Compact apparatus for treating sludge by draining and pressing

Details Compact apparatus for treating sludge by draining and pressing Compact apparatus for treating sludge by draining and pressing

1992-03-10

1993-05-04

Hruskoci, Peter

Liquid purification or separation

Filter

Movable medium

210401, 210408, 100118, B01D 3304, C02F 1100

Patent

active

052079074

ABSTRACT:
Apparatus for dehydrating sludge originating from water purification stations, comprising a draining grid part positioned above a pressing-belt filter part, and a device for washing the grid wherein the device is positioned above the grid, so as to limit the drop height of the flocculated sludge between the grid and the belt, thus avoiding deflocculation of the sludge between the thickening stage and the dehydration stage, the washing of the grid being performed concurrently with the movement of the sludge on the grid.

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patent: 4181616 (1980-01-01), Bahr
patent: 4303523 (1981-12-01), Ruppnig
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patent: 4761895 (1988-09-01), Uyama et al.
patent: 4836100 (1989-06-01), Johnson et al.
patent: 4921608 (1990-05-01), Lee

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