Activated sludge device having movable perforated plates and a nozzle for the destruction of foam
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United States of America Patent
Stats
-
Jul 11, 1989
Grant Date -
N/A
app pub date -
Oct 14, 1988
filing date -
Oct 16, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement for the destruction of foam building up on a sewage surface in form of activated sludge, in which a reaction vessel holds the suspended foam. The reaction vessel has perforated plates which may be raised and lowered. The reaction vessel is furthermore provided with an inlet pipe connection for untreated sewage, and a discharge pipe for the treated suspension. The reaction vessel is closed off at its upper side by a plate member which has at least one flow-through opening. A nozzle located within an enclosure, is connected to this flow-through opening. The nozzle has a lower wall and an upper wall disposed at an acute angle relative to one another. The lower wall and the upper wall of nozzle, furthermore, have adjacent edges forming an outlet opening of the nozzles. One of the walls of the nozzle is pivotably movable relative to the other wall.
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