发明名称 |
METHOD AND APPARATUS FOR DISSOLVED AIR FLOATATION SELECTION AND RELATED WASTE WATER TREATMENT |
摘要 |
A dissolved air flotation (DAF) system and method for gas-liquid contacting operations. A mixture of untreated liquid and liquid saturated with dissolved air is passed through a series of upward deflecting screens placed across the flowpath in a rectangular tank. Microbubbles of air released from the mixture produce a buoyant force which carries contacted particles to the surface. Floated particles released from the microbubbles form a sludge which is supported above the surface of the mixture by a layer of air derived from the microbubbles. A top layer of the sludge is skimmed off according to a predetermined residence time of sludge at the surface. Liquid containing dissolved air is also introduced downstream of each deflecting screen to enhance flotation and clarification. |
申请公布号 |
JPH08267052(A) |
申请公布日期 |
1996.10.15 |
申请号 |
JP19960080949 |
申请日期 |
1996.03.07 |
申请人 |
SAAMODAIN CORP |
发明人 |
JIYOOJI SHII IEE |
分类号 |
B01D21/00;B03D1/14;B03D1/24;C02F1/24;(IPC1-7):C02F1/24 |
主分类号 |
B01D21/00 |
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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