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Successful bio-electrochemical treatment of nitrogenous mariculture wastewater by enhancing nitrogen removal via synergy of algae and cathodic photo-electro-catalysis.
Sci Total Environ. 2020 Nov 15; 743:140738.ST

Abstract

Systems with catalytic cathode in microbial fuel cell can achieve high treatment efficiency enhanced by the cathode. Such bio-electrochemical systems have potential applications in treating high-salinity nitrogenous mariculture wastewater. For sustainable development of the mariculture industry, enhancing inorganic nitrogen removal is of vital importance due to the low carbon to nitrogen (C/N) ratio of wastewater and strict discharge standard. Herein, simulated mariculture wastewater (high salinity, low COD/N ratio of 0.5-1.0) was successfully treated in an integrated self-biased bio-electrochemical system, with catalyst (TiO2/Co-WO3/SiC) on the cathode and natural-grown algae in the cathode chamber. Satisfactory nitrogen removal (94.05% NH4+-N and 77.35% inorganic nitrogen) and favorable 76.66% removal of organics (UV254) were both achieved, with visible light illumination. The NH4+-N in the effluent was below 2 mg L-1. The synergy of bacteria, algae and cathode, promoted pollutant removal, and made the system sustainable and efficient in treating mariculture wastewater.

Authors+Show Affiliations

Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science & Technology, Dalian University of Technology, Dalian 116024, China.Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science & Technology, Dalian University of Technology, Dalian 116024, China; School of Ocean Science and Technology, Dalian University of Technology, Panjin, China. Electronic address: lifenliu@dlut.edu.cn.Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science & Technology, Dalian University of Technology, Dalian 116024, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32673918

Citation

Jiaqi, Sun, et al. "Successful Bio-electrochemical Treatment of Nitrogenous Mariculture Wastewater By Enhancing Nitrogen Removal Via Synergy of Algae and Cathodic Photo-electro-catalysis." The Science of the Total Environment, vol. 743, 2020, p. 140738.
Jiaqi S, Lifen L, Fenglin Y. Successful bio-electrochemical treatment of nitrogenous mariculture wastewater by enhancing nitrogen removal via synergy of algae and cathodic photo-electro-catalysis. Sci Total Environ. 2020;743:140738.
Jiaqi, S., Lifen, L., & Fenglin, Y. (2020). Successful bio-electrochemical treatment of nitrogenous mariculture wastewater by enhancing nitrogen removal via synergy of algae and cathodic photo-electro-catalysis. The Science of the Total Environment, 743, 140738. https://doi.org/10.1016/j.scitotenv.2020.140738
Jiaqi S, Lifen L, Fenglin Y. Successful Bio-electrochemical Treatment of Nitrogenous Mariculture Wastewater By Enhancing Nitrogen Removal Via Synergy of Algae and Cathodic Photo-electro-catalysis. Sci Total Environ. 2020 Nov 15;743:140738. PubMed PMID: 32673918.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Successful bio-electrochemical treatment of nitrogenous mariculture wastewater by enhancing nitrogen removal via synergy of algae and cathodic photo-electro-catalysis. AU - Jiaqi,Sun, AU - Lifen,Liu, AU - Fenglin,Yang, Y1 - 2020/07/08/ PY - 2020/06/01/received PY - 2020/07/02/revised PY - 2020/07/02/accepted PY - 2020/7/17/pubmed PY - 2020/9/17/medline PY - 2020/7/17/entrez KW - Algae KW - Catalytic electrode KW - Mariculture wastewater treatment KW - Microbial fuel cell KW - Photo-electro-catalysis SP - 140738 EP - 140738 JF - The Science of the total environment JO - Sci. Total Environ. VL - 743 N2 - Systems with catalytic cathode in microbial fuel cell can achieve high treatment efficiency enhanced by the cathode. Such bio-electrochemical systems have potential applications in treating high-salinity nitrogenous mariculture wastewater. For sustainable development of the mariculture industry, enhancing inorganic nitrogen removal is of vital importance due to the low carbon to nitrogen (C/N) ratio of wastewater and strict discharge standard. Herein, simulated mariculture wastewater (high salinity, low COD/N ratio of 0.5-1.0) was successfully treated in an integrated self-biased bio-electrochemical system, with catalyst (TiO2/Co-WO3/SiC) on the cathode and natural-grown algae in the cathode chamber. Satisfactory nitrogen removal (94.05% NH4+-N and 77.35% inorganic nitrogen) and favorable 76.66% removal of organics (UV254) were both achieved, with visible light illumination. The NH4+-N in the effluent was below 2 mg L-1. The synergy of bacteria, algae and cathode, promoted pollutant removal, and made the system sustainable and efficient in treating mariculture wastewater. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/32673918/Successful_bio_electrochemical_treatment_of_nitrogenous_mariculture_wastewater_by_enhancing_nitrogen_removal_via_synergy_of_algae_and_cathodic_photo_electro_catalysis_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(20)34260-1 DB - PRIME DP - Unbound Medicine ER -
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