Effectiveness of domestic wastewater treatment using microbial fuel cells at ambient and mesophilic temperatures

Youngho Ahn, Bruce Ernest Logan

Research output: Contribution to journalArticle

228 Citations (Scopus)

Abstract

Domestic wastewater treatment was examined under two different temperature (23 ± 3 °C and 30 ± 1 °C) and flow modes (fed-batch and continuous) using single-chamber air-cathode microbial fuel cells (MFCs). Temperature was an important parameter for treatment efficiency and power generation. The highest power density of 422 mW/m2 (12.8 W/m3) was achieved under continuous flow and mesophilic conditions, at an organic loading rate of 54 g COD/L-d, achieving 25.8% COD removal. Energy recovery was found to depend significantly on the operational conditions (flow mode, temperature, organic loading rate, and HRT) as well as the reactor architecture. The results demonstrate that the main advantages of using temperature-phased, in-series MFC configurations for domestic wastewater treatment are power savings, low solids production, and higher treatment efficiency.

Original languageEnglish (US)
Pages (from-to)469-475
Number of pages7
JournalBioresource technology
Volume101
Issue number2
DOIs
StatePublished - Jan 1 2010

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Microbial fuel cells
fuel cell
Wastewater treatment
temperature
Temperature
power generation
Power generation
savings
Cathodes
Recovery
wastewater treatment
air
Air
rate

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this

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abstract = "Domestic wastewater treatment was examined under two different temperature (23 ± 3 °C and 30 ± 1 °C) and flow modes (fed-batch and continuous) using single-chamber air-cathode microbial fuel cells (MFCs). Temperature was an important parameter for treatment efficiency and power generation. The highest power density of 422 mW/m2 (12.8 W/m3) was achieved under continuous flow and mesophilic conditions, at an organic loading rate of 54 g COD/L-d, achieving 25.8{\%} COD removal. Energy recovery was found to depend significantly on the operational conditions (flow mode, temperature, organic loading rate, and HRT) as well as the reactor architecture. The results demonstrate that the main advantages of using temperature-phased, in-series MFC configurations for domestic wastewater treatment are power savings, low solids production, and higher treatment efficiency.",
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Effectiveness of domestic wastewater treatment using microbial fuel cells at ambient and mesophilic temperatures. / Ahn, Youngho; Logan, Bruce Ernest.

In: Bioresource technology, Vol. 101, No. 2, 01.01.2010, p. 469-475.

Research output: Contribution to journalArticle

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