Separation of competitive microorganisms using anaerobic membrane bioreactors as pretreatment to microbial electrochemical cells.
Bioresource Technology（2013）
Abstract
•Anaerobic membrane bioreactors (AnMBRs) used as pretreatment to MECs.•High current density (14.5A/m2) achieved from the MEC fed with AnMBR permeate.•Propionate fermentation rate limited current density in the MEC.•No methane was produced in the MEC due to membrane separation in the AnMBR.•Utilization of intracellular biopolymers resulted in CE above 100%.
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Key words
Anaerobic membrane bioreactor (AnMBR),Anode-respiring bacteria (ARB),Energy recovery,Microbial electrochemical cells (MECs)
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