Advances in microbial fuel cells for wastewater treatment

Resource shortage and power demand increased dramatically. Wastewater is considered to be one of the resources for water, energy, and plant fertilization. However, the current wastewater treatment technology has limitations mainly due to their energy and cost intensive to achieve the purpose of wastewater recovery. It is expected to develop new technologies to create alternatives to traditional energy sources in a sustainable way. Innovative technologies based on microbial fuel cells (MFC) are an important way to generate electricity during biotransformation, followed by energy and environmental problems. Compared with the prior art, MFC has three special functions including energy saving, reduction of sludge generation and reduction of energy production. Various forms of wastewater can be effectively degraded by promoting the MFC alone or by integrating the MFC with other processing units. However, the low power density and high operating cost of MFCs severely limits their application to large-scale problems, so some controversy and doubts about their development and applications are occurring. Therefore, this paper objectively discussed the problem and application of MFC in wastewater treatment. Furthermore, to verify the practicality and effectiveness of MFC in the removal of pollutants, the integration of MFC and other processing processes was introduced. We also analyzed the main challenges and opportunities for MFC expansion in wastewater and future applications.

Microbial fuel cells (MFCs) are becoming promising technologies for treating wastewater. Please check the potential energy conversion efficiency. Review and evaluation of energy recovery (W / m 3 reactor) Several data related to potato treatment wastewater and hospital wastewater have recently been reported. Finally, we model a series of process configurations that MFC can use to process wastewater. Overall, MFC technology is still facing major challenges, especially in terms of chemical oxygen demand (COD) removal efficiency.

Abstract: Microbial fuel cell (MFC) recently achieved active energy wastewater treatment at the pilot stage. Despite these achievements, whether all wastewater contains enough energy, and if so, MFC can capture sufficient energy to offset the electrical energy requirements of the wastewater treatment process There is still limited understanding as to whether or not. Currently, there is no tool or method available to determine whether MFC can be a priori energy neutral. In order to solve this problem, we derive a simple relationship by setting the electric energy demand of the wastewater treatment facility equal to the net energy production of MFC and the resulting formula is the minimum chemistry required to achieve energy Represents oxygen demand (COD) removal. - Neutral treatment. The resulting equation is simply a function of electrical energy requirements, coulombic efficiency, and battery voltage.

Minimum performance requirement of microbial fuel cell to achieve energy neutral wastewater treatment