Bioaugmentation of two-stage aerobic sequencing batch reactor with mixed strains for high nitrate nitrogen wastewater treatment

Mengmeng Wang; Gang Cao; Naixian Feng; Yongzhang Pan

doi:10.1016/j.cjche.2020.08.014

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Bioaugmentation of two-stage aerobic sequencing batch reactor with mixed strains for high nitrate nitrogen wastewater treatment

Biotechnology and Bioengineering | Updated：2026-01-06

- Bioaugmentation of two-stage aerobic sequencing batch reactor with mixed strains for high nitrate nitrogen wastewater treatment
- Bioaugmentation of two-stage aerobic sequencing batch reactor with mixed strains for high nitrate nitrogen wastewater treatment
- 中国化学工程学报（英文版） 2020年28卷第12期页码：3103-3109
- Affiliations：
  
  1. College of Environment, Jinan University,Guangzhou,China,511443
  2. Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University,Guangzhou,China,510632
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2020.08.014
  中图分类号：
- 纸质出版：2020
- Accepted：
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Mengmeng Wang, Gang Cao, Naixian Feng, 等. Bioaugmentation of two-stage aerobic sequencing batch reactor with mixed strains for high nitrate nitrogen wastewater treatment[J]. 中国化学工程学报（英文版）, 2020,28(12):3103-3109.

Mengmeng Wang, Gang Cao, Naixian Feng, Yongzhang Pan. Bioaugmentation of two-stage aerobic sequencing batch reactor with mixed strains for high nitrate nitrogen wastewater treatment[J]. Chinese Journal of Chemical Engineering, 2020, 28(12): 3103-3109.
Mengmeng Wang, Gang Cao, Naixian Feng, 等. Bioaugmentation of two-stage aerobic sequencing batch reactor with mixed strains for high nitrate nitrogen wastewater treatment[J]. 中国化学工程学报（英文版）, 2020,28(12):3103-3109. DOI： 10.1016/j.cjche.2020.08.014.

Mengmeng Wang, Gang Cao, Naixian Feng, Yongzhang Pan. Bioaugmentation of two-stage aerobic sequencing batch reactor with mixed strains for high nitrate nitrogen wastewater treatment[J]. Chinese Journal of Chemical Engineering, 2020, 28(12): 3103-3109. DOI： 10.1016/j.cjche.2020.08.014.

摘要

Abstract

Mixed strains

Delftia

sp.YH01 and

Acidovorax

sp.YH02

with capability of heterotrophic nitrification-aerobic denitrification

were introduced into a two-stage aerobic sequencing batch reactor to enhance NO

-N removal. With optimal C/N of 8

efficient NO

-N removal was achieved at initial NO

-N concentration of 2000 mg·L

-1

. Meanwhile

the massive accumulation of NO

-N was avoided during the long operation. Compared to the one-stage aerobic sequencing batch reactor

the removal efficiency of NO

-N and TN in the two-stage aerobic sequencing batch reactor was increased by 36.5% and 42.7%

which respectively was 93.8% and 88.4%. Microbial community study showed that the mixed strains have the stronger viability and can synergistically denitrify with the indigenous microorganisms in system

such as

Azoarcus

Uncultured

Saprospiraceae

Thauera

Paracocccus

which could be major contributors for aerobic denitrification. The proposed technology was shown to achieve high-efficiency treatment of high NO

-N wastewater through aerobic denitrification.

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