TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The reductive pollutant in the anode chamber is nitrate pollution and/or heavy metal chromium VI pollution. The inorganic salt in the water comprises 130 mg/l of potassium chloride, 310 mg/l of ammonium chloride, 6517 mg/l of dipotassium phosphate and 2883 mg/l of potassium dihydrogen phosphate. The micro-element in water comprises 1.25 mg/l of calcium chloride dehydrate, 0.125 mg/l of copper(II) sulfate pentahydrate, 1.25 mg/l of ferrous sulfate heptahydrate, 0.125 mg/l of boric acid, 18.75 mg/l of nitrilotriacetic acid, 6.25 mg/l of magnesium sulfate monohydrate, 0.3125 mg/l of sodium molybdate, 0.3 mg/l of nickel (II) chloride hexahydrate, 0.3125 mg/l of sodium tungstate dihydrate, 1.625 mg/l of zinc chloride, 0.125 mg/l of aluminum potassium sulfate dodecahydrate, 1.25 mg/l of cobalt (II) chloride hexahydrate and 12.5 mg/l of sodium chloride. The anode material comprises carbon cloth, carbon paper, carbon nanometer pipe and graphite. The cathode material comprises catalyst platinum modified carbon cloth, carbon paper and graphite.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method comprises adding distilled water to the sludge sample of the anaerobic section of the oxidation ditch of the sewage treatment plant in a mass ratio of 1:10 of sludge to water, putting the sludge water into a closed anaerobic reactor, adding oxidized pollutant with 100 mg/l of phenol or 50 mg/l of trichloroethylene, adding the mixed mixture with 100 mg/l of carbon source glucose or 1000 mg/l of sodium acetate, adding the mixture with growth medium of water, and oscillating the sludge using a water bath oscillator at 10-30 degrees C to uniformly mix the sludge water with a nutrient substance till changing the sludge into dark brown, where the growth medium is inorganic salt, vitamin and micro-element. The step of oxidizing and degrading comprises putting the anode material into the sludge on the ground to form anaerobic microbial film on the anode material, putting the anode material in the underground anode chamber, filling a pre-cultured flora to the anode chamber, and forming film at the anode through running for certain time. Preferred Components: The oxidized pollutant in the cathode chamber is phenol, benzene and/or trichloroethylene pollutant. The vitamin in water comprises 25x 10-3 mg/l of vitamin B5, 10x 10-3 mg/l of vitamin H, 50x 10-3 mg/l of vitamin B6, 25x 10-3 mg/l of nicotinic acid, 10x 10-3 mg/l of folic acid, 25x 10-3 mg/l of riboflavin, 0.5x 10-3 mg/l of vitamin B-12, 25x 10-3 mg/l of vitamin B1, 25x 10-3 mg/l of Para amino benzoic acid and 25x 10-3 mg/l of lipoic acid.