Effect of operation mode on characteristics and N<sub>2</sub>O emissions during simultaneous nitrification and denitrification <italic style="font-style: italic">via</italic> nitrite in SBBR

GONG Youkui; PENG Yongzhen

doi:10.11949/j.issn.0438-1157.20190085

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Effect of operation mode on characteristics and N₂O emissions during simultaneous nitrification and denitrification via nitrite in SBBR

Energy and environmental engineering | 更新时间：2026-07-24

- Effect of operation mode on characteristics and N₂O emissions during simultaneous nitrification and denitrification via nitrite in SBBR
- CIESC Journal Vol. 70, Issue 6, Pages: 2289-2297(2019)
- 作者机构：
  
  1.烟台职业学院建筑工程系，山东烟台 264000
  2.北京工业大学城镇污水深度处理与资源化利用技术国家工程实验室，北京 100124
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20190085
  CLC： X 703.1
- Received：25 January 2019，
  
  Revised：2019-03-05，
  
  Online First：15 June 2020，
  
  Published：05 June 2019
- 稿件说明：
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巩有奎, 彭永臻. 运行方式对SBBR亚硝酸型同步脱氮及N₂O释放的影响[J]. 化工学报, 2019, 70(6): 2289-2297 DOI: 10.11949/j.issn.0438-1157.20190085.

GONG Youkui, PENG Yongzhen. Effect of operation mode on characteristics and N₂O emissions during simultaneous nitrification and denitrification via nitrite in SBBR[J]. CIESC Journal, 2019, 70(6): 2289-2297 DOI: 10.11949/j.issn.0438-1157.20190085.
巩有奎, 彭永臻. 运行方式对SBBR亚硝酸型同步脱氮及N₂O释放的影响[J]. 化工学报, 2019, 70(6): 2289-2297 DOI: 10.11949/j.issn.0438-1157.20190085. DOI：

GONG Youkui, PENG Yongzhen. Effect of operation mode on characteristics and N₂O emissions during simultaneous nitrification and denitrification via nitrite in SBBR[J]. CIESC Journal, 2019, 70(6): 2289-2297 DOI: 10.11949/j.issn.0438-1157.20190085. DOI：

摘要

以实际生活污水为处理对象，利用序批式生物膜反应器（sequencing batch biofilm reactor，SBBR），碳纤维为填料（填充率35%），在(20±2.0)℃条件下，分别通过低氧和间歇曝气两种运行方式，成功实现了亚硝酸型同步生物脱氮（simultaneous nitrification and denitrification

SND）过程。120 d后，氨氧化菌（ammonia oxidizing bacteria

AOB）成为硝化系统中优势菌种。AOB具有的“饱食饥饿”特性保证间歇曝气下能快速实现亚硝积累。生物膜能够吸附大量有机物并以聚β–羟基烷酸酯(poly-β-hydroxyalkanoate

PHA)的形式储存在微生物体内，用作后续同步反硝化过程所需碳源。低氧（DO=0.5 mg/L）和间歇曝气条件下，SBBR反应器氨氮去除率均达95%以上，同步脱氮效率分别为77.9%和87.1%，出水以

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https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=113911881&type=

5.41866684

3.47133350

-N为主，N

O产率分别为4.38%和3.65%。低DO和间歇曝气均能降低COD降解速率，为同步反硝化过程节省外碳源作为电子供体，降低N

O释放量。低氧条件下，AOB的好氧反硝化过程和以PHA作为内碳源的异养菌反硝化过程，都会导致N

O释放增加。间歇曝气条件下交替存在的缺氧环境降低了好氧反硝化底物，有利于减少N

O释放量。

Abstract

Taking actual domestic wastewater (C/N = 3.5) as influent substrate and carbon fiber as biological carrier (filling rate of 35%)

the simultaneous nitrification and denitrification

via

nitrite was achieved in a sequencing batch biofilm reactor (SBBR) using limited DO concentration and intermittent aeration respectively at normal temperature of (20±2.0)℃. The ammonia oxidizing bacteria (AOB) became the dominant species in the SBBR in 120 d. The “feast-famine” characteristics of AOB led to the rapid accumulation of nitrite under intermittent aeration conditions. Most of COD was taken up and converted to polyhydroxyalkanoate (PHA)

which was used as internal carbon sources for the following denitrification process. Under the conditions of low oxygen (DO=0.5 mg/L) and intermittent aeration

the removal efficiency of

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https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=113911871&type=

6.43466663

4.06400013

-N in both reactors was more than 95%. The yield of N

O was 4.38% and 3.65%

the SND efficiency was 77.9% and 87.1%

respectively. The effluen

t was mainly

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=113911920&type=

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7.28133297

4.06400013

Both the lower DO concentration and intermittent aeration could reduce the degradation rate of COD

provide the external carbon source needed for denitrification

and reduce the amount of N

O emissions. The aerobic denitrification process of AOB and denitrification process of

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https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=113911921&type=

6.18066692

4.06400013

-N using internal PHA as carbon source can promote the emissions of N

O. The anoxic/aerobic environment under intermittent aeration conditions reduced the substrate of aerobic denitrification substrate and is beneficial to the reduction of N

O emission.

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Effect of operation mode on characteristics and N2O emissions during simultaneous nitrification and denitrification via nitrite in SBBR

DOI：10.11949/j.issn.0438-1157.20190085

摘要

Abstract

关键词

Keywords

references

Effect of operation mode on characteristics and N₂O emissions during simultaneous nitrification and denitrification via nitrite in SBBR