TECHNOLOGY FOCUS - ENVIRONMENT - Preferred Compositions: Bioactive material contains 7-15 pts. wt. activated sludge extract and 1-5 pts. wt. of 105-107 cfu/ml Burkholderia nocardia bacterial suspension in which 2-15 pts. wt. activated sludge extract is mixed with 30-45 pts. wt. water in rotary shaker under 100-300 rpm rotating speed for 3-5 minutes. Biomembrane activity is 3-5 blocks, each block has biomembrane activity area of 0.5-1 m2, domestic sewage is flowed through biomembrane activity which has sped of 0.1-0.5 m/minute at 40-50 degrees C. Preferred Processes: Biomembrane activity is obtained by mixing agarose, sodium alginate, and polyethylene peptide amine, adding 1.5-2 times water, heating at 80-90 degrees C, dissolving in water to prepare melting glue, melting glue in container side and base layer, cooling at less than or equal to 70 degrees C, adding amino silicone ball, immersing melting glue into base layer, solidifying sol, removing surface coating and activated sludge extract, placing in dry environment at 20-30 degrees C for 30-50 minutes, coating B. nocardia bacterial suspension bacterial suspension into sol surface, and placing in environment at 30-35 degrees C for 2-5 hours. Biomembrane activity is horizontally or vertically set on biofilm filtering room bottom which is provided with water inlet in which biomembrane activity from water inlet to bottom has vertical distance of 0.5-1 m, biomembrane activity is filtered, and filtrate is flowed though water outlet. Biofilm filtering room is connected with oxidation room which is filled with oxygen, and inner wall is provided with convex surface. Hydrolysis is performed by using aeration and aerobic activated slurry in decomposing domestic sewage of water insoluble macromolecular organic pollutant and water soluble small molecular substance, acidifying is performed by using anaerobic acid-forming microorganism which is filled in sealed environment of carbon dioxide (CO2) gas, and carbohydrate is put in domestic sewage into organic acid at 40-60 degrees C until pH is dropped to 2.1-3.4. Methane fermentation is performed by using microorganism which is filled in sealed environment of CO2 gas at 30-50 degrees C, and 10 m3 methane is fermented for 36-50 hours.    TECHNOLOGY FOCUS - POLYMERS - Preferred Compositions: Biomembrane activity contains brush-like polycarbonate base layer, degradable layer, and composite layer in which raw material of degradable layer is 40-70 pts. wt. agarose, 5-25 pts. wt. amino silicone ball, 10-15 pts. wt. sodium alginate, 1-5 pts. wt. polyethylene peptide amine, and 8-20 pts. wt. bioactive material.