerobic(A2/O)process operated at(14±1)℃.The seed sludge was collected from the secondary sedimentation tank of a local urban sewage treatment plant and domesticated in a sequencing batch reactor(SBR)for five operational cycles with selective medium at(14±1)℃.Loading with semi-soft fiber filler

the SBR was operated for another five operational cycles to immobilize the cold-adapted ammonia-oxidizing functional flora.The results showed that the ammonia oxidation capacity of the inoculated activated sludge was enhanced remarkably after domesticating for the five operational cycles with NH3-N removal of 79.5% when the initial NH3-N ranged from 205—236 mg·L-1 in the SBR.After the next 5 operational cycles the cold-adapted ammonia-oxidizing functional flora was immobilized on the filler as biofilm.When the cold-adapted ammonia-oxidizing biofilm was put into the aerobic pool of the A2/O process with a mass ratio of 3.24%

the average ammonia removal in the process increased from 65% to 78%.The COD and total nitrogen removal was significantly improved as well.However

the ammonia removal in the low temperature A2/O process dropped slowly along with running time.Thus

the bioaugmentation effect in the long run should be investigated in the future.

关键词

Keywords

references

Views

862

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Power generation characteristics of central pulse gas-liquid-solid circulating fluidized bed microbial fuel cell

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

Shortcut nitrification and denitrifying phosphorus removal in improved A2/O technique with long SRT

Related Author

WEI Xiang

LIU Zhuo

CHEN Hongwei

LI Yanmin

SHI Ruipeng

WANG Meng

SONG Yangfan

ZHU Lou

Related Institution

Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University

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

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

School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University

⁰

Domestication of a cold-adapted ammonia-oxidizing functional flora and its bioaugmentation on A2/O wastewater treatment process at low temperature

DOI：10.3969/j.issn.0438-1157.2013.09.039

摘要

Abstract

关键词

Keywords

references

Domestication of a cold-adapted ammonia-oxidizing functional flora and its bioaugmentation on A²/O wastewater treatment process at low temperature