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Aerobic granular sludge was cultivated in a microbial fuel cell, achieving high removal efficiency of pollutants and power generation.

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What they did

System
MFC
Substrate
pure compound

What worked

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Abstract

Aerobic granular sludge(AGS) is a special biofilm formed by the self-aggregation of sludge material. In this study, AGS was cultivated in the biocathode of a continuous flow microbial fuel cell (MFC). During the formation of AGS, changes in sludge concentration, extracellular polymers (EPS), pollutants removal and power generation were examined. The results showed that, MLVSS kept above 5 g/L, the PS, PN and PN/PS of TB-EPS showed a gradually increasing trend, the removal efficiency of COD and ammonia nitrogen was 94.46% and 93.03%, respectively. A maximum voltage output of 350 mV was achieved.

Key findings

  • MLVSS kept above 5 g/L
  • TB-EPS showed a gradually increasing trend in PS, PN, and PN/PS
  • Maximum voltage output of 350 mV was achieved

Keywords

Microbial fuel cellExtracellular polymeric substanceBiofilmAmmoniaPulp and paper industryPollutant

Identifiers

DOI
10.1051/e3sconf/202016701007
Journal
E3S Web of Conferences
Year
2019