发明名称 |
METHOD OF IMPROVING FLASHBACK PROCESS OF SOLID FILTER BED COMPOSED OF GRANULAR SUBSTANCE |
摘要 |
A method of improving the operation of backwashable fixed beds formed of granular materials and used during purification of waste water of sewage or during water treatment, wherein the fixed bed is conditioned during a last step of the backwashing operation by filling the fixed bed with a liquid for a predetermined time duration. The liquid contains distributed as uniformly as possible therein at least one substance which in the presence of a catalytically triggered decomposition reaction gives off a gaseous component and thereafter the liquid to be treated is filtered. |
申请公布号 |
JPS52115556(A) |
申请公布日期 |
1977.09.28 |
申请号 |
JP19770023266 |
申请日期 |
1977.03.03 |
申请人 |
SULZER AG |
发明人 |
IFUAN SEKOUROFU;UORUFU RIYUDEIGAA MIYURAA |
分类号 |
C02F3/06;B01D24/02;B01D24/46;B01D29/46;B01D29/62;B01D29/66;B01J49/00;C02F1/28;C02F1/42;C02F1/72;C02F3/02;C02F3/34;C02F9/00 |
主分类号 |
C02F3/06 |
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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