Based On The Biochemical Interactions Of Microbial Fuel Cell To Synchronize The Two Wastewater Technology

Microbial fuel cell (Microbial Fuel Cell, referred to as MFC) can make use of the microbial oxidation of organic compounds as a catalyst decomposition to produce a current at the same time, the organic matter in the chemical energy directly into electrical energy, is a new wastewater treatment technology, having a wide range of raw materials, mild reaction conditions, clean and efficient, no energy, etc.. Molasses wastewater concentration, high organic content, can be used as the the MFC anode electron donor, and heavy metal ions in electroplating wastewater with strong oxidizing and high redox potential and other characteristics, so it has the possibility of as the cathode electron acceptor. Therefore, this study on the use of molasses wastewater as the MFC anode containing heavy metal ions from wastewater as a cathode investigated cell performance and the effect of sewage treatment, which is the practical application of important scientific value and practical significance.In this study, two-bedroom microbial fuel cell device for the study, the use of anaerobic microorganisms as the anode biocatalyst, brown sugar, dubbed synthetic wastewater as anolyte and experimental analysis of simulated electroplating wastewater using self-made single metal ions in order to facilitate research. First analog molasses wastewater and molasses wastewater as the the MFC anode of the electron donor, it is determined to establish the feasibility of MFC, but due to the actual molasses wastewater impurities affect the performance of the MFC, so after two experiments using simulated molasses wastewater as an anode fluid. In order to further determine the impact of the heavy metal cathode liquid electrical properties of MFC, the cathode liquid silver ion, copper ion solution as the MFC cathode liquid. Silver ions as the cathode solution, the choice of three different concentrations (500mg·L-1;1000mg·L-1;2000mg·L-1) study,The results showed that:Ag+not only can be used as the anode electron acceptor, but also stable production, external resistance of1000ohms for maximum voltage514.5mV, the maximum power density of65.82mW·m-2. Wastewater Ag+removal, the removal rate of up to71.6%, and the Ag+concentration of2000mg·L-1in the cathode, the recovery of metallic silver elemental mass of197.66g. The anode wastewater treatment effect is very significant, coulombic efficiency of maximum2.66%, COD removal rate up to81.22%.Copper ions as a cathode solution, only the performance of a single concentration of MFC. The results showed that the outer resistance of800ohms, the maximum voltage battery417.00mV, Cu2+maximum removal rate of59.76%.Studies have shown that the MFC chemical organic wastewater can be directly converted into electrical energy, while heavy metal restore access to both energy while organic wastewater treatment and electroplating wastewater with significant environmental and economic benefits.