Effect of ammonium on the current generation in the microbial fuel cell

암모니아성 질소가 미생물연료전지에서 전류 발생에 미치는 영향

  • 장재경 (농촌진흥청 국립농업과학원) ;
  • 최정은 (농촌진흥청 국립농업과학원) ;
  • 유영선 (농촌진흥청 국립농업과학원) ;
  • 이성현 (농촌진흥청 국립농업과학원) ;
  • 김종구 (농촌진흥청 국립농업과학원) ;
  • 강연구 (농촌진흥청 국립농업과학원) ;
  • 김영화 (농촌진흥청 국립농업과학원) ;
  • 이형모 (농촌진흥청 국립농업과학원)
  • Published : 2011.05.26

Abstract

These studies carried out to know the effect of ammonium on the current generation in the microbial fuel cells (MFCs). MFCs used in the study were enriched with anaerobic digestion sludge and operated for 3 years using artificial wastewater (AWW). When the current was stably generated, ammonium ion with $27.0{\pm}0.0$, $51.5{\pm}0.0$, $103.5{\pm}0.0mg/L$ with acetate fed into the anode compartment. The current values under condition included ammonium were changed from its initial $6.30{\pm}0.06$ to $6.28{\pm}0.36$, $5.95{\pm}0.61$, $5.64{\pm}0.38mA$, respectively. The current value was slightly decreased to $5.64{\pm}0.38mA$ compared to $6.30{\pm}0.06mA$ generated from MFC without ammonium ion in the AWW. But After 3days operating under ammonium concentration with $103.5{\pm}0.0mg/L$, the current was unstably generated when artificial wastewater without ammonium was fed again. MFC enriched with AWW without ammonium ion was inhibited by high concentration of ammonium. At this time, the ammonium was removed 5.27~16.41 mg per day under all conditions.

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