Forschungsdaten – Titel und Zusammenfassungen von Publikationen, extrahierte Daten und Katalogeinträge – erscheinen in ihrer Originalsprache Englisch.
Long Chen, Yanli Guo, Shaohui Zhang, Wenqing Ma
BES research with climate-geographic focus on geographic, economic, standard. Abstract Bioelectrochemical system is a novel method for controll...
Erstellt von der MESSAI-Extraktionspipeline · mit dem Quell-PDF abgleichen
Noch keine extrahierten Parameter – fordern Sie eine KI-Extraktion an, um diese Publikation mit den Literaturverteilungen zu vergleichen.
Dieser Publikation ist noch kein 3D-Modell zugeordnet. Die Parameterbereiche oben ordnen die berichteten Werte trotzdem in die Literaturverteilung ein.
Abstract Bioelectrochemical system is a novel method for controlling down nitrate pollution, yet the feasibility of using methane as the electron donors for denitrification in this system remains unknown. In this study, using the effluent from mother BESs as inocula, a denitrifying anaerobic methane oxidation bioelectrochemical system was successfully started up in 92 days. When operated with 50 mmol/L phosphate buffer solution at pH 7 and 30°C, the maximum methane consumption, nitrate, and total nitrogen removal load reached 0.23 ± 0.01 mmol/d, 551.0 ± 22.1 mg N/m 3 /d, and 64.0 ± 18.8 mg N/m 3 /d, respectively. Meanwhile, the peak voltage of 93 ± 4 mV, the anodic coulombic efficiency of 6.99 ± 0.20%, and the maximum power density of 219.86 mW/m 3 were obtained. The metagenomics profiles revealed that the dominant denitrifying bacteria in the cathodic chamber reduced most nitrate to nitrite through denitrification and assimilatory reduction. In the anodic chamber, various archaea including methanotrophs and methanogens converted methane via reverse methanogenesis to form formate (or H 2 ), acetate, and methyl compounds, which were than utilized by electroactive bacteria to generate electricity. Practitioner Points A denitrifying anaerobic methane oxidation BES was successfully started up in 92 d. Simultaneous removal of methane and nitrate was achieved in the DAMO‐BES. Functional genes related to AMO and denitrification were detected in the DAMO‐BES. Methylocystis can mediate AMO in the anode and denitrification in the cathode.