| 摘要 |
PROBLEM TO BE SOLVED: To reliably and easily resist, remove and sterilize bacteria of water by mixing zeolite and powder of a shell and the like in the weight ratio, and also adding and mixing respective fine powders of a ferric oxide, a potassium oxide and a magnesium oxide in the weight ratio. SOLUTION: Natural zeolite is pulverized to about 10 mm, and a temperature is raised up to 60 deg.C by a rotary kiln, and it is heated and baked for about one hour, and is pulverized to the grain size of about 5 microns. Next, a shell and the like is heated and baked for 40 minutes by holding a material temperature of 1000 deg.C by the rotary kiln, and is pulverized to the grain size of about 5 microns. Powder : 55% of the zeolite and powder : 45% of the shell are mixed together in the weight ratio. Ferric oxide fine powder : 2%, potassium oxide fine powder : 1% and magnesium oxide fine powder : 1% are also added and mixed together in the weight ratio. Next, it is molded into a spherical shape of about 8 mm from an organic binder by a rotary drum, and is dried until moisture of its molded spherical shape becomes 8% or less. Baking processing is also performed up to about 200 deg.C to 500 deg.C for 3 hours and at about 1000 deg.C for about 60 hours thereafter by an electric furnace. |
