A submersible microbial fuel cell (SMFC) was utilized to treatment of sewage sludge and simultaneous generate electricity. Stable power generation (145±5 mW/m2) was produced continuously from raw sewage sludge for 5.5 days. The corresponding total chemical oxygen demand (TCOD) removal efficiency was 78.1±0.2% with initial TCOD of 49.7 g/L. The power generation of SMFC was depended on the sludge concentration. The maximum power density generated from raw sludge reached 190±5 mW/m2. Dilution of the raw sludge resulted in higher power density. The power density was saturated at sludge concentration 17 g-TCOD/L, where maximum power density of 290 mW/m2 was achieved. When effluents from an anaerobic digester were used as substrate in the SMFC a maximum power density of 318 mW/m2, and a final TCOD removal of 71.9±0.2% was achieved. These results have practical implications for development of an effective system to treatment of sewage sludge and simultaneous recover energy.
|Title of host publication||The 12th World Congress on Anaerobic Digestion (AD12). Water Science and Technology : CD-ROM|
|Publisher||IWA - International Water Association|
|Publication status||Published - 2010|
|Event||12th World Congress on Anaerobic Digestion - Guadalajara, Mexico|
Duration: 31 Oct 2010 → 4 Nov 2010
Conference number: 12
|Conference||12th World Congress on Anaerobic Digestion|
|Period||31/10/2010 → 04/11/2010|
- Sewage sludge
- TCOD removal efficiency
- Submersible microbial fuel cell
- Anaerobic digestion
- Electricity generation
Zhang, Y., Olias, L. G., Kongjan, P., & Angelidaki, I. (2010). Submersible microbial fuel cell for electricity production from sewage sludge. In The 12th World Congress on Anaerobic Digestion (AD12). Water Science and Technology: CD-ROM IWA - International Water Association.