NOVELTY - A proton-free exchange membrane microbiological fuel cell sewage treatment system comprises electrode, electrode chamber, magnetic force stirrer, external resistor and peristaltic pump. The conductive material is used as electrode, where electrode is arranged on electrode chamber. The electrode is used for removing reducing organic pollutant of microorganism attachment film forming anode, and removing nitrogen-containing pollutant of microorganism attachment film forming cathode without proton exchange membrane into anode chamber and cathode chamber.    USE - Proton-free exchange membrane microbiological fuel cell sewage treatment system.    ADVANTAGE - The sewage treatment system effectively removes sewage in reducing organic contaminants and nitrogen-containing pollutant. It promotes cathode microbial removing oxidative pollutant on proton exchange membrane fuel battery anode and cathode.    DETAILED DESCRIPTION - Proton-free exchange membrane microbiological fuel cell sewage treatment system comprises electrode, electrode chamber, magnetic force stirrer, external resistor and peristaltic pump. The conductive material is used as electrode, where electrode is arranged on electrode chamber. The electrode is used for removing reducing organic pollutant of microorganism attachment film forming anode, and removing nitrogen-containing pollutant of microorganism attachment film forming cathode without proton exchange membrane into anode chamber and cathode chamber. The two electrodes are connected to the resistor to form loop and promotion system in liquid flow by stirring to action of magnetic force stirrer reinforcing mass transfer process. An INDEPENDENT CLAIM is included for a method for removing and reducing nitrogen-containing pollutant from sewage of microbiological fuel cell which comprises establishing the non-proton exchange membrane fuel cell sewage treatment system; (B) respectively preparing removing reducing organic pollutant microorganism culture medium and removing nitrogen-containing pollutant microorganism culture medium; (C) performing sewage treatment plant sedimentation or denitrification; (D) inoculating and acclimatizing the microorganism suspension to a non-proton exchange film; (E) processing liquid and promoting mass transfer process; and (F) using meter measuring battery open circuit voltage of two ends, processed effluent water reducing organic material, ammonia nitrogen, nitrite nitrogen and nitrate nitrogen for intensively removing nitrogen from sewage treatment effect, where reducing organic material has chemical oxygen demand content. The formulation of removing reducing organic pollutant microorganism culture medium comprises (mg/L) ammonium sulfate ((NH4)2SO4) (30), potassium sulfate (KH2PO4) (30), potassium carbonate (KHCO3) (500), magnesium sulfate (MgSO4) (200), ferric chloride (FeCl3) (100), calcium chloride (CaCl2) (30), glucose (C6H12O6) (500), and sodium nitrate (NaNO3) (40). The formulation of removing nitrogen pollutant microorganism culture medium comprises (mg/L): (NH4)2SO4 (60), KH2PO4 (30), KHCO3 (500), MgSO4 (200), FeCl3 (100), CaCl2 (30), C6H1206 (200), and NaNO3 (200). Each liter of culture medium is added with microelement (1-2 mL). The trace element solution comprises (g/L): EDTA (50), zinc sulfate (ZnSO4) (2.2), calcium chloride (CaCl2) (5.5), magnesium chloride tetrahydrate (MnCl2-4H2O) (5.06), ferrous sulfate heptahydrate (FeSO4-7H2O) (5), ammonium molybdate tetrahydrate ((NH4)6Mo7O2-4H2O) (1.1), copper sulfate pentahydrate (CuSO4.5H2O) (1.57), and cobalt chloride hexahydrate (CoCl2-6H2O) (1.61). The step (C) includes respectively removing reducing organic pollutant and domestication nitrogen-containing pollutants by microorganism, culturing, and controlling the pH value of culture solution at 6.5-7.5. When concentration of microorganism is 3000-4000 mg/L, and culture solution C6H12O6 and NaNO3 removal rate is stable, it shows microbial domestication. The step (D) includes inoculating and acclimatizing microorganism suspension to non-proton exchange film, where inoculation quantity is 20% of 30% volume. The pH of sewage is adjusted to 7 plus minus 0.2. The step (E) includes adding phosphoric acid buffer solution whose pH value is 7, where amount of added phosphoric acid buffer solution is 10% of total volume; and stirring enhancement system of thionizer to intensify inner circulation processing liquid to promote mass transfer process.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram illustrating a proton-free exchange membrane microbiological fuel cell sewage treatment system.