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The mixotrophic denitrification characteristics of Zoogloea sp. L2 accelerated by the redox mediator of 2-hydroxy-1,4-naphthoquinone.
Bioresour Technol. 2020 Sep; 311:123533.BT

Abstract

Denitrification in mixed culture system has been extensively researched to date, but few studies have focused on accelerating the process using redox mediators to promote electron transfer. Strain L2, an iron-reducing bacteria, can remove 75.44% of nitrate under temperature of 30.60 °C, pH of 6.75 and Fe2+ concentration of 27.86 mg·L-1. Additionally, the removal rate of nitrate reached 1.516 mg·L-1·h-1 in 8 h with the addition of 0.030 mmol·L-1 2-hydroxy-1,4-naphthoquinone (HNQ), which increased by 1.38 times than control group. Furthermore, analysis by fluorescence spectroscopy, flow cytometer and gas chromatography demonstrated that HNQ positively stimulated denitrification. This study provides a reference for enhancing denitrification in mixed culture and lays the foundation for the practical application of redox mediators in groundwater treatment.

Authors+Show Affiliations

School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. Electronic address: sjf1977518@sina.com.School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32460131

Citation

Su, Jun Feng, et al. "The Mixotrophic Denitrification Characteristics of Zoogloea Sp. L2 Accelerated By the Redox Mediator of 2-hydroxy-1,4-naphthoquinone." Bioresource Technology, vol. 311, 2020, p. 123533.
Su JF, Li GQ, Huang TL, et al. The mixotrophic denitrification characteristics of Zoogloea sp. L2 accelerated by the redox mediator of 2-hydroxy-1,4-naphthoquinone. Bioresour Technol. 2020;311:123533.
Su, J. F., Li, G. Q., Huang, T. L., & Xue, L. (2020). The mixotrophic denitrification characteristics of Zoogloea sp. L2 accelerated by the redox mediator of 2-hydroxy-1,4-naphthoquinone. Bioresource Technology, 311, 123533. https://doi.org/10.1016/j.biortech.2020.123533
Su JF, et al. The Mixotrophic Denitrification Characteristics of Zoogloea Sp. L2 Accelerated By the Redox Mediator of 2-hydroxy-1,4-naphthoquinone. Bioresour Technol. 2020;311:123533. PubMed PMID: 32460131.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The mixotrophic denitrification characteristics of Zoogloea sp. L2 accelerated by the redox mediator of 2-hydroxy-1,4-naphthoquinone. AU - Su,Jun Feng, AU - Li,Guo Qing, AU - Huang,Ting Lin, AU - Xue,Lei, Y1 - 2020/05/19/ PY - 2020/03/25/received PY - 2020/05/11/revised PY - 2020/05/12/accepted PY - 2020/5/28/pubmed PY - 2020/6/10/medline PY - 2020/5/28/entrez KW - Denitrification KW - HNQ KW - Iron-reducing bacteria KW - RSM KW - Redox mediators SP - 123533 EP - 123533 JF - Bioresource technology JO - Bioresour. Technol. VL - 311 N2 - Denitrification in mixed culture system has been extensively researched to date, but few studies have focused on accelerating the process using redox mediators to promote electron transfer. Strain L2, an iron-reducing bacteria, can remove 75.44% of nitrate under temperature of 30.60 °C, pH of 6.75 and Fe2+ concentration of 27.86 mg·L-1. Additionally, the removal rate of nitrate reached 1.516 mg·L-1·h-1 in 8 h with the addition of 0.030 mmol·L-1 2-hydroxy-1,4-naphthoquinone (HNQ), which increased by 1.38 times than control group. Furthermore, analysis by fluorescence spectroscopy, flow cytometer and gas chromatography demonstrated that HNQ positively stimulated denitrification. This study provides a reference for enhancing denitrification in mixed culture and lays the foundation for the practical application of redox mediators in groundwater treatment. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/32460131/The_mixotrophic_denitrification_characteristics_of_Zoogloea_sp._L2_accelerated_by_the_redox_mediator_of_2-hydroxy-1,4-naphthoquinone L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(20)30805-1 DB - PRIME DP - Unbound Medicine ER -
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