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Combination of a novel electrode material and artificial mediators to enhance power generation in an MFC

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Details

Original languageEnglish
Pages (from-to)320-328
Number of pages9
JournalWater Science and Technology
Volume71
Issue number3
DOIs
Publication statusPublished - 2015
Publication typeA1 Journal article-refereed

Abstract

This study focuses on two main aspects: developing a novel cost-effective electrode material and power production from domestic wastewater using three different mediators. Methylene blue (MB), neutral red (NR) and 2-hydroxy-1,4-naphthoquinone (HNQ) were selected as electrode mediators with different concentrations. A tin-coated copper mesh electrode was tested as anode electrode. Maximum power density of the microbial fuel cell (MFC) with 300 μM MB was 636 mW/m2. Optimal mediator concentrations with respect to the achieved maximum power output for MB, NR and HNQ were 300 μM, 200 μM and 50 μM, respectively. The results demonstrate that tin-coated copper mesh showed a higher biocompatibility and electrical conductivity.

Keywords

  • Internal resistance, Mediator, Microbial fuel cell, Power output

Publication forum classification

Field of science, Statistics Finland