发明名称 |
Method for biological purification of liquids and biological filter for purification of liquids |
摘要 |
A biological filter for purification of liquids has primary filtering stages (52a, 52b, 52c) of a particulate material and secondary filtering stages (54, 56, 58) containing a fine-fiber material. The particulate material and fine-fiber material are covered with a biofloc film. The primary filtering stages (52a, 52b, 52c) and the secondary filtering stages (54, 56, 58) form a succession of filtering groups, and liquid is caused to move through the succession of filtering groups. Liquid is aerated during movement through the succession of filtering groups.
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申请公布号 |
US5853578(A) |
申请公布日期 |
1998.12.29 |
申请号 |
US19960677848 |
申请日期 |
1996.07.10 |
申请人 |
FLYAKS, NINA;SHKOLNIK, ALEXANDER |
发明人 |
FLYAKS, NINA;SHKOLNIK, ALEXANDER |
分类号 |
C02F3/06;C02F3/10;C02F3/22;C02F3/32;(IPC1-7):B01D24/02 |
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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