EFFECT OF ORGANIC MATTER CONCENTRATION VARIATION ON NITROGEN REMOVAL PERFORMANCE AND BACTERIA COMMUNITY STRUCTURE IN A HYBRID SBR ANAMMOX SYSTEM

MEN Yan; LIU Lingjie; ZHU Yaxin; BI Yanmeng; MENG Fansheng; YU Jingjie; WANG Shaopo

doi:10.13205/j.hjgc.202308011

Volume 41 Issue 8

Aug. 2023

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MEN Yan, LIU Lingjie, ZHU Yaxin, BI Yanmeng, MENG Fansheng, YU Jingjie, WANG Shaopo. EFFECT OF ORGANIC MATTER CONCENTRATION VARIATION ON NITROGEN REMOVAL PERFORMANCE AND BACTERIA COMMUNITY STRUCTURE IN A HYBRID SBR ANAMMOX SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(8): 83-90. doi: 10.13205/j.hjgc.202308011

Citation:

MEN Yan, LIU Lingjie, ZHU Yaxin, BI Yanmeng, MENG Fansheng, YU Jingjie, WANG Shaopo. EFFECT OF ORGANIC MATTER CONCENTRATION VARIATION ON NITROGEN REMOVAL PERFORMANCE AND BACTERIA COMMUNITY STRUCTURE IN A HYBRID SBR ANAMMOX SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(8): 83-90. doi: 10.13205/j.hjgc.202308011

Citation:

MEN Yan, LIU Lingjie, ZHU Yaxin, BI Yanmeng, MENG Fansheng, YU Jingjie, WANG Shaopo. EFFECT OF ORGANIC MATTER CONCENTRATION VARIATION ON NITROGEN REMOVAL PERFORMANCE AND BACTERIA COMMUNITY STRUCTURE IN A HYBRID SBR ANAMMOX SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(8): 83-90. doi: 10.13205/j.hjgc.202308011

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EFFECT OF ORGANIC MATTER CONCENTRATION VARIATION ON NITROGEN REMOVAL PERFORMANCE AND BACTERIA COMMUNITY STRUCTURE IN A HYBRID SBR ANAMMOX SYSTEM

doi: 10.13205/j.hjgc.202308011

MEN Yan^1,2,
LIU Lingjie^1,2,
ZHU Yaxin^1,2,
BI Yanmeng^1,2,
MENG Fansheng^1,2,
YU Jingjie^1,2,
WANG Shaopo^{1,2
,
,}

1. School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China;
2. Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin 300384, China

Received Date: 2022-04-11
Available Online: 2023-11-15

Abstract

Abstract

A sequencing batch reactor (SBR) was used to investigate the effect of organic matter (COD) concentration on nitrogen removal performance and microbial community structure of a hybrid anammox system. The results showed that under the condition of influent COD concentration of 120 mg/L, the system had the best-enhanced nitrogen removal efficiency, and the average total nitrogen removal efficiency (NRE) and total nitrogen removal rate (NRR) were 95.4% and 0.40 kg/(m³·d), respectively; when the influent COD continued to increase to 150 mg/L, the anammox activity decreased obviously, and the NRE and NRR decreased to 75.8% and 0.32 kg/(m³·d), respectively. The results of 16S rRNA high-throughput sequencing showed that the relative abundance of denitrifying bacteria in the system increased significantly at a high COD concentration (120~150 mg/L), and denitrifying bacteria were mainly found in the flocculated sludge, while the Anammox bacteria were almost undetectable in the flocculated sludge, and Anammox bacteria maintained a high relative abundance (19.1%~32.5%) on the biofilm. This indicated that an appropriate COD concentration could achieve the couple of Anammox with denitrification and effectively enhance the function of the SBR system, and the presence of biofilm in the system ensured the nitrogen removal stability of the hybrid Anammox system.
- Anammox,
- denitrification,
- biological nitrogen removal,
- flocculated sludge,
- biofilm

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References(29)

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