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Enhanced ammonia nitration by Bio-Electrochemical systems with constructed wetlands.
Wang, Baoshan; Liu, Yingming; Zhang, Xu; Wen, Gang; Chen, Xiaojie; Wen, Chengcheng; Zhang, Hongwei.
Afiliación
  • Wang B; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China. Electronic address: wbs@mail.lzjtu.cn.
  • Liu Y; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China. Electronic address: 11230074@stu.lzjtu.edu.cn.
  • Zhang X; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China. Electronic address: 11210101@stu.lzjtu.edu.cn.
  • Wen G; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China. Electronic address: hitwengang@163.com.
  • Chen X; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China. Electronic address: 12211084@stu.lzjtu.edu.cn.
  • Wen C; Gansu Academy of Eco-environmental Sciences, Lanzhou 730030, PR China. Electronic address: hitchengchengwen@xauat.edu.cn.
  • Zhang H; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China. Electronic address: zhw@mail.lzjtu.cn.
Bioresour Technol ; 410: 131296, 2024 Oct.
Article en En | MEDLINE | ID: mdl-39153692
ABSTRACT
The insufficient abundance of electron acceptors for ammonia during electron transfer in constructed wetlands (CWs) results in low nitrification rates. This study developed a green, low-carbon CWs enhanced by a bio-electrochemical systems (BESs-CWs) to achieve efficient ammonia (NH4+-N) removal. Electrode enhancement significantly promoted NH4+-N removal. Compared with traditional CWs, the average removal efficiency of NH4+-N in the BESs-CWs increased from 62.9 % to 90.6 %. The intermittent voltage driven by the photovoltaic power system caused minimal plant stress. However, electrode enhancement significantly affected microbial communities involved in short-path nitrification and denitrification within the biofilm. Specifically, the removal rate of NH4+-N by BESs-CWs under electrode enhancement was increased by 27.7 % compared to traditional CWs, enhancing the electron output of NH4+-N in the BESs-CWs. This system provides a method of ammonia nitration for CWs under poor electron acceptor conditions.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Humedales / Nitrificación / Amoníaco Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
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XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Humedales / Nitrificación / Amoníaco Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido