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High-concentration nitrogen removal coupling with bioelectric power generation by a self-sustaining algal-bacterial biocathode photo-bioelectrochemical system under daily light/dark cycle.
Chemosphere. 2019 May; 222:797-809.C

Abstract

High-concentration nitrogen removal coupled with bioelectric power generation in an algal-bacterial biocathode photo-bioelectrochemical system (PBES) was investigated. The PBES can self-sustaining operation with continuous power output under day/night cycle by alternately using photosynthetic dissolved oxygen and nitrate/nitrite as cathodic electron acceptors. The PBES generated a high maximum power of 110mw/m2 under illumination and relatively lower power of 40mw/m2 under dark. The bioelectricity generation was accompanied by high-concentration nitrogen removal in the algal-bacterial biocathode. The NH4N was removed completely within 120 h while maximum NO3N removal efficiency of 86% and maximum total nitrogen removal efficiency of 83% can be reached after 192 h at initial NH4N concentration of 314 mg/L and NO3N concentration of 330 mg/L. Combined processes of bioelectrochemical reduction and algal-bacterial interactions provided multiple approaches for nitrogen removal in the biocathode, including nitrifying using photosynthetic oxygen, bioelectrochemical denitrification using the cathode as electron donor, heterotrophic denitrification using photosynthetically produced dissolved organic matters as carbon source and algal-bacterial uptake. Accelerated nitrogen removal with simultaneously improved cathode performance was observed at high concentration of nitrogen and phosphate buffer due to enhanced algal activities for photosynthetic oxygen release and enhanced algal-bacterial interactions for nitrogen transformation. Addition of external organic carbon negatively affected nitrification and decreased cathode potential due to oxygen consumption by aerobic carbon oxidation but enhanced denitrification due to continuous release of high concentration of photosynthetically produced dissolved organic matters by alga. The PBEC was demonstrated as an energy-saving approach for high-strengthen nitrogenous wastewater treatment.

Authors+Show Affiliations

Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China.Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China.Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China.School of Chemical and Environmental Engineering, Shandong Peninsula, Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science & Technology, Shouguang, 262700, China.Guangzhou University-Linköping University Research Center on Urban Sustainable, Development, Guangzhou University, 510006, Guangzhou, China.Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China.Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China. Electronic address: yuanyong@soil.gd.cn.Institute of Environmental Engineering, National Sun Yat-sen University, Gaoxiong, 80424, Taiwan.Institute of Environmental Engineering, National Sun Yat-sen University, Gaoxiong, 80424, Taiwan.Department of Environmental Science and Engineering, Tunghai University, Taichung, 40704, Taiwan.Department of Civil Engineering, National Chi Nan University, Nanto, 54561, Taiwan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30739064

Citation

Sun, Jian, et al. "High-concentration Nitrogen Removal Coupling With Bioelectric Power Generation By a Self-sustaining Algal-bacterial Biocathode Photo-bioelectrochemical System Under Daily Light/dark Cycle." Chemosphere, vol. 222, 2019, pp. 797-809.
Sun J, Xu W, Cai B, et al. High-concentration nitrogen removal coupling with bioelectric power generation by a self-sustaining algal-bacterial biocathode photo-bioelectrochemical system under daily light/dark cycle. Chemosphere. 2019;222:797-809.
Sun, J., Xu, W., Cai, B., Huang, G., Zhang, H., Zhang, Y., Yuan, Y., Chang, K., Chen, K., Peng, Y., & Chen, K. (2019). High-concentration nitrogen removal coupling with bioelectric power generation by a self-sustaining algal-bacterial biocathode photo-bioelectrochemical system under daily light/dark cycle. Chemosphere, 222, 797-809. https://doi.org/10.1016/j.chemosphere.2019.01.191
Sun J, et al. High-concentration Nitrogen Removal Coupling With Bioelectric Power Generation By a Self-sustaining Algal-bacterial Biocathode Photo-bioelectrochemical System Under Daily Light/dark Cycle. Chemosphere. 2019;222:797-809. PubMed PMID: 30739064.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - High-concentration nitrogen removal coupling with bioelectric power generation by a self-sustaining algal-bacterial biocathode photo-bioelectrochemical system under daily light/dark cycle. AU - Sun,Jian, AU - Xu,Wenjing, AU - Cai,Bihai, AU - Huang,Guofu, AU - Zhang,Hongguo, AU - Zhang,Yaping, AU - Yuan,Yong, AU - Chang,Kenlin, AU - Chen,Kangxing, AU - Peng,Yenping, AU - Chen,Kufan, Y1 - 2019/02/04/ PY - 2018/07/17/received PY - 2019/01/25/revised PY - 2019/01/31/accepted PY - 2019/2/11/pubmed PY - 2019/4/13/medline PY - 2019/2/11/entrez KW - Algal-bacterial biocathode KW - Bioelectric power generation KW - Bioelectrochemical systems KW - Daily light/dark cycle KW - High-concentration nitrogen removal KW - Microbial community SP - 797 EP - 809 JF - Chemosphere JO - Chemosphere VL - 222 N2 - High-concentration nitrogen removal coupled with bioelectric power generation in an algal-bacterial biocathode photo-bioelectrochemical system (PBES) was investigated. The PBES can self-sustaining operation with continuous power output under day/night cycle by alternately using photosynthetic dissolved oxygen and nitrate/nitrite as cathodic electron acceptors. The PBES generated a high maximum power of 110mw/m2 under illumination and relatively lower power of 40mw/m2 under dark. The bioelectricity generation was accompanied by high-concentration nitrogen removal in the algal-bacterial biocathode. The NH4N was removed completely within 120 h while maximum NO3N removal efficiency of 86% and maximum total nitrogen removal efficiency of 83% can be reached after 192 h at initial NH4N concentration of 314 mg/L and NO3N concentration of 330 mg/L. Combined processes of bioelectrochemical reduction and algal-bacterial interactions provided multiple approaches for nitrogen removal in the biocathode, including nitrifying using photosynthetic oxygen, bioelectrochemical denitrification using the cathode as electron donor, heterotrophic denitrification using photosynthetically produced dissolved organic matters as carbon source and algal-bacterial uptake. Accelerated nitrogen removal with simultaneously improved cathode performance was observed at high concentration of nitrogen and phosphate buffer due to enhanced algal activities for photosynthetic oxygen release and enhanced algal-bacterial interactions for nitrogen transformation. Addition of external organic carbon negatively affected nitrification and decreased cathode potential due to oxygen consumption by aerobic carbon oxidation but enhanced denitrification due to continuous release of high concentration of photosynthetically produced dissolved organic matters by alga. The PBEC was demonstrated as an energy-saving approach for high-strengthen nitrogenous wastewater treatment. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/30739064/High_concentration_nitrogen_removal_coupling_with_bioelectric_power_generation_by_a_self_sustaining_algal_bacterial_biocathode_photo_bioelectrochemical_system_under_daily_light/dark_cycle_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(19)30213-9 DB - PRIME DP - Unbound Medicine ER -