ABSTRACT
The design or physical configuration of a bio-electrochemical system determines the location and the position of every component of the biofuel cell. The application of electrochemically assisted constructed wetlands in rural areas would supply the power needs and the wastewater treatment, and would also contribute with huge benefits in urban areas for the power supply from the wastewater depuration. Although, urban areas can count on electricity supply, using these bioelectrochemical systems in public gardens and green roofs could lead to great benefits. The microbial fuel cells with living hydrophytes or vegetal organisms include a bioelectrochemical system that generates power based on the principles of a galvanic electrochemical cell: two electrochemical half-reactions take place involving electric charge transference, an oxidation and a reduction reaction. The vegetal species for bio-electrochemical systems with living hydrophytes should have particular features among them. The microbial fuel cells with living hydrophytes uses the subsurface biomass of a living plant in order to produce electricity.
