| 发明名称 |
FILTRO DE CONTACTO ACCIONADO A AR |
| 摘要 |
<p>An air-driven contact filter for biological cleaning of waste water has spiral wound channels with an axis placed below the surface of the water. Air is blown into the center and water is displaced so that the channels will rotate.</p> |
| 申请公布号 |
PT84940(B) |
申请公布日期 |
1993.09.30 |
| 申请号 |
PT19870084940 |
申请日期 |
1987.05.25 |
| 申请人 |
AKSEL SONDERGARD FRANDSEN |
发明人 |
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| 分类号 |
C02F3/08;(IPC1-7):C02F3/08 |
主分类号 |
C02F3/08 |
| 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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