Method for oxygenation of waste water
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 18, 2001
Grant Date -
N/A
app pub date -
Jan 20, 2000
filing date -
Jan 20, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Oxygen is mixed with waste water at an early stage in a water treatment facility, to reduce odor caused by anaerobic reactions of sulfur. Waste water is withdrawn from a collection basin, by a pump connected to a suction pipe, and is mixed with oxygen from an external source. The mixture, having been saturated with oxygen, is then returned to the collection basin through a discharge pipe. The end of the discharge pipe is positioned at a higher vertical level than the end of the suction pipe, to prevent gas from entering the pump which would cause cavitation. Also, the end of the discharge pipe has a blind flange, such that the oxygen-enriched water exiting the discharge pipe flows in a direction which is non-parallel to the axis of the pipe. This arrangement provides better mixing of the oxygen with the water in the basin, and prevents the oxygen-enriched water from flowing too soon to the suction pipe. The invention substantially improves the efficiency and efficacy of waste water treatment, because it provides an economical way to oxygenate the waste water at an early stage in the treatment process.
First Claim
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