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Increased power generation from primary sludge in microbial fuel cells coupled with prefermentation.
Bioprocess Biosyst Eng. 2014 Dec; 37(12):2549-57.BB

Abstract

Raw primary sludge and the prefermentation liquor (PL) of primary sludge were used to generate electricity in single-chambered air-cathode microbial fuel cells (MFCs). The MFCs treating the primary sludge produced 0.53 V and 370 mW/m(2) for the maximum potential and power density, respectively. In the primary sludge-fed MFCs, only 5 % of the total energy production was produced from direct electricity generation, whereas 95 % of that resulted from the conversion of methane to electricity. MFCs treating the PL generated the maximum potential of 0.58 V and maximum power density of 885 mW/m(2), respectively. In the energy production analysis, direct electricity production (1,921 Wh/kg TCODrem) in the MFCs treating the PL was much higher than that of the primary sludge-fed MFC (138 Wh/kg TCODrem). Volatile suspended solids during 10 days were reduced to 18.3 and 38 % in the primary sludge-fed MFCs and prefermentation reactor, respectively. These findings suggest that a two-stage process including prefermentation and MFCs is of great benefit on sludge reduction and higher electricity generation from primary sludge.

Authors+Show Affiliations

Department of Civil Engineering, Yeungnam University, Gyungsan, 712-749, South Korea.No affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24938995

Citation

Choi, Jeongdong, and Youngho Ahn. "Increased Power Generation From Primary Sludge in Microbial Fuel Cells Coupled With Prefermentation." Bioprocess and Biosystems Engineering, vol. 37, no. 12, 2014, pp. 2549-57.
Choi J, Ahn Y. Increased power generation from primary sludge in microbial fuel cells coupled with prefermentation. Bioprocess Biosyst Eng. 2014;37(12):2549-57.
Choi, J., & Ahn, Y. (2014). Increased power generation from primary sludge in microbial fuel cells coupled with prefermentation. Bioprocess and Biosystems Engineering, 37(12), 2549-57. https://doi.org/10.1007/s00449-014-1232-3
Choi J, Ahn Y. Increased Power Generation From Primary Sludge in Microbial Fuel Cells Coupled With Prefermentation. Bioprocess Biosyst Eng. 2014;37(12):2549-57. PubMed PMID: 24938995.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Increased power generation from primary sludge in microbial fuel cells coupled with prefermentation. AU - Choi,Jeongdong, AU - Ahn,Youngho, Y1 - 2014/06/19/ PY - 2014/01/16/received PY - 2014/06/02/accepted PY - 2014/6/19/entrez PY - 2014/6/19/pubmed PY - 2015/7/29/medline SP - 2549 EP - 57 JF - Bioprocess and biosystems engineering JO - Bioprocess Biosyst Eng VL - 37 IS - 12 N2 - Raw primary sludge and the prefermentation liquor (PL) of primary sludge were used to generate electricity in single-chambered air-cathode microbial fuel cells (MFCs). The MFCs treating the primary sludge produced 0.53 V and 370 mW/m(2) for the maximum potential and power density, respectively. In the primary sludge-fed MFCs, only 5 % of the total energy production was produced from direct electricity generation, whereas 95 % of that resulted from the conversion of methane to electricity. MFCs treating the PL generated the maximum potential of 0.58 V and maximum power density of 885 mW/m(2), respectively. In the energy production analysis, direct electricity production (1,921 Wh/kg TCODrem) in the MFCs treating the PL was much higher than that of the primary sludge-fed MFC (138 Wh/kg TCODrem). Volatile suspended solids during 10 days were reduced to 18.3 and 38 % in the primary sludge-fed MFCs and prefermentation reactor, respectively. These findings suggest that a two-stage process including prefermentation and MFCs is of great benefit on sludge reduction and higher electricity generation from primary sludge. SN - 1615-7605 UR - https://www.unboundmedicine.com/medline/citation/24938995/Increased_power_generation_from_primary_sludge_in_microbial_fuel_cells_coupled_with_prefermentation_ L2 - https://dx.doi.org/10.1007/s00449-014-1232-3 DB - PRIME DP - Unbound Medicine ER -