Device for treating waste water especially rainwater
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United States of America Patent
Stats
-
Apr 2, 1996
Grant Date -
N/A
app pub date -
Jun 29, 1994
filing date -
Jun 30, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Device for treating waste water, especially rainwater by jointly carrying out degritting, degreasing and settling, which includes a degritter fitted with a grit trough, passed through by a descending then ascending flow of the water to be treated, a degreasing surface provided above a part of the degritter and the feed region of the settling tank, and a settling tank which includes a feed or presettling basin, a floor, a laminar settling region and an extraction trough, wherein the partition separating the degritter from the settling tank includes a flap valve making it possible, when it is open, to transfer the untreated water without perturbation towards the settling tank, and therefore allowing correct settling during this filling phase.
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International Classification(s)
Cited Art Landscape
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