Scalable continuous flow microbial fuel cells

A device for energy generation and wastewater treatment, comprising:

• a first modular microbial fuel cell (MFC) device operable to bioelectrochemically process wastewater that includes organic matter in a fluid that concurrently generates electrical energy and digests the organic matter to produce a treated water, the first modular MFC device comprises:
• a first housing, and
• a first bioelectrochemical reactor encased within the first housing, the first bioelectrochemical reactor including a plurality of anodes arranged between a cathode assembly, wherein the cathode assembly includes two gas-diffusion cathodes separated on two sides of the plurality of anodes and arranged longitudinally along a flow direction of the fluid through the first bioelectrochemical reactor, the gas-diffusion cathodes able to allow oxygen to permeate into the fluid within the first bioelectrochemical reactor;
• and
• a second modular MFC device fluidically coupled to the first modular MFC device and operable to bioelectrochemically process the treated water produced by the first modular MFC device to concurrently generate electrical energy and digest organic matter in fluid of the treated water to produce a further treated water, the second modular MFC device comprises:
• a second housing, and
• a second bioelectrochemical reactor encased within the second housing, the second bioelectrochemical reactor including a plurality of anodes arranged between a cathode assembly, wherein the cathode assembly includes two gas-diffusion cathodes separated on two sides of the plurality of anodes and arranged longitudinally along a flow direction of the fluid through the second bioelectrochemical reactor, the gas-diffusion cathodes able to allow oxygen to permeate into the fluid within the second bioelectrochemical reactor.