Electricity generation from wastewater using an anaerobic fluidized bed microbial fuel cell / Weifang Kong in Industrial & engineering chemistry research, Vol. 50 N° 21 (Novembre 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 21 (Novembre 2011) . - pp. 12225-12232 Titre : Electricity generation from wastewater using an anaerobic fluidized bed microbial fuel cell Type de document : texte imprimé Auteurs : Weifang Kong, Auteur ; Qingjie Guo, Auteur ; Xuyun Wang, Auteur Année de publication : 2011 Article en page(s) : pp. 12225-12232 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Fuel cell Fluidized bed Fluidization Anaerobe Waste water Résumé : The anaerobic fluidized bed microbial fuel cell (AFBMFC) was developed to generate electricity while simultaneously treating wastewater. During a complete cycle, the AFBMFC continuously generated electricity with a maximum power density of 1100 mW/m2 and removal of total chemical oxygen demand (COD) of 89%. To achieve this power density, the artificial electron-mediator neutral red (NR) was employed in the anode chamber. Granular biological electrodes, fluidization behavior, electron mediators, and temperature were evaluated to improve power production and wastewater treatment efficiency. The results showed that the maximum power density production of granule-graphite AFBMFC was 530 mW/m2, much higher than 410 mW/m2 using a granular activated carbon AFBMFC in the same reactor. Fluidization behaviors enhance the mass transfer and momentum transfer between activated carbon and wastewater. The power density increased with increasing methylene blue (MB) and NR concentration. Furthermore, power density reveals a slight increase as MB and NR concentrations exceed 0.5 and 1.7 mmol/L. The optimum temperature ranges from 23 to 40 °C. The Coulombic efficiency was 9.3% under the best operating conditions. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24697541 [article] Electricity generation from wastewater using an anaerobic fluidized bed microbial fuel cell [texte imprimé] / Weifang Kong, Auteur ; Qingjie Guo, Auteur ; Xuyun Wang, Auteur . - 2011 . - pp. 12225-12232. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 21 (Novembre 2011) . - pp. 12225-12232 Mots-clés : Fuel cell Fluidized bed Fluidization Anaerobe Waste water Résumé : The anaerobic fluidized bed microbial fuel cell (AFBMFC) was developed to generate electricity while simultaneously treating wastewater. During a complete cycle, the AFBMFC continuously generated electricity with a maximum power density of 1100 mW/m2 and removal of total chemical oxygen demand (COD) of 89%. To achieve this power density, the artificial electron-mediator neutral red (NR) was employed in the anode chamber. Granular biological electrodes, fluidization behavior, electron mediators, and temperature were evaluated to improve power production and wastewater treatment efficiency. The results showed that the maximum power density production of granule-graphite AFBMFC was 530 mW/m2, much higher than 410 mW/m2 using a granular activated carbon AFBMFC in the same reactor. Fluidization behaviors enhance the mass transfer and momentum transfer between activated carbon and wastewater. The power density increased with increasing methylene blue (MB) and NR concentration. Furthermore, power density reveals a slight increase as MB and NR concentrations exceed 0.5 and 1.7 mmol/L. The optimum temperature ranges from 23 to 40 °C. The Coulombic efficiency was 9.3% under the best operating conditions. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24697541

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