Chinese Journal of Chemical Engineering ›› 2020, Vol. 28 ›› Issue (3): 846-853.doi: 10.1016/j.cjche.2019.10.002

• Energy, Resources and Environmental Technology • Previous Articles     Next Articles

Performance of anaerobic fluidized bed microbial fuel cell with different porous anodes

Xiuli Zhang1,2, Chunhu Li1, Qingjie Guo2, Kelei Huang1   

  1. 1 Key Laboratory of Marine Chemistry Theory and Engineering Technology of Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China;
    2 Key Laboratory of Clean Chemical Processing of Shandong Province, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  • Received:2019-03-19 Revised:2019-09-25 Online:2020-03-28 Published:2020-06-11
  • Contact: Chunhu Li, Qingjie Guo;
  • Supported by:
    The authors gratefully acknowledge the support from the National Key R&D program (2018YFB06050401), Key R&D program of the Ningxia Hui Autonomous Region (2018BCE01002), National Natural Science Foundation of China (21868025), and the Key Research & Development Program of Shandong Province (2018GGX104013).

Abstract: Anode materials were used to construct microbial fuel cells (MFCs), and the characteristics of the anodes were important for successful applied performance of the MFCs. Via the cyclic voltammetry (CV) method, the experiments showed that 5 wt% multiwalled carbon nanotubes (MWNTs) were optimal for the PANI/MWNT film anodes prepared using 24 polymerization cycles. The maximum output voltage of the PANI/MWNT film anodes reached 967.7 mV with a power density of 286.63 mW·m-2. Stable output voltages of 860 mV, 850 mV, and 870 mV were achieved when the anaerobic fluidized bed microbial fuel cell (AFBMFC) anodes consisted of carbon cloth with carbon black on one side, copper foam and carbon brushes, respectively. Pretreatment of the anodes before starting the AFBMFC by immersion in a stirred bacterial fluid significantly shortened the AFBMFC startup time. After the AFBMFC was continuously run, the anode surfaces generated active microbial catalytic material.

Key words: Circulating fluidized bed, Multiphase flow, Porous anodes, Anode modification, Electrochemistry