Self-cleaning influent feed system for a wastewater treatment plant
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United States of America Patent
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Jul 24, 2012
Grant Date -
May 6, 2010
app pub date -
Jan 12, 2010
filing date -
Jul 22, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An influent feed system for directing the influent liquid via hydraulic energy to scour the surface of primary treatment tank walls and base to move the scoured solids to a sludge trough. Scouring action takes place during periods of low liquid levels in the tank. The system comprises two identical, adjacent tanks sharing a common distribution box. Either or both of the tanks are in use at any given time. The tank in use will be empty occasionally each day. Influent feed troughs disposed transversely in each tank directs solids towards a sludge hopper in the tank bottom. The IFTs extend over the width of the tank to provide scouring of the entire end wall and floor surface. Each IFT has a sump with a valved discharge piped directly to the sludge trough, and the floor of each IFT is sloped towards the sump to facilitates draining of solids.
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Cited Art Landscape
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