EFFECTS OF <i>ACHROMOBACTER DENITRIFICANS</i> STRAIN 2-5 WITH IRON OXIDATION AND AEROBIC DENITRIFICATION FUNCTION ON BIOLOGICAL NITROGEN REMOVAL PERFORMANCE AND COMMUNITY STRUCTURE IN A SEQUENCING BATCH REACTOR

YI Hongxue; LI Jie; WANG Yae; ZHAO Wei; XIE Huina; ZHANG Wenli; QUAN Hairong; MU Hao; HU Kaiyao

doi:10.13205/j.hjgc.202212028

Volume 40 Issue 12

Nov. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(12): 211-216

YI Hongxue, LI Jie, WANG Yae, ZHAO Wei, XIE Huina, ZHANG Wenli, QUAN Hairong, MU Hao, HU Kaiyao. EFFECTS OF ACHROMOBACTER DENITRIFICANS STRAIN 2-5 WITH IRON OXIDATION AND AEROBIC DENITRIFICATION FUNCTION ON BIOLOGICAL NITROGEN REMOVAL PERFORMANCE AND COMMUNITY STRUCTURE IN A SEQUENCING BATCH REACTOR[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(12): 211-216. doi: 10.13205/j.hjgc.202212028

Citation:

YI Hongxue, LI Jie, WANG Yae, ZHAO Wei, XIE Huina, ZHANG Wenli, QUAN Hairong, MU Hao, HU Kaiyao. EFFECTS OF ACHROMOBACTER DENITRIFICANS STRAIN 2-5 WITH IRON OXIDATION AND AEROBIC DENITRIFICATION FUNCTION ON BIOLOGICAL NITROGEN REMOVAL PERFORMANCE AND COMMUNITY STRUCTURE IN A SEQUENCING BATCH REACTOR[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(12): 211-216. doi: 10.13205/j.hjgc.202212028

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EFFECTS OF ACHROMOBACTER DENITRIFICANS STRAIN 2-5 WITH IRON OXIDATION AND AEROBIC DENITRIFICATION FUNCTION ON BIOLOGICAL NITROGEN REMOVAL PERFORMANCE AND COMMUNITY STRUCTURE IN A SEQUENCING BATCH REACTOR

doi: 10.13205/j.hjgc.202212028

1. School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;
2. Northwest Research Institute of Engineering Investiga, Xi'an 710000, China;
3. China Railway First Survey and Design Institute Group Co., Ltd, Xi'an 710000, China

Received Date: 2021-12-31
Available Online: 2023-03-23

Abstract

Abstract

The effect of an Achromobacter denitrificans strain 2-5, with the function of iron oxidation and aerobic denitrification, on enhancing the denitrification performance of an SBR reactor and its bacterial community structure was studied in this paper. The results showed that the addition of Fe⁰ and Achromobacter denitricans strain 2-5 could improve the removal efficiency of NH₄⁺-N and TN in the SBR reactor. Compared with the ordinary SBR reactors, the average removal rates of NH₄⁺-N and TN were increased by 4.13% and 15.73%. Through high-throughput sequencing analysis, differences were found in the composition of microbial community structure in each reactor. At the phylum level, Proteobacteria, Bacteroidetes, Actinobacteria and Firmicutes were the dominant phyla. The addition of Fe⁰ and Achromobacter denitrificans strain 2-5 increased the diversity of bacteria with aerobic denitrification function in the reactor and strengthened the denitrification effect of the SBR reactor. The research results provide a theoretical basis for Fe⁰ to promote the metabolic growth of aerobic denitrifying bacteria and are conducive to the practical application of aerobic denitrifying bacteria.
- aerobic denitrification,
- zero-valent iron,
- Achromobacter denitrificans strain 2-5,
- bioaugmentation,
- community structure

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References(33)

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