发明名称 |
FIXING CARRIER FOR ACTIVATED SLUDGE IN SEWAGE OR WASTE WATER TREATMENT |
摘要 |
<p>A fixing carrier (1(b)) for fixing an activated sludge employed in a sewage or waste-water treatment, is characterized in that: 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 DEG 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 DEG C is about one hour.</p> |
申请公布号 |
EP0260695(A3) |
申请公布日期 |
1989.06.14 |
申请号 |
EP19870113622 |
申请日期 |
1987.09.17 |
申请人 |
NIPPON STEEL CORPORATION;IWAO JIKI KOGYO CO., LTD. |
发明人 |
FUJII, MASAHIRO R & D LABORATORIES-III;MIKI, OSAMU R & D LABORATORIES-III;MURONAGA, TAKEHISA;FUJII, TAKAHARU |
分类号 |
B01J19/30;C02F3/10;C04B38/02;C04B38/06;(IPC1-7):C02F3/10;C02F3/12;C04B38/00 |
主分类号 |
B01J19/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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