发明名称 |
METHOD OF CLARIFYING A SOLIDS-LOADEN LIQUID BY MEANS OF A SLUDGE BLANKET |
摘要 |
<p>The present invention provides a sludge belt method of clarifying a liquid charged with solid material. After a flocculation additive has been added thereto, the charged liquid is conveyed to the bottom of a sludge belt in a clarification chamber (40) via a plurality of injectors (76) spread out over the area of said chamber. The total flow rate through said injectors is evenly distributed between the injectors by an internal head loss. The clarified liquid is removed via an upper overflow (72). Each injector forms jets diverging from its vertical axis, so that the injected flow spreads out over an expansion zone belonging to said injector and meeting the expansion zones of adjacent injectors. In addition, the jets drive vortices which prevent the formation of a layer of sludge having insufficient permeability.</p> |
申请公布号 |
EP0174232(B1) |
申请公布日期 |
1988.11.02 |
申请号 |
EP19850401571 |
申请日期 |
1985.07.31 |
申请人 |
ALSTHOM |
发明人 |
LEJEUNE, PIERRE;BERTHOD, LOUIS |
分类号 |
B01D21/06;C02F1/52;(IPC1-7):C02F1/52;B01D21/00 |
主分类号 |
B01D21/06 |
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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