Liquid purification or separation – Filter – Material
Patent
1988-07-29
1989-03-21
Wyse, Tom
Liquid purification or separation
Filter
Material
261 94, 501 83, 501 84, 210150, C02F 310
Patent
active
048140856
ABSTRACT:
A fixing carrier for fixing an activated sludge employed in a sewage or waste-water treatment in which:
a clay, containing kaolinite minerals, of from 10 to 40 parts by weight and a foaming agent of from 5 to 20 parts by weight are blended with a granulated blast furnace slag of from 60 to 90 parts by weight in the presence of water to prepare a wet mixture which is kneaded and shaped into a shaped mixture; and
said shaped mixture is baked at a baking temperature of less than 950.degree. C. at maximum, with the proviso that each of a heat-up time required of said shaped mixture to reach said baking temperature for producing a baked product and a heat-down time required of said baked product to reach a temperature of up to 100.degree. C. is about one hour.
REFERENCES:
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patent: 4162166 (1979-07-01), Wells-Muycelo
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patent: 4261938 (1981-04-01), Engstrom et al.
patent: 4274966 (1981-06-01), Palmer
patent: 4560478 (1985-12-01), Narumiya
patent: 4678758 (1987-07-01), Kampfer et al.
patent: 4758538 (1988-07-01), Satoh et al.
Fujii Masahiro
Fujii Takaharu
Miki Osamu
Muronaga Takehisa
Iwao Jiki Kogyo Co., Ltd.
Nippon Steel Corporation
Wyse Tom
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