TECHNOLOGY FOCUS - BIOLOGY - Preparation (Claimed): Culturing (I) comprises providing rich phosphorus culture solution into an underbrush sequencing batch reactor, inoculating sludge in the sewage treatment factory into the rich phosphorus culture solution at 8-12 degrees C, continuously culturing for 20 days, running 6 hours cycle of operation, anaerobic stirring for 2.5 hours, aerobic for 2.5 hours, standing for 0.5 hours, removing supernate and supplementing new rich phosphorus culture solution for 0.5 hours, keeping the 3000 mg/l concentration of sludge, taking 10 ml obtained sludge, adding into 250 ml conical flask with 90 ml sterilization distilled water and 20-30 grains of sterilizing glass ball, oscillating for 10-30 minutes, making the bacterial cell fully release in the supernate, standing for 20-40 minutes, taking 1 ml of supernate to be added into 9 ml of sterile distilled water test tube to obtain 10-2 bacterial suspension, serially diluting according to the method to 10-8 bacterial suspension, selecting the bacterial suspension with 10-5-10-8 gradient, respectively taking 1 ml to inoculate into rich phosphorus to inoculate into rich phosphorus culture solution, each dilution having three parallel samples, numbering, moisturizing and culturing 2-3 weeks at 10 degrees C in the aerobic condition, selecting big bacterial colony and single colony with different shapes from the plate of rich phosphorus culture solution, marking off and separating on the plate of rich phosphorus culture solution, repeating the marking off and separating on the plate for 3-4 times and making bacterial colony on the plate having the same shape n microscope, single colony with similar size. Preferred Process: The process comprises adding distilled water to 1000 ml, regulating the pH value to 7.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The rich phosphorus culture solution is composed of 3.32 g of sodium acetate trihydrate, 43.75 mg of potassium di-hydrogen phosphate, 5.68 mg of calcium chloride dihydrate, 485.94 mg of potassium nitrate, 91.26 mg of magnesium sulfate heptahydrate, 5 ml of Tris buffer liquid, 2 ml of trace elements and 20 of ml agar. The trace elements comprises 5 g of EDTA, 5 g of ferrous sulfate heptahydrate, 1.6 g of copper sulfate pentahydrate, 5 g of manganese(II) chloride tetrahydride, 50 mg of ammonium molybdate tetrahydrate, 50 mg of boric acid, 10 mg of potassium iodide and 50 mg of cobalt chloride hexahydrate.