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Sampling location of the inoculum is crucial in designing anodes for microbial fuel cells

Paper ID Volume ID Publish Year Pages File Format Full-Text
3357 165 2013 5 PDF Available
Title
Sampling location of the inoculum is crucial in designing anodes for microbial fuel cells
Abstract

A Kraft pulp mill effluent was used as the inoculum to form microbial bioanodes under controlled potential at +0.4 V/SCE. Samples were collected at the inlet and outlet of the aerated lagoon of the treatment line. The outlet sample allowed efficient bioanodes to be designed (5.1 A/m2), which included Geobacter and Desulfuromonas sp. in their microbial community. In contrast, the bioanodes formed with the inlet sample did not contain directly connecting anode-respiring bacteria and led to lower currents. It was necessary to re-form this bioanode at lower applied potential (−0.2 V/SCE) to select more efficient electroactive species and increase the current density to 5 A/m2.

► Microbial anodes formed from pulp and paper effluents. ► Efficiency and microbial composition of the anodes depend on the inoculum location. ► Predominant species Desulfuromonas acetexigens was detected by DGGE.

Keywords
Microbial fuel cell (MFC); Waste-water treatment; Pulp mill effluent; Bioanode; Inoculum
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 73, 15 April 2013, Pages 12–16
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
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Full-text PDF Download
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Any Questions? feel free to contact us