Abstract: A device for mixing and aerating a body of water, the device includes a microbial fuel cell comprising an anode and a cathode; an electricity management subsystem electrically connecting the anode and the cathode; and a mixing subsystem electrically connected to the electricity management subsystem. The device can be used to mix or aerate a body of water containing organic material while simultaneously reducing the requirements for aeration. The body of water may provide organic material to the microbial fuel cell to produce electricity to power the mixing subsystem.

Abstract: A device for mixing and aerating a body of water, the device includes a microbial fuel cell comprising an anode and a cathode; an electricity management subsystem electrically connecting the anode and the cathode; and a mixing subsystem electrically connected to the electricity management subsystem. The device can be used to mix or aerate a body of water containing organic material while simultaneously reducing the requirements for aeration. The body of water may provide organic material to the microbial fuel cell to produce electricity to power the mixing subsystem.

Abstract: A continuous system for growing algae, processing it and converting it into electricity, fuel and animal feed. The system utilizes an algae bioreactor which feeds harvested algae to a biomass extraction system which in turn directs a portion of the harvested algae to a microbial generator. The microbial generator converts the algae into electricity, water and nutrients. The biomass extraction system includes a dewatering device and a biomass dryer. The microbial generator in a preferred embodiment is a microbial fuel cell. Dry algae product used for animal feed, fuel, and the like is obtained from the output of the biomass dryer.