Performance assessment of aeration and radial oxygen loss assisted cathode based integrated constructed wetland-microbial fuel cell systems

Pratiksha Srivastava, Saurabh Dwivedi, Naresh Kumar, Rouzbeh Abbassi, Vikram Garaniya, Asheesh Kumar Yadav

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The present study explores low-cost cathode development possibility using radial oxygen loss (ROL) of Canna indica plants and intermittent aeration (IA) for wastewater treatment and electricity generation in constructed wetland-microbial fuel cell (CW-MFC) system. Two CW-MFC microcosms were developed. Amongst them, one microcosm was planted with Canna indica plants for evaluating the ROL dependent cathode reaction (CW-MFC dependent on ROL) and another microcosm was equipped with intermittent aeration for evaluating the intermittent aeration dependent cathode reaction (CW-MFC with additional IA). The CW-MFC with additional IA has achieved 78.71% and 53.23%, and CW-MFC dependent on ROL has achieved 72.17% and 46.77% COD removal from synthetic wastewater containing glucose loads of 0.7 g L−1and 2.0 gL−1, respectively. The maximum power density of 31.04 mW m−3 and 19.60 mW m−3 was achieved in CW-MFC with additional IA and CW-MFC dependent on ROL, respectively.
Original languageEnglish
Pages (from-to)1178-1182
Number of pages5
JournalBioresource Technology
Volume244
Issue number1
DOIs
Publication statusPublished - Nov 2017
Externally publishedYes

Keywords

  • radial oxygen loss
  • constructed wetland-microbial fuel cell
  • intermittent aeration
  • cathode reaction
  • microbial fuel cell

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